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ุจุณู… ุงู„ู„ู‡ ุงู„ุฑุญู…ู† ุงู„ุฑุญูŠู… ุงู„ุณู„ุงู… ุนู„ูŠูƒู… ูˆุฑุญู…ุฉ ุงู„ู„ู‡
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ูˆุจุฑูƒุงุชู‡ and a very good morning to all of you
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ุงู„ูŠูˆู… ู‡ู†ุชู†ุงูˆู„ ู…ูˆุถูˆุน ุงู„ tear film and blinking
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ุจุฏุงูŠุฉ ู„ูˆ ุจุฏุฃู†ุง ุงู„ู…ุญุงุถุฑุฉ ู…ุง ู‡ูˆ ู…ูู‡ูˆู… ุงู„ tearsุŸ
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tears, it covers the anterior surface of the cornea
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ุทูŠุจ ุงู„ functions of tears, number one, nourishment
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of the cornea, number two, protection it from
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infection. okay, normal blinking from fifteen to
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twenty blinks. okay, from fifteen to twenty blinks
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Have an effect on fitting. ุจุฏุงูŠุฉ ุงู„ tear ู„ูˆ ูƒุงู†
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ุนู†ุฏู†ุง ุญุงุฌุฉ ุจู†ุณู…ูŠู‡ุง tear film instability
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ุฃูŠ
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ุนุฏู… ุซุจุงุช ููŠ ุงู„ tear. ู‡ุฐุง ุจูŠุคุซุฑ ุนู„ู‰ ุฃุฏุงุก ุงู„ุนุฏุณุฉ
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ุงู„ู„ุงุตู‚ุฉ
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ุฃูŠุถุง ู…ูˆุถูˆุน ุงู„ blinkingุŒ ุงู„ุชุฑู…ูŠุด ุงุญู†ุง ููŠ ุงู„ู…ุญุงุถุฑุฉ
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ุงู„ุณุงุจู‚ุฉ ุงุชูƒู„ู…ู†ุง ุนู† ุงู„ keratometer readings ูˆ ุงู„
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visual acuity chart. ุงุฐุง ุนู†ุฏู†ุง ูƒุงู† optimal fit
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lens, ู‡ูŠูƒูˆู† before ูˆ after ุงู„ blinking ุงู„ุตูˆุฑุฉ clear
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ู„ูˆ ูƒุงู†ุช loose before a blinking, clear after a
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blinking, ู‡ุชูƒูˆู† unclear. ู„ูˆ ูƒุงู†ุช tight before a
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blinking, unclear after a blinking, clear. ูุงู„ุงู†
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ุจู†ุณุชู†ุชุฌ ู…ู† ู‡ุฐุง ุงู„ูƒู„ุงู… ุงู†ู‡ ุงู„ .. ุงู†ู‡ ุงู„ blinking
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ุงู„ุชุฑู…ูŠุด ู‡ูˆ ุนุงู…ู„ ู…ู‡ู… ููŠ ุงู„ูˆุตูˆู„ ุงู„ู‰ ู…ูŠู†ุŸ ุงู„ optimal
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fit lens. okay
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Lens movement, ุญุฑูƒุฉ ุงู„ุนุฏุณุฉ ุงู„ู„ู‰ normally ู…ู† 0.5 to
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1 ู…ู„ูŠ ู…ุชุฑ, can be affected, ูŠู…ูƒู† ุงู†ู‡ ุชุชุฃุซุฑ by
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interactions, ุจูˆุงุณุทุฉ ุงู„ุชูุงุนู„ between the lens and
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upper lid. ุงุญู†ุง ุญูƒูŠู†ุง ุงู† ุงู„ diameter ู„ู„ soft contact
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lens ุฃูƒุจุฑ ู…ู† ุงู„ diameter ู„ู„ูƒูˆุฑู†ูŠุฉุŒ ูููŠ ู‡ู†ุงูƒ
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interaction ู…ุง ุจูŠู† ุงู„ upper eyelid ูˆ ุงู„ lens
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ู„ูƒู† ู‡ุฐุง ุงู„ุชูุงุนู„ ุจูŠู†ู‡ู… ู…ู† ู…ู…ูŠุฒุงุชู‡ ุงู†ู‡ no hard, no
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hard interaction. ูุงู„ุงู† ู„ูˆ ูƒุงู†ุช ููŠ ุนู†ุง ุฒูŠุงุฏุฉ ููŠ
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ุงู„ุญุฑูƒุฉ ู‡ุชู„ุงู‚ูŠ ุงู„ุดุฎุต ุงูŠุด ู…ุงู„ู‡ุŸ discomfort. ุจูŠุญูƒูŠู„ูƒ
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ูŠุนู†ูŠ ู…ู† ุงู„ .. ุถู…ู† ุงู„ุดูƒูˆู‰ ุงู†ู‡ ูŠู…ุง ูŠูŠุฌูŠ ุนู„ู‰ ุงู„ู…ุฑูƒุฒ
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ุจูŠู‚ูˆู„ูƒ ุฏุงูŠู…ุง ุงู†ุง ุจุญุณ ุงู„ุญุฑูƒุฉ ุจุชุฎุจุท .. ุงู„ุนุฏุณุฉ ุจุชุฎุจุท
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ูˆูŠู†ุŸ ููŠ ุงู„ upper eyelid. ูˆู‡ุฐุง ุบูŠุฑ ู…ุญู…ูˆุฏ ุจุงู„ู†ุณุจุฉ
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ู„ู…ูŠู†ุŸ ู„ู„ู…ุฑูŠุถ. ูุงู„ุงู† ุญุฑูƒุฉ ุงู„ุนุฏุณุฉ ู‡ูŠ ุชุนุชุจุฑ ุนุงู…ู„ ู…ู‡ู… ููŠ
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ุงู„ูˆุตูˆู„ ู„ู„ู€ optimal lens fitting ู„ู„ุนุฏุณุฉ ุงู„ู…ู„ุงุฆู…ุฉ ุฃูˆ
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ุงู„ุนุฏุณุฉ ุงู„ู…ู†ุงุณุจุฉ ุทุจุนุง
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ููŠ ู‡ู†ุงูƒ ุนูˆุงู…ู„ ุจุชุนุชู…ุฏ ุนู„ูŠู‡ุงุŒ depending on the
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lubricative properties of the pre-lens tear film
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ุฃูˆู„ ุญุงุฌุฉ ุงู†ู‡ ุจูŠุนุชู…ุฏ ุนู„ู‰ ุฎูˆุงุต ุงู„ุชุฑุทูŠุจ ู„ู„ tear film
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ุงุญู†ุง ุจู†ุนุฑู ุงู† ุงู„ tear film ุจุชูƒูˆู† ู…ู† ุชู„ุช ุทุจู‚ุงุช
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ุงู„ุทุจู‚ุฉ ุงู„ุฃูˆู„ู‰ ู‡ูŠ ุนุจุงุฑุฉ ุนู† ุงู„ outer lipid layer, ุงู„
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middle aqueous layer, ูˆ ุงู„ inner mucus layer. ุฏุงูŠู…ุง
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ู…ูˆุถูˆุน ุงู„ movement ุจูŠุนุชู…ุฏ ุจุงู„ุงุณุงุณ ุนู„ู‰ ุฒูŠุงุฏุฉ ุงู„ุชุฑุทูŠุจ
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ู„ู…ูŠู†ุŸ ู„ู„ุนุฏุณุฉ ุงู„ู„ุงุตู‚ุฉ. ู„ุฐู„ูƒ ู‡ู†ุงูƒ ุจุนุถ ุฃู†ูˆุงุน ุงู„ุนุฏุณุงุช
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ุงู„ู„ุงุตู‚ุฉ ุฎุงุตุฉ ุงู„ extended wearุŒ ู„ุงุฒู… ุงู„ู…ุฑูŠุถ ูƒู„ ู…ุง
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ูŠุณุชูŠู‚ุธ ู…ู† ุงู„ู†ูˆู… ุงู†ู‡ ูŠู‚ุทุฑ ุงูŠู‡ุŸ ู‚ุทุฑุฉ. ู‡ุฐู‡ ุงู„ู‚ุทุฑุฉ ุงูŠุด
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ุจุชุนู…ู„ุŸ ุนู…ู„ูŠุฉ ุชุฑุทูŠุจ ู„ู„ุนุฏุณุฉ ูˆ ุงูŠุถุง ุนู…ู„ูŠุฉ ุชุฑุทูŠุจ ู„ู…ูŠู†ุŸ
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ู„ู„ูƒูˆุฑู†ูŠุฉ ุงูŠุถุง. the surface equality of both lens
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and lid. ุงู„ุงู† ุงุฌุงู†ุง ุดุฎุต ูƒุงู† ุนู†ุฏู‡ a dry eye disease
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ู‡ู„ ุงู†ุง ุจุตุฑูู„ู‡ ุนุฏุณุฉ ู„ุงุณู‚ุฉุŸ ู„ุฃ ู„ุฃู†ู‡ ุนู†ุฏู‡ bad
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equality of tear film. ูู…ู† ุถู…ู† ุงู„ counter
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indication ู„ู‡ ุงู† ุงู†ุง ุงุฑูˆุญ ุงุตุฑู ุนุฏุณุฉ ู„ุงุณู‚ุฉุŒ ูˆุงุถุญุฉ
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ุงู„ููƒุฑุฉุŸ and the nature of the blink, ุทุจูŠุนุฉ ุงู„ุจู„ูŠู†ูƒ
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ุดุฎุต ูŠุนู†ูŠ ุจูŠุฑู…ุด ุจุดูƒู„ ู…ุณุชู…ุฑ ุฃูˆ ู…ุซู„ุง ุนู†ุฏู‡ ุฒูŠุงุฏุฉ ููŠ
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ุงู„ุชุฑู…ูŠุด, excessive blinking. ุฃูƒูŠุฏ ู‡ูŠูƒูˆู† ู‡ู†ุงูƒ ุฃูŠุด
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00:05:40,480 --> 00:05:49,120
ุนู†ุฏู‡ ุชุฃุซูŠุฑุงุช ุนู„ู‰ ุงุฑุชุฏุงุก ุงู„ุนุฏุณุฉ ุงู„ู„ุงุตู‚ุฉ. the
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post lens tear film appears to influence lens
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movement. ููŠ ุงู„ู…ุญุงุถุฑุฉ ุงู„ุณุงุจู‚ุฉ ุงุชูƒู„ู…ู†ุง ุงู† ุงู„ุนุฏุณุฉ
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00:06:00,090 --> 00:06:05,690
ุงู„ู„ุงุตู‚ุฉ ุจุชุชู…ูŠุฒ ุจ minimal movement compared to hard
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contact lens ุงู„ู„ูŠ ุจูŠุณุงุนุฏ ููŠ ุญุฑูƒุฉ ุงู„ post tear lens
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ู‡ูˆ ุนุจุงุฑุฉ ุนู† ู…ูŠู†ุŸ ุญุฑูƒุฉ ุงู„ุนุฏุณุฉ ู†ูุณู‡ุง. ูŠุนู†ูŠ ุงู„ุนุฏุณุฉ
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00:06:13,950 --> 00:06:18,850
ุจุชุชุญุฑูƒ ูู‡ุฐุง ุจูŠุณุงุนุฏ ููŠ ุญุฑูƒุฉ ู…ูŠู†ุŸ ุงู„ post tear lens
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hypotonic solutions. ู‡ู†ุงูƒ ุจุนุถ ุงู„ู…ุญู„ูŠู„ ุฒูŠ ุงู„
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hypotonic ุจุชุนู…ู„ ุนู„ู‰ ุณุญุจ ูƒู…ูŠุฉ ูƒุจูŠุฑุฉ ู…ู† ุงู„ู…ุงุก ุทุจุนุง
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00:06:33,270 --> 00:06:38,590
ู‡ุฐุง ุงู„ู…ูŠุŒ ุงู„ู…ุงุก ู…ู† ูˆูŠู† ุจู†ุณุญุจุŸ ู…ู† ุงู„ูƒูˆุฑู†ูŠุง. ุฒูŠ ููƒุฑุฉ
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00:06:38,590 --> 00:06:42,770
ุจุงู„ุถุจุท ุงู† ุดุฎุต ุนู†ุฏู‡ dry eye ุจุฏูŠู‡ high ูˆู„ุง low water
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contentุŸ low water content. ู†ูุณ ุงู„ุญุงุฌุฉ ุงู„ู…ุญู„ูˆู„ ู‡ุฐุง
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00:06:46,930 --> 00:06:51,390
ู…ุง ุจู†ูุน ู…ุน ุดุฎุต ูŠูƒูˆู† ุนู†ุฏู‡ dry eye ู„ุฃู† ุทุจูŠุนุฉ ู‡ุฐุง ุงู„
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solution ุจูŠุนู…ู„ ุนู„ู‰ ุงู…ุชุตุงุตุŒ absorptionุŒ ุฃูƒุจุฑ ูƒู…ูŠุฉ ู…ู†
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00:06:56,690 --> 00:07:01,910
ู…ูŠู† ู…ู† ุงู„ู…ูŠุงู‡ ุงู„ู„ูŠ ู…ูˆุฌูˆุฏุฉ ููŠ ุงู„ูƒูˆุฑู†ูŠุงุŒ ูˆุจุงู„ุชุงู„ูŠ ู‡ุฐุง
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00:07:01,910 --> 00:07:07,350
ุงูŠุด ู‡ูŠุณุจุจุŸ ุฌูุงู ููŠ ุงู„ุนูŠู†. ูˆู‡ุฐุง ู‡ูŠุฃุซุฑ ุงู„ู„ูŠ ู‡ูˆ ุนู„ู‰
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ุงู„ู…ุฑูŠุถ ู…ู† ุญูŠุซ ุงู„ dry eye symptoms. ุฅุฐุง hypotonic
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00:07:12,640 --> 00:07:17,580
solutions can thin the post lens tear film and
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cause lens adherence. ู‡ูŠุฃุซุฑ ุฃูˆู„ ุญุงุฌุฉ ุนู„ู‰ ุญุฑูƒุฉ
78
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ุงู„ุนุฏุณุฉุŒ ูˆุจุงู„ุชุงู„ูŠ ู‡ูŠุฃุซุฑ ุนู„ู‰ ุญุฑูƒุฉ tear lens. ูู‡ุชู„ุงุญุธ
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ุงู†ู‡ ุฏุงูŠู…ุง ุงู†ู‡ ููŠ ู‡ู†ุงูƒ adherenceุŒ ุชู…ุงุณูƒ ู…ุง ุจูŠู†
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ุงู„ุนุฏุณุฉ ูˆ ุงู„ูƒูˆุฑู†ูŠุง. ูŠุนู†ูŠ no sensation at all for the
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lens. ุงู„ู…ุฑูŠุถ ู…ุด ู‡ูŠุดุนุฑ ููŠ ุฅูŠุดุŸ ููŠ ูˆุฌูˆุฏ ุงู„ุนุฏุณุฉ lens
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settling. ุฃูŠ ุจู…ุนู†ู‰ ุงุณุชู‚ุฑุงุฑ ุงู„ุนุฏุณุฉุŒ ุงุณุชู‚ุฑุงุฑ ุงู„ุนุฏุณุฉ
83
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Post-insertion equilibration processุŒ ู‡ูŠ ุนู…ู„ูŠุฉ
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ุงุณุชู‚ุฑุงุฑ ุฃูˆ ุนู…ู„ูŠุฉ ุซุจุงุช ู„ู„ุนุฏุณุฉ. ูŠุนู†ูŠ ุฏุงูŠู…ุง ุงู† ุงู„ุนุฏุณุฉ
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ู„ุงุฒู… ูŠูƒูˆู† ููŠ ุงู„ู‡ุง concentration. ูˆู‡ุฐุง ุงู„
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concentration ุงูŠุด ูŠูƒูˆู† ุจูŠู† ู‚ุตูŠู†ุŸ ุฌูŠุฏ. ุงู„ุงู† ู„ูˆ ููŠ
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ุนู†ุฏู†ุง Decentration ู„ู„ุนุฏุณุฉุŒ ู‡ูŠูƒูˆู† ุงู„ evaluation
88
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ุนุจุงุฑุฉ ุนู† non optimal fit lens. ุตุญูŠุญุŸ ูุงู„ lens
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settlingุŒ post insertion equilibration process
90
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ุนู…ู„ูŠุฉ ุงุณุชู‚ุฑุงุฑ ุฃูˆ ุซุจุงุช ุงู„ุนุฏุณุฉ. the tear film sequest
91
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out by the initial blinking, by reduction in lens
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movement. ุฏุงูŠู…ุง ุงู„ู…ุฑูŠุถ ุงูˆู„ ู…ุง ุจุฑุชุฏูŠ ุงู„ุนุฏุณุฉ ุงู„ู„ุงุตู‚ุฉ
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ู‡ูŠุชูƒูˆู† ู‡ู†ุงูƒ tearุŒ ุฏู…ุนุŒ ุจุนุถ ู‡ุฐุง ุงู„ tear ู‡ูŠุชุฌู…ุน ูˆูŠู†ุŸ
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ุฎู„ู ุงู„ุนุฏุณุฉุŒ ูˆุงู„ุจุนุถ ุงู„ุขุฎุฑ ู‡ูŠุทู„ุน ู„ู„ุฎุงุฑุฌ. ุทุจุนุง ุชุฌู…ูŠุน
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ุงู„ tears ุฎู„ู ุงู„ุนุฏุณุฉุŒ ู‡ุฐุง ู‡ูŠู‚ู„ู„ ู…ู† ุงูŠู‡ุŸ ู…ู† ุญุฑูƒุฉ
96
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ุงู„ุนุฏุณุฉ. ุตุญูŠุญุŸ ุงูŠุถุง ูŠู…ุง ูŠุฎุฑุฌ ููŠ ุงู„ุฎุงุฑุฌ ุงู„ู…ุฑูŠุถ ู‡ูŠุตูŠุฑ
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ุงูŠู‡ุŸ over ุฃูˆ ู‡ูŠุตูŠุฑ ุงู„ู„ูŠ ู‡ูˆ ูŠุนู†ูŠ ุจู…ุนู†ู‰ ุญุณุงุณุŒ over
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sensitivity. ูŠุนู†ูŠ ุงู„ุญุณุงุณูŠุฉ ุนู†ุฏู‡ ุจุงู„ุฒูŠุฏ. reflects
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tearing. ุทุจุนุง ุนู†ุฏู†ุง ุงู„ tear secretionุŒ ุงู„
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tear
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secretionุŒ ุฅูุฑุงุฒ ุงู„ุฏู…ุนุŒ can be classified in
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two types
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ููŠ ู‡ู†ุงูƒ ู†ูˆุนูŠู†. ุงู„ู†ูˆุน ุงู„ุฃูˆู„ุŒ basic tear secretion
104
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ูˆุงู„ู†ูˆุน ุงู„ุชุงู†ูŠ ุงู„ reflex tear secretion. ุจุงู„ู†ุณุจุฉ ู„
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ุงู„ basic tear secretion ุงู„ู„ูŠ ู…ุณุฆูˆู„ ุนู†ู‡ ุงู„
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accessory lacrimal glands ุงู„ู„ูŠ ู‡ูŠ ุนุจุงุฑุฉ ุนู† ุงู„ูƒุฑุงูˆุณ
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ูˆ ุงู„ Wolfring glands. ุจุงู„ู†ุณุจุฉ ู„ ุงู„ reflex tear
108
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secretion ุงู„ู„ูŠ ู…ุณุฆูˆู„ ุนู†ู‡ ุงู„ main lacrimal glands
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ุทูŠุจุŒ ุงู„ุขู† ุงุฑุชุฏุงุก ุงู„ุนุฏุณุฉ ุงู„ู„ุงุตู‚ุฉ ุฃูŠุถุง ุจูŠุคุซุฑ ุนู„ู‰ ุงู„
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reflex tearing. ูƒูŠู ุจูŠุคุซุฑ ุนู„ู‰ ุงู„ reflex tearingุŸ
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reflex tearing on lens insertion may also affect
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lens movement. ุฅุฐุง ู‡ูˆ ุจุงู„ุฃุณุงุณ ู‡ูŠุคุซุฑ ุนู„ู‰ ุญุฑูƒุฉ
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ุงู„ุนุฏุณุฉุŒ leading to a transitory reduction. ูู‡ุฐุง ู‡ูŠุนู…ู„
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ุงู„ู„ูŠ ู‡ูˆ ุชู‚ู„ูŠู„ ุญุฑูƒุฉ ุงู„ุนุฏุณุฉ ุจุดูƒู„ ู…ุคู‚ุช. ู„ุฐู„ูƒ ุฏุงูŠู…ุง
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ุจูŠู†ุตุญ ุนู†ุฏ ุชู‚ูŠูŠู… ุงู„ุนุฏุณุฉ ุงู„ู„ูŠ ู„ุงุณู‚ุฉ ุงู„ู„ูŠู†ุฉุŒ ู…ุง ู†ุจุฏุฃ
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ุนู…ู„ูŠุฉ ุงู„ุชู‚ูŠูŠู… ุจุดูƒู„ ู…ุจุงุดุฑุŒ ุนู„ู‰ ุงู„ุฃู‚ู„ ู„ุงุฒู… ู†ู‚ูŠู… ุจุนุฏ
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ุฎู…ุณ ุฏู‚ุงุฆู‚. ุทุจุนุง ุจุนุฏ ุฎู…ุณ ุฏู‚ุงุฆู‚ ู‡ูŠุชุฌู…ุน ุงู„ tear ุฎู„ู
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ุงู„ุนุฏุณุฉุŒ ุงู„ tear ุงู„ู„ูŠ ู‡ูˆ ุงู„ุฎุงุฑุฌ ู‡ูŠู‚ู„ุŒ ูุงู†ุง ุจู‚ุฏุฑ ุงู†ู‡
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ุงุชู… ุงู„ู„ูŠ ู‡ูˆ ุนู…ู„ูŠุฉ ุงู„ุชู‚ูŠูŠู…
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Lens MovementุŒ ุญุฑูƒุฉ ุงู„ุนุฏุณุฉุŒ ุฒูŠ ู…ุง ุงุชูู‚ู†ุง ุงู† ุญุฑูƒุฉ
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ุงู„ุนุฏุณุฉ ุณูˆุงุก ููŠ ุงู„ hard contact lens ุฃูˆ ุงู„ soft
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contact lensุŒ ู‡ูŠ ุบูŠุฑ ูƒุงููŠุฉ ู„ุชู‚ูŠูŠู… ุงู„ุนุฏุณุฉ ู‡ู„ ู‡ูŠ
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optimal ุฃูˆ loose ุฃูˆ steep
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Immediately, ุจุงู„ุชุฃูƒูŠุฏุŒ on insertion is not usually
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representative of normal movement. ูŠุนู†ูŠ ุฃู†ุง ุฃูˆู„ ู…ุง
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ุฃู„ุจุณ ุงู„ุนุฏุณุฉ ู„ู„ู…ุฑูŠุถุŒ ู‡ุฐุง ู„ุง ูŠู…ุซู„ ุฃูˆ ู„ุง ูŠุนุจุฑ ุนู† ุญุฑูƒุฉ
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ุงู„ุนุฏุณุฉ ุงู„ุฃุตู„ูŠุฉ
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Evaluating movementุŒ ุชู‚ูŠูŠู… ุงู„ุญุฑูƒุฉุŒ after five
129
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minutesุŒ ุจุนุฏ ุฎู…ุณ ุฏู‚ุงุฆู‚ุŒ It predicts movement after
130
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eight hours of wear. ุงู„ุงู† ุงู†ุง ุนู†ุฏู…ุง ู‡ู‚ูˆู… ุจุนู…ู„ูŠุฉ ุงู„
131
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evaluation ุจุนุฏ ุฎู…ุณ ุฏู‚ุงุฆู‚ ู‡ูŠ ุจุชูƒุชุดู ุญุฑูƒุฉ ุงู„ุนุฏุณุฉ ุจุนุฏ
132
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ุซู…ุงู† ุณุงุนุงุช. okayุŒ ูŠุนู†ูŠ ูˆูƒุฃู†ู‡ ุนู…ู„ุชู„ู‡ ุชู‚ูŠูŠู… ุจุนุฏ ุซู…ุงู†
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ุณุงุนุงุช. I
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closerุŒ ุงุบู„ุงู‚ ุงู„ุนูŠู†ุŒ ูˆุงุถุญุฉ ุงู„ููƒุฑุฉ ู‡ุฐู‡ุŸ ุงุฐุง ุงู„ุงู† ุนู†ุฏู†ุง
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ุชู‚ูŠูŠู… ุงู„ุนุฏุณุฉ ุจุนุฏ ุฎู…ุณ ุฏู‚ุงุฆู‚ ูˆูƒุฃู†ู‡ ุงู†ุง ุนู…ู„ุช ู„ู†ูˆุฑ
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ุชู‚ูŠูŠู… ู„ู„ุนุฏุณุฉ ุจุนุฏ ุซู…ุงู† ุณุงุนุงุช. ู‡ุชูƒูˆู† ุงู„ movement of
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the lens the same. Eye closer can also affect lens
138
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movement. ุฃูŠุถุง ุงู„ู„ูŠ ู‡ูˆ ุจุชุฃุซุฑ ุนู„ู‰ ุญุฑูƒุฉ ุงู„ุนุฏุณุฉ. ูŠุนู†ูŠ
139
00:13:25,510 --> 00:13:29,870
ุงู†ุชูˆุง ู…ู„ุงุญุธูŠู† ุงู† ูƒู„ ุงู„ุนู†ุงุตุฑ ุฃูˆ ูƒู„ ุงู„ุนูˆุงู…ู„ ู‡ูŠ ุจุชุฃุซุฑ
140
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ุนู„ู‰ ู…ูŠู†ุŸ ุนู„ู‰ ุงู„ lens movement. ุทูŠุจ ุงู„ eye closer
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ูƒูŠู ุจุชุฃุซุฑ ุนู„ู‰ ุญุฑูƒุฉ ุงู„ุนุฏุณุฉุŸ ุฅู†ู‡ ุจูŠุจุทู„ ูŠูƒูˆู† ุนู†ุฏ
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ุงู„ู…ุฑูŠุถ ุฅูŠู‡ุŸ ุฃูŠู‘ุฉ blinking
143
00:13:44,490 --> 00:13:50,410
eye closure as short as 15 minutes thinning of the
144
00:13:50,410 --> 00:13:55,590
post lens tear film by reduce lens movement to
145
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near zero ุงู„ุขู† ู„ูˆ ุดุฎุต ู‚ุงู… ุจุฅุบู„ุงู‚ ุนูŠู†ู‡ ุฎู…ุณ ุนุดุฑ
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ุฏู‚ูŠู‚ุฉ ู†ูุชุฑุถ ุทุจุนู‹ุง ุงู„ุขู† ู‡ูˆ ุฅูŠุด ู„ุงุจุณ ูŠุง ุฌู…ุงุนุฉุŸ
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conventional daily wear lens ูŠุนู†ูŠ ุนุฏุณุฉ ุงู„ู„ุจุณ
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ุงู„ูŠูˆู…ูŠ ุงู„ุชู‚ู„ูŠุฏูŠ ู‡ูˆ ู…ุด ู„ุงุจุณ ุนุฏุณุฉ extended wear ุฃูˆ
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daily wear ูˆุงุถุญุฉุŸ ุฅุฐุง ุงุบู„ุงู‚ ุงู„ุนูŠู† ู„ู…ุฏุฉ ุฎู…ุณ ุนุดุฑ
150
00:14:20,220 --> 00:14:25,080
ุฏู‚ูŠู‚ุฉ ู‡ุฐู‡ ู‡ุชุนู…ู„ thinning ู„ู…ูŠู†ุŸ ู„ู„ post lens tear
151
00:14:25,080 --> 00:14:31,040
film ู†ุชูŠุฌุฉ ุฃู† ููŠ ู‡ู†ุงูƒ ู‚ู„ุฉ ู„ุญุฑูƒุฉ ุงู„ุนุฏุณุฉ ู„ุฃู† ุชู‚ุฑูŠุจู‹ุง
152
00:14:31,040 --> 00:14:32,800
ููŠ ู‡ู†ุงูƒ stable
153
00:14:35,440 --> 00:14:41,300
movement ุซุจุงุช ู„ุญุฑูƒุฉ ุงู„ุนุฏุณุฉ ุงู„ู„ูŠ ู‡ูŠ ุชู‚ุฑูŠุจู‹ุง ู‚ุฏ ุฅูŠุด
154
00:14:41,300 --> 00:14:51,720
ุจุงู„ุณุงูˆูŠ zero ู…ุง ููŠุด ุฃูŠ ุญุฑูƒุฉ ู„ู…ูŠู† ู„ู„ุนุฏุณุฉ air
155
00:14:51,720 --> 00:14:55,280
movement ุญุฑูƒุฉ ุงู„ู„ูŠ ู‡ูˆ ุงู„ู‡ูˆุงุก
156
00:14:57,820 --> 00:15:03,580
At the anterior surface of the lens by post lens
157
00:15:03,580 --> 00:15:07,360
tear film thinning by reduction in lens movement
158
00:15:07,360 --> 00:15:13,640
ุงู„ุขู† ุงู„ุนุฏุณุฉ ุงู„ู„ุงุตู‚ุฉ ุงู„ู‚ุฑู†ูŠุฉ ุจุชุชูƒูˆู† ู…ู† ุณุทุญูŠู† ุณุทุญ
159
00:15:13,640 --> 00:15:20,070
ุฃู…ุงู…ูŠ ูˆุณุทุญ ุฎู„ููŠ ุงู„ุขู† ุชุนุฑุถ ุงู„ุนุฏุณุฉ ู„ู„ู‡ูˆุงุก ุงู„ุฌูˆูŠ
160
00:15:20,070 --> 00:15:25,490
ู‡ูŠุนู…ู„ ุงู…ุชุตุงุต ู„ู…ู†ุŸ ู„ู„ู€ air ุตุญูŠุญุŸ ูŠุนู†ูŠ ูˆูƒุฃู†ู‡ ุฅู†ู‡
161
00:15:25,490 --> 00:15:29,930
ู‡ูŠุตูŠุฑ ู‡ู†ุงูƒ thinning ู„ู€ ุงู„ post tear limbs ูˆุจุงู„ุชุงู„ูŠ
162
00:15:29,930 --> 00:15:38,230
ู‡ุฐุง ุฃูŠุถู‹ุง ู‡ูŠุฃุซุฑ ุนู„ู‰ ู…ูŠู†ุŸ ุนู„ู‰ ุญุฑูƒุฉ ุงู„ุนุฏุณุฉ water
163
00:15:38,230 --> 00:15:44,630
flow conductivity ุชุฏูู‚ ุงู„ู…ุงุก ุฃูˆ ุชุฏูู‚ ุงู„ tear ุฎู„ุงู„
164
00:15:44,630 --> 00:15:45,370
ุงู„ุนุฏุณุฉ
165
00:15:49,080 --> 00:15:54,020
The flow conductivity ุนู…ู„ูŠุฉ ุงู„ุชุฏุฎู‚ is a function
166
00:15:54,020 --> 00:16:00,460
of the material pore size and lens thickness ุงู„ุขู†
167
00:16:00,460 --> 00:16:05,520
ููŠ ุนู†ุฏู†ุง ู‚ุงู†ูˆู† ุงู„ oxygen transmissibility equal dk
168
00:16:05,520 --> 00:16:12,140
over T ุตุญูŠุญุŸ ุงู„ุขู† ูƒู„ ู…ุง ุฒุงุฏุช ุณู…ุงูƒุฉ ุงู„ุนุฏุณุฉ ู‡ุฐุง ู‡ูŠู‚ู„ู„
169
00:16:12,140 --> 00:16:17,760
ู…ู† ุฅูŠุดุŸ ู…ู† ู†ูุงุฐูŠุฉ ุฏุฎูˆู„ ุงู„ oxygen ุฃูŠุถู‹ุง ู‡ูŠู‚ู„ู„ ู…ู†
170
00:16:17,760 --> 00:16:24,280
ุฏุฎูˆู„ ุงู„ tears okay ู„ุง ุงู„ cornea ู„ุฐู„ูƒ ุฏุงุฆู…ู‹ุง ุจู†ู†ุตุญ
171
00:16:24,280 --> 00:16:28,620
ุจุงู„ุนุฏุณุงุช ุงู„ daily wear ุฃูˆ ุงู„ extended wear ุฃู† ุชูƒูˆู†
172
00:16:28,620 --> 00:16:33,860
very thin ุนุดุงู† ุชุณู…ุญ ุจุฃูƒุจุฑ ูƒู…ูŠุฉ ู…ู† ุงู„ tear ุฃู† ูŠุฏุฎู„
173
00:16:33,860 --> 00:16:40,240
ูˆุฃูŠุถู‹ุง ู…ู† ุงู„ oxygen ู„ุฐู„ูƒ ุงู„ู…ูˆุงุฏ ุงู„ู„ูŠ ู…ุตู†ูˆุนุฉ ู…ู† ุงู„
174
00:16:40,240 --> 00:16:43,240
high water ุฃูˆ ุงู„ุนุฏุณุงุช ุงู„ู„ูŠ ู…ุตู†ูˆุนุฉ ู…ู† ุงู„ high water
175
00:16:43,240 --> 00:16:47,960
content ู‡ุชู„ุงู‚ูŠ ูƒู…ูŠุฉ ุงู„ุชุฏูู‚ ููŠู‡ุง ุฅูŠู‡ ูƒุจูŠุฑ ูˆุนุงู„ูŠ
176
00:16:47,960 --> 00:16:53,020
ู…ู‚ุงุฑู†ุฉ ุจุงู„ low water content ุฃูˆ ุงู„ medium water
177
00:16:53,020 --> 00:16:59,940
content ุฃูŠุถู‹ุง ูƒู„ ู…ุง ุฒุงุฏุช ุงู„ู…ุณุงู…ุงุช ููŠ ุฏุงุฎู„ ุงู„ุนุฏุณุฉ ูƒู„
178
00:16:59,940 --> 00:17:05,470
ู…ุง ูƒุงู† ุงู„ุชุฏูู‚ ู„ู„ tear ุฃูƒุซุฑ ุฃูƒุซุฑ ูƒู„ ู…ุง ุฒุงุฏุช ุงู„ู…ุณุงู…ุงุช
179
00:17:05,470 --> 00:17:09,330
ูŠุนู†ูŠ ุงู„ูุชุญุงุช ุงู„ู„ูŠ ู…ูˆุฌูˆุฏุฉ ููŠ ุฏุงุฎู„ ุงู„ุนุฏุณุฉ ู‡ูŠุณู…ุญ
180
00:17:09,330 --> 00:17:15,810
ุจุฏุฎูˆู„ ูƒู…ูŠุฉ ุฃูƒุจุฑ ู…ู† ู…ูŠู† ู…ู† ุงู„ tear high water
181
00:17:15,810 --> 00:17:19,290
content materials ุทุจุนู‹ุง ุฅุญู†ุง ุนุงุฑููŠู† ุงู„ high water
182
00:17:19,290 --> 00:17:23,550
content okay ุงู„ materials ู‡ู†ุถูŠู ู„ู‡ุง ู…ุงุฏุฉ ุงู„ุณูŠู„ูŠูƒูˆู†
183
00:17:23,550 --> 00:17:28,570
ุนุดุงู† ู†ุนู…ู„ ุฒูŠุงุฏุฉ ู„ู…ูŠู† ู„ู€ ุงู„ wetability ุงู„ู…ุชุงู†ุฉ okay
184
00:17:53,650 --> 00:18:00,700
Lens Verification and Inspection Lens verification
185
00:18:00,700 --> 00:18:05,640
ุฃูŠ ุจู…ุนู†ู‰ ุงู„ุชุญู‚ู‚ ู…ู† ุงู„ุนุฏุณุฉุŒ ุฏุงุฆู…ู‹ุง ุฃู†ุง ูƒ
186
00:18:05,640 --> 00:18:11,460
practitioner ู„ุงุฒู… ุฃุนู…ู„ ุชุญู‚ู‚ ู„ุฃุฏุงุก ุงู„ุนุฏุณุฉุŒ ุฎุงุตุฉ ุฅุฐุง
187
00:18:11,460 --> 00:18:14,940
ูƒุงู†ุช conventional daily wearุŒ ูŠุนู†ูŠ ุงู„ู…ุฑูŠุถ ุจุนู…ู„
188
00:18:14,940 --> 00:18:19,980
ุจุงุณุชู…ุฑุงุฑ follow-up ุนู†ุฏู‡ and inspection ุฅู†ู‡ ุฃุนู…ู„
189
00:18:19,980 --> 00:18:22,680
ุนู…ู„ูŠุฉ ุชูุชูŠุด ู„ู…ูŠู† ู„ู„ุนุฏุณุฉ
190
00:18:25,450 --> 00:18:31,030
Lens Integrity ุณู„ุงู…ุฉ ุงู„ุนุฏุณุฉ checked ุจุชุชู… ุชุฃูƒูŠุฏู‡ุง
191
00:18:31,030 --> 00:18:36,530
using ุจุงุณุชุฎุฏุงู… a projection microscope ุฃูˆ ุงู„ุณุชู„ู…
192
00:18:36,530 --> 00:18:41,110
ุฏุงุฆู…ู‹ุง ุนู…ู„ูŠุฉ ุงู„ุชู‚ูŠูŠู… ุณูˆุงุก ุงู„ู„ูŠ ุฃุฎุฐู†ุงู‡ุง ุงู„ corneal
193
00:18:41,110 --> 00:18:44,830
staining ุฃูˆ ุงู„ conjunctival staining ุฃูŠุถู‹ุง ุณู„ุงู…ุฉ
194
00:18:44,830 --> 00:18:49,370
ุงู„ุนุฏุณุฉ ุจุชุชู… ู…ู† ุฎู„ุงู„ ุงู„ bio microscope ุฃูˆ ุงู„ุณุชู„ู…
195
00:18:51,600 --> 00:18:55,140
when the lens is on the eyeุŒ ุฅุฐุง ุฏูŠุฏูŠ ุฃุนู…ู„ ุฅูŠู‡ุŸ
196
00:18:55,140 --> 00:19:00,060
insertion ู„ู„ุนุฏุณุฉ okayุŒ ุฅุฐุง ู„ุงุฒู… ุฃู†ุง ุฃุนู…ู„ insertion
197
00:19:00,060 --> 00:19:07,200
ู„ู„ุนุฏุณุฉ check for edge defectsุŒ ุฏุงุฆู…ู‹ุง ู…ู…ูƒู† ูŠูƒูˆู† ููŠู‡
198
00:19:07,200 --> 00:19:12,980
ู‡ู†ุงูƒ scratch ู„ุญูˆุงู ุงู„ุนุฏุณุฉ ุฃูˆ ู…ู…ูƒู† ูŠูƒูˆู† ููŠู‡ ู‡ู†ุงูƒ
199
00:19:14,010 --> 00:19:18,730
ู…ุซู„ู‹ุง ู„ุณุนุฉ ููŠ ุฃุทุฑุงู ุงู„ุนุฏุณุฉ ูุฏุงูŠู…ู‹ุง ุฃู†ุง ุจุฏูŠ ุฃุชุฃูƒุฏ ู…ู†
200
00:19:18,730 --> 00:19:23,910
ู‡ุฐู‡ ุงู„ู†ู‚ุทุฉ ู…ู† ุฎู„ุงู„ ุฌู‡ุงุฒ ุงู„ุงุณุชู„ุงู† ุฃูŠุถู‹ุง ุจุดูˆู ุงู„
201
00:19:23,910 --> 00:19:28,470
central ู…ุฑูƒุฒ ุงู„ุนุฏุณุฉ ุฅู†ู‡ ู‡ู„ ู‡ูˆ ุณู„ูŠู… ูˆู„ุง ููŠู‡ defects
202
00:19:32,290 --> 00:19:37,430
Variety of Electronic Mechanical Gauges or
203
00:19:37,430 --> 00:19:42,490
Bakymeter Major Soft Lens Thickness ุทุจุนู‹ุง ุฒูŠ ู…ุง
204
00:19:42,490 --> 00:19:47,170
ุฅุญู†ุง ุนุงุฑููŠู† ุฃู† ู‡ู†ุงูƒ ูŠูˆุฌุฏ ู…ุฌู…ูˆุนุฉ ู…ู† ุงู„ parameters
205
00:19:47,170 --> 00:19:52,290
ุงู„ู„ูŠ ุฎุงุตุฉ ุจุงู„ุนุฏุณุฉ ุงู„ soft contact lens ุจุชุดู…ู„ ุงู„
206
00:19:52,290 --> 00:19:56,610
power ุงู„ diameter ุงู„ base curve ุงู„ water content
207
00:19:56,610 --> 00:20:00,970
ุงู„ thickness of the lens ุนู†ุฏู†ุง ู…ูˆุถูˆุน ู…ุซู„ู‹ุง ุงู„
208
00:20:00,970 --> 00:20:04,950
thickness of the lens ุจุชุชู… ุชู‚ูŠูŠู…ู‡ุง ู…ู† ุฎู„ุงู„ ุฌู‡ุงุฒ
209
00:20:04,950 --> 00:20:10,290
electronic mechanical gauges ุฃูˆ ุงู„ bakymeter ูŠุนู†ูŠ
210
00:20:10,290 --> 00:20:19,010
ุงู„ุฌู‡ุงุฒ ู‡ุฐุง ุฎุงุต ุจุณู…ุงูƒุฉ ุนุฏุณุฉ ุงู„ soft contact lens it
211
00:20:19,010 --> 00:20:25,670
is impractical for the practitioner to verify each
212
00:20:25,670 --> 00:20:30,770
disposable lens but the patient can check each new
213
00:20:30,770 --> 00:20:36,490
lens before inserting it ุฏุงุฆู…ู‹ุง ุงู„ุนุฏุณุงุช ุงู„ู„ูŠ ุจุชู„ุจุณ
214
00:20:36,490 --> 00:20:41,990
ู„ูุชุฑุงุช ุฒู…ู†ูŠุฉ ู‚ุตูŠุฑุฉ ู…ู† ุงู„ู…ุณุชุญูŠู„ ุฅู†ู‡ ูƒู„ ุดูˆูŠุฉ ุงู„ู…ุฑูŠุถ
215
00:20:41,990 --> 00:20:45,970
ูˆูŠู†ุฑูˆุญ ุนู„ู‰ ุงู„ practitioner ูŠุดูˆู ูŠุนู…ู„ verification
216
00:20:45,970 --> 00:20:52,020
ู„ู„ุนุฏุณุฉ ูุฃู†ุง ูƒ practitioner ู„ุงุฒู… ุฅู†ู‡ ุฃุนู„ู… ู…ู† ุงู„ู…ุฑูŠุถ
217
00:20:52,020 --> 00:20:57,140
ุฅู†ู‡ ูƒูŠู ูŠุนู…ู„ insertion ุฃูˆ removal ู„ู„ุนุฏุณุฉ ูˆูƒูŠู ูŠุนู…ู„
218
00:20:57,140 --> 00:21:01,620
check ู„ู„ุนุฏุณุฉ ุฅู†ู‡ ู‡ู„ ู‡ูŠ ุงู„ุฃุทุฑุงู ููŠู‡ุง ุณู„ูŠู…ุฉุŒ ู‡ู„ ุงู„
219
00:21:01,620 --> 00:21:05,220
center ููŠู‡ุง ุณู„ูŠู…ุŒ ู„ูŠุดุŸ ู„ุฃู† ู‡ุฐู‡ ุงู„ุนุฏุณุงุช ุจุชุนูŠุด ูุชุฑุฉ
220
00:21:05,220 --> 00:21:08,860
ุฒู…ู†ูŠุฉ ู‚ุตูŠุฑุฉุŒ ุฅุฐุง ูƒุงู†ุช daily wearุŒ ุจู„ุจุณู‡ุง ู„ู…ุฏุฉ ูŠูˆู…
221
00:21:08,860 --> 00:21:12,960
ูˆุงุญุฏุŒ ุฅุฐุง ูƒุงู†ุช extended wearุŒ ุจู„ุจุณู‡ุง ู„ู…ุฏุฉ ุฃุณุจูˆุนุŒ
222
00:21:12,960 --> 00:21:14,900
ูˆุจุนุฏ ุฐู„ูƒ ุจุชุฎู„ุต ู…ู†ู‡ุง
223
00:21:17,600 --> 00:21:22,560
ููŠ ุฃูŠ ุงุณุชูุณุงุฑ ุฃูŠ ุณุคุงู„ ูˆุงุถุญุฉ ุงู„ุฃู…ูˆุฑ ุฅู† ุดุงุก ุงู„ู„ู‡ okay
224
00:21:25,960 --> 00:21:31,400
ุงู„ุขู† ุจุฏู†ุง ู†ุนู…ู„ ุนู…ู„ูŠุฉ ูƒู„ ุงู„ู„ูŠ ุงุชูƒู„ู…ู†ุง ููŠู‡ ุงู„ุชู‚ูŠูŠู…
225
00:21:31,400 --> 00:21:38,060
ุงู„ุณุงุจู‚ ูƒุงู† ู…ู† ุฎู„ุงู„ ุงู„ุนุฏุณุฉ ุฅู†ู‡ ุชู‚ูŠูŠู… ู„ู„ุนุฏุณุฉ ุณูˆุงุก ุงู„
226
00:21:38,060 --> 00:21:42,400
base curve ุงู„ diameter ุงู„ power ุฃูŠุถู‹ุง ุชู‚ูŠูŠู… ุงู„
227
00:21:42,400 --> 00:21:46,280
water content ุงู„ thickness ู„ู„ุนุฏุณุฉ ุงู„ุขู† ู‡ู†ุชูƒู„ู… ู…ู†
228
00:21:46,280 --> 00:21:47,360
ู†ุงุญูŠุฉ ูุณูŠูˆู„ูˆุฌูŠุฉ
229
00:21:51,290 --> 00:21:56,110
It's the term used by Efron and Holden to
230
00:21:56,110 --> 00:22:01,550
designate the role of lens design and fitting in
231
00:22:01,550 --> 00:22:06,910
ocular complications in lens wear ููŠ ู‡ู†ุงูƒ ุจุงุญุซูŠู†
232
00:22:06,910 --> 00:22:12,350
ููŠ ุงู„ุนุฏุณุงุช ุงู„ู„ุงุตู‚ุฉ ุงู„ุฃูˆู„ Efron ูˆุงู„ุซุงู†ูŠ Holden
233
00:22:12,350 --> 00:22:18,800
ุนู…ู„ูˆุง ูƒุชุงุจ ุฐูƒุฑูˆุง ููŠ ู‡ุฐุง ุงู„ูƒุชุงุจ ูƒู„ ู…ุถุงุนูุงุช ุงู„ุนุฏุณุงุช
234
00:22:18,800 --> 00:22:24,780
ุงู„ู„ุงุตู‚ุฉ ุณูˆุงุก ูƒุงู†ุช ุงู„ู„ูŠู†ุฉ ุฃูˆ ุงู„ุตู„ุจุฉ ูˆุฃูŠุถู‹ุง ูˆุถุนูˆุง
235
00:22:24,780 --> 00:22:30,800
ู…ุฌู…ูˆุนุฉ ู…ู† ุงู„ู…ุนุงูŠูŠุฑ ุฃูˆ ู…ุฌู…ูˆุนุฉ ู…ู† ุงู„ parameters ู…ู†
236
00:22:30,800 --> 00:22:35,500
ุฎู„ุงู„ู‡ุง ุฃู†ุง ุจู‚ุฏุฑ ุฃุนู…ู„ ุชู‚ูŠูŠู… ู„ู„ุนุฏุณุฉ ุงู„ู„ุงุตู‚ุฉ
237
00:22:39,430 --> 00:22:43,530
Some ocular complications ุจุนุถ ู…ู† ู‡ุฐู‡ ุงู„ู…ุถุงุนูุงุช
238
00:22:43,530 --> 00:22:49,010
ู„ู„ุนูŠู† of contact lens were observed at follow-up
239
00:22:49,010 --> 00:22:54,270
visits ูŠุนู†ูŠ ู…ู…ูƒู† ุฃู† ุฃู†ุง ุฃูƒุชุดูู‡ุง ูƒ examiner ุฃูˆ ูƒ
240
00:22:54,270 --> 00:22:58,170
practitioner ู…ู† ุฎู„ุงู„ ุฃู† ุงู„ู…ุฑูŠุถ ุฅูŠุด ูŠุนู…ู„ follow-up
241
00:22:58,170 --> 00:23:01,470
ุฅุฐุง ู…ุฏุงู… follow-up ุจุฏูŠ ุฃูู‡ู… ุฃู† ู‡ุฐู‡ ุงู„ุนุฏุณุฉ ุฅูŠู‡
242
00:23:01,470 --> 00:23:03,190
conventional daily wear
243
00:23:07,830 --> 00:23:13,510
At follow-up visits can be viewed as an indication
244
00:23:13,510 --> 00:23:19,290
for changing lens design for a given mood of wear
245
00:23:19,290 --> 00:23:25,570
ูŠุนู†ูŠ ุงู„ุขู† ู…ุซู„ู‹ุง ุงู„ู…ุฑูŠุถ ูŠูŠุฌูŠ ุนู†ุฏูŠ ุนู„ู‰ ุงู„ู…ุฑูƒุฒ ูˆุฃุฏูŠุชู‡
246
00:23:25,570 --> 00:23:29,930
ุนุฏุณุงุช conventional daily wear ู„ูƒู† ู‡ุฐุง ุงู„ู…ุฑูŠุถ ู…ุง
247
00:23:29,930 --> 00:23:33,830
ุชูŽุฃู‚ู„ู… ู…ุน ู‡ุฐุง ุงู„ู†ูˆุน ู…ู† ุงู„ุนุฏุณุงุช ุงู„ุขู† ุฃู†ุง ุจุฏูŠ ุฃุนู…ู„
248
00:23:33,830 --> 00:23:39,810
ุนู…ู„ูŠุฉ ุชุบูŠูŠุฑ ู„ู†ูˆุน ุงู„ุนุฏุณุฉ ู„ู€ type of a lens ู…ู…ูƒู† ุฃุฏูŠ
249
00:23:39,810 --> 00:23:44,450
ู…ุซู„ู‹ุง daily wear ุฃูˆ extended wear ู‡ุฐุง ูƒู„ู‡ ู„ุงุฒู… ุฃู†ุง
250
00:23:44,450 --> 00:23:48,170
ุฃูƒูˆู† ุจุนูŠู† ุงู„ุงุนุชุจุงุฑ ุจุงู„ู†ุณุจุฉ ู„ู„ู…ุฑูŠุถ ูŠุนู†ูŠ ุจุฏูŠ ุฃู‚ูˆู„ู‡
251
00:23:48,170 --> 00:23:52,470
ุฃู† ุงู„ rules ุงู„ุฎุงุตุฉ ุจุงู„ conventional daily wear ุงู„
252
00:23:52,470 --> 00:23:55,390
rules ุงู„ุฎุงุตุฉ ููŠ ุงู„ extended wear ุนู…ู„ูŠุฉ ุงู„
253
00:23:55,390 --> 00:23:59,310
insertion ุงู„ removal ุนู…ู„ูŠุฉ ุฃูŠุถู‹ุง ุงู„ู„ูŠ ู‡ูˆ ุงู„ check
254
00:23:59,310 --> 00:24:03,370
ู„ู„ุนุฏุณุฉ ู„ุงุฒู… ุชูƒูˆู† ูˆุงุถุญุฉ ุจุงู„ู†ุณุจุฉ ู„ู„ patient
255
00:24:06,420 --> 00:24:12,260
such ocular changes fall into eight categories of
256
00:24:12,260 --> 00:24:18,380
signs and symptomsุŒ ู‡ู†ุงูƒ ุชู…ุงู… ู…ุฌู…ูˆุนุงุช ู‡ุฐู‡ ุฎุงุตุฉ
257
00:24:18,380 --> 00:24:24,160
ุจุงู„ุดูƒูˆู‰ ู…ู† ู‚ุจู„ ุงู„ู…ุฑูŠุถ ุฃูˆ ุงู„ signs ุงู„ู„ูŠ ุจูŠุดูˆูู‡ุง ู…ูŠู†
258
00:24:24,160 --> 00:24:27,920
ุฃูˆ ุงู„ clinical sign ุงู„ู„ูŠ ุจูŠุดูˆูู‡ ุงู„ examiner ุฃูˆ ุงู„
259
00:24:27,920 --> 00:24:28,400
practitioner
260
00:24:31,720 --> 00:24:39,400
Number one Hypoxia and hypercapnia Hypoxia ู…ุนู†ุงู‡ุง
261
00:24:39,400 --> 00:24:44,820
ุฅูŠู‡ุŸ ู†ู‚ุต ููŠ ุงู„ุฃูƒุณุฌูŠู† ู„ู„ุฃู†ุชูŠุฑูŠูˆุฑ surface of the
262
00:24:44,820 --> 00:24:50,500
cornea Hypercapnia ุฒูŠุงุฏุฉ ุฏุฎูˆู„ ุซุงู†ูŠ ุฃูƒุณุฌูŠู† ุซุงู†ูŠ
263
00:24:50,500 --> 00:24:54,640
ุงู„ุฃูƒุณุฌูŠู† ู†ุนู… ุงู„ู„ูŠ ู‡ูˆ ุงู„ู€CO2 ู„ูˆูŠู†ุŸ ู„ู„ุฃู†ุชูŠุฑูŠูˆุฑ
264
00:24:54,640 --> 00:25:00,140
surface of the cornea ุฒูŠุงุฏุฉ ุงู„ู„ูŠ ู‡ูˆ increase
265
00:25:02,530 --> 00:25:10,310
ุงู„ู€ ู‡ูŠุจูˆูƒุณูŠุฉ ุชุชุฎู„ุต ู…ู† ุงู„ู€CO2 ุฅู„ู‰ ุงู„ุฌุฒุก ุงู„ุฃู…ุงู…ูŠ
266
00:25:10,310 --> 00:25:16,350
ุงู„ู‚ู„ุจูŠ
267
00:25:16,350 --> 00:25:22,410
ุงู„ู€ ู‡ูŠุจูˆูƒุณูŠุฉ
268
00:25:22,410 --> 00:25:31,630
ุชุชุฎู„ุต ู…ู† ุงู„ู€CO2 ุฅู„ู‰ ุงู„ุฌุฒุก ุงู„ุฃู…ุงู…ูŠ ุงู„ู‚ู„ุจูŠ Normally
269
00:25:31,630 --> 00:25:35,950
there is a flow of oxygen into the anterior
270
00:25:35,950 --> 00:25:42,010
corneal surface and an efflux of carbon dioxide
271
00:25:42,010 --> 00:25:48,070
ูŠุนู†ูŠ ู…ู† ุงู„ุทุจูŠุนูŠ ุฃู† ูŠุชู… ู‡ู†ุงูƒ ุชุฏูู‚ ู„ู„ุฃูƒุณุฌูŠู† ุฏุงุฎู„
272
00:25:48,070 --> 00:25:53,590
ุงู„ุณุทุญ ุงู„ุฃู…ุงู…ูŠ ู„ู„ู‚ุฑู†ูŠุฉ ูˆูŠุตูŠุฑ ุฅูŠุด ุงู„ู„ูŠ ู‡ูˆ ุฎุฑูˆุฌ
273
00:25:53,590 --> 00:25:58,050
efflux ุฃูŠ ุจู…ุนู†ู‰ ุฎุฑูˆุฌ ู„ุซุงู†ูŠ ุฃูƒุณูŠุฏ ุงู„ูƒุฑุจูˆู†
274
00:26:01,730 --> 00:26:07,230
When the eyelid is closed during sleepุŒ ุฅุฐุง
275
00:26:07,230 --> 00:26:13,190
ุงู„ุฅู†ุณุงู† ู‡ูˆ ู†ุงุฆู…ุŒ okayุŒ the palpebral vascular
276
00:26:13,190 --> 00:26:19,030
supply becomes the site of gas exchange ุทุจุนู‹ุง ุฅุญู†ุง
277
00:26:19,030 --> 00:26:24,690
ุจู†ุนุฑู ู…ู† ุฎุตุงุฆุต ุงู„ู‚ุฑู†ูŠุฉ ุฅู†ู‡ ู‡ูŠ transparent ูุฏุงูŠู…ู‹ุง
278
00:26:24,690 --> 00:26:30,090
ุบุฐุงุฆู‡ุง ุจูŠูƒูˆู† ู…ู† ูˆูŠู† ุฌุฒุก ู…ู†ู‡ ูƒุจูŠุฑ ู…ู† ุงู„ู‡ูˆุงุก ุงู„ุฌูˆูŠ
279
00:26:30,090 --> 00:26:34,230
ุทูŠุจ ุงู„ุขู† ุงู„ุฅู†ุณุงู† ุฃุบู„ู‚ ุนูŠู†ู‡ ุฒูŠ ููŠ ุญุงู„ุฉ ุงู„ extended
280
00:26:34,230 --> 00:26:39,950
wearุŒ lenses ูƒูŠู ุจุฏู‡ ูŠุนู†ูŠ ุงู„ู‚ุฑู†ูŠุฉ ูƒูŠู ู…ู…ูƒู† ุฃู†ู‡
281
00:26:39,950 --> 00:26:45,660
ุชุชุบุฐู‰ุŸ ูููŠ ุนู†ุฏู†ุง ุงู„ Vascular ุฃูˆ ุงู„ู€ Limbal Vascular
282
00:26:45,660 --> 00:26:50,560
Supply ุทุจุนุง ุงู„ู€ Limbal Vascular ุงุฐุง ุงู„ูˆุธูŠูุฉ ุจุชุงุนุชู‡ุง
283
00:26:50,560 --> 00:26:55,000
ุงูŠุด ุชุนุชุจุฑุŸ ุงู„ู„ูŠ ู‡ูˆ ุงู„ู€ nutrition ูƒุชุฎุฏูŠุฉ ูู‡ุฐู‡
284
00:26:55,000 --> 00:27:00,020
ุจุงู„ุณุงุนุฏ ููŠ ุนู…ู„ูŠุฉ ุงู„ุชุฎุฏูŠุฉ ู„ู…ูŠู†ุŸ ู„ู„ูƒูˆุฑู†ูŠุฉุŒ ุงุฐุง ุงู„ู‡ุฏู
285
00:27:00,020 --> 00:27:06,700
ู…ู†ู‡ุง ุงู„ู…ุณุงุนุฏุฉ ููŠ ุนู…ู„ูŠุฉ ุชุฎุฏูŠุฉ ุงู„ูƒูˆุฑู†ูŠุฉ ูˆู‡ูŠ ุชุนุชุจุฑ
286
00:27:06,700 --> 00:27:14,760
ูŠุนู†ูŠ ู…ูƒุงู† ู…ู‡ู… ููŠ ุนู…ู„ูŠุฉ ุชุจุงุฏู„ ู…ูŠู†ุŸ ุงู„ุฃูƒุณุฌูŠู† Okay ูŠุนู†ูŠ
287
00:27:14,760 --> 00:27:19,540
ู…ู…ูƒู† ูˆุงุญุฏ ู…ู† ุงู„ู…ุฑุถู‰ ูŠุณุฃู„ูƒู… ุงู„ุนุฏุณุงุช ุงู„ู€ extended
288
00:27:19,540 --> 00:27:24,300
wear ุฃูˆ ุงู„ุนุฏุณุงุช ุงู„ู€ daily wear ูƒูŠู ุฃู†ุง ุจุฏูŠ ุงู†ู‡
289
00:27:24,300 --> 00:27:28,480
ุงุชุนุงู…ู„ ู…ุนู‡ุง ูˆ ุฃู†ุง ู†ุงูŠู… ุงู†ู‡ ูƒูŠู ุจุฏูŠ ูŠุตูŠุฑ ู‡ู†ุงูƒ ุงู„ู„ูŠ
290
00:27:28,480 --> 00:27:34,000
ู‡ูˆ ูŠุนู†ูŠ ูƒุชู†ูุณ ู„ู„ูƒูˆุฑู†ูŠุฉ ู…ู† ุฎู„ุงู„ ุงู„ู„ูŠ ู‡ูˆ ุงู„ู€ Limbal vascular
291
00:27:34,000 --> 00:27:39,720
ุฃูˆ ุงู„ู€ Limbal vascular supply hypoxia and
292
00:27:39,720 --> 00:27:44,560
hypercapnia indication for contact lens refitting
293
00:27:44,560 --> 00:27:49,700
ุฃูŠ ู…ุฑูŠุถ ุจูŠุธู‡ุฑ ุนู†ุฏู‡ ุนู„ุงู…ุฉ ุงู„ู€ hypoxia ุฃูˆ ุงู„ู€
294
00:27:49,700 --> 00:27:54,100
hypercapnia ู„ุงุฒู… ุฃู†ุง ุฃุนูŠุฏ ุงูŠู‡ ุงู„ู€ fitting ู„ู„ุนุฏุณุฉ
295
00:27:54,100 --> 00:27:58,820
ุงู„ู„ุงุตู‚ุฉ ู‚ุฏ ุชุณุฃู„ ุทุงู„ุจุฉ ุงู†ู‡ ูƒูŠู ุฃู†ุง ุจุฏูŠ ุงุนุฑู ุงู†ู‡
296
00:27:58,820 --> 00:28:04,230
ู…ุฑูŠุถ ุนู†ุฏู‡ hypoxia ุฃูˆ hypercapnia ู…ู† ุฎู„ุงู„ ุงู„ู€
297
00:28:04,230 --> 00:28:08,070
Corneal Fluorescein Staining ุงู„ู€ Fluorescein Grading
298
00:28:08,070 --> 00:28:11,050
of Corneal Fluorescein Staining ุงู„ู„ูŠ ุฃุฎุฏู†ุงู‡ ููŠ
299
00:28:11,050 --> 00:28:15,670
ุงู„ู…ุนู…ู„ ุงู„ุฃูˆู„ ู„ุฐู„ูƒ ู‡ูŠ ุฃู‡ู…ูŠุฉ ู…ูŠู†ุŸ ุงู„ู€ Corneal
300
00:28:15,670 --> 00:28:19,170
Fluorescein Staining grade 0ุŒ no staining of the
301
00:28:19,170 --> 00:28:23,390
corneal epitheliaุŒ grade 1ุŒ ู‡ูŠูƒูˆู† less than 1 over
302
00:28:23,390 --> 00:28:27,550
3 of the corneal fluorescein stainingุŒ ูˆ grade 2 ูˆ
303
00:28:27,550 --> 00:28:28,510
grade 3
304
00:28:33,440 --> 00:28:39,440
Reduced Epithelial Aerobic Metabolism ุงู„ุขู† ู…ุง ู‡ูŠ
305
00:28:39,440 --> 00:28:45,200
ุงู„ุชุบูŠุฑุงุช ุงู„ููŠุณูŠูˆู„ูˆุฌูŠุฉ ุงู„ู„ูŠ ุจุชุญุฏุซ ู„ู€ Corneal
306
00:28:45,200 --> 00:28:49,720
Epithelium ูˆุงู„ู„ูŠ ู„ุงุฒู… ุฃู†ุง ูƒู€ practitioner ุฃู† ุงุนู…ู„
307
00:28:49,720 --> 00:28:55,060
ุนู…ู„ูŠุฉ observation ู…ู„ุงุญุธุฉ ู„ู‡ุง ุนู†ุฏู…ุง ุงู„ู…ุฑูŠุถ ูŠุฑุชุฏูŠ
308
00:28:55,060 --> 00:28:56,860
ุงู„ุนุฏุณุฉ ุงู„ู„ุงุตู‚ุฉ
309
00:29:00,570 --> 00:29:06,250
Number one reduction in mitotic cell activity ุงุญู†ุง
310
00:29:06,250 --> 00:29:12,130
ุจู†ุนุฑู ุงู† ููŠ ู‡ู†ุงูƒ ู†ู…ูˆ ุฃูˆ ุชูƒุงุซุฑ ู„ุฎู„ุงูŠุง ุงู„ู€ corneal
311
00:29:12,130 --> 00:29:17,350
epithelium ุงู„ุดุฎุต ู„ู…ุง ุจูŠุฑุชุฏูŠ ุงู„ุนุฏุณุฉ ุงู„ู„ุงุตู‚ุฉ ุงู„ู„ูŠู†ุฉ
312
00:29:17,350 --> 00:29:22,190
ู…ู…ูƒู† ุงู†ู‡ ูŠู‚ู„ู„ ู…ู† ุงู„ู€ mitotic ุงู„ุงู†ู‚ุณุงู… ู„ู‡ุฐู‡ ุงู„ุฎู„ุงูŠุง
313
00:29:22,190 --> 00:29:28,900
ุฒูŠ ุจุงู„ุถุจุท ู„ู…ุง ุดุฎุต ุจูŠุนู…ู„ ุนู…ู„ูŠุฉ ุงู„ู„ูŠุฒูƒ ุฃูˆู„ ุญุงุฌุฉ ุจู†ู‚ูˆู„ู‡
314
00:29:28,900 --> 00:29:33,820
ุงู†ู‡ ู…ู† ุงู„ู€ complications ุงู„ู‡ุง ู‡ุชุนู…ู„ ุชู‚ู„ูŠู„ ููŠ ุงู†ู‚ุณุงู…
315
00:29:33,820 --> 00:29:40,440
ุงูŠู‡ ุงู„ุฎู„ุงูŠุง ุงู„ุชูุงุนู„ูŠุฉ ุฃูŠ ุจู…ุนู†ู‰ ุงู„ู€ corneal
316
00:29:40,440 --> 00:29:41,620
epithelium cells
317
00:29:47,430 --> 00:29:52,950
ุงู„ุฑูˆุงุจุท ู…ุง ุจูŠู† ู‡ุฐู‡ ุงู„ุฎู„ุงูŠุง ุงุดู…ุงู„ู‡ุง ู‡ุชู‚ู„ ุฃูˆ ู‡ุชู†ูƒุณุฑ
318
00:29:52,950 --> 00:29:58,670
ูŠุนู†ูŠ ู…ุง ู‡ูŠุตูŠุฑ ุงู† ููŠ ู‡ู†ุงูƒ good junction ู…ุง ุจูŠู† ู‡ุฐู‡
319
00:29:58,670 --> 00:29:59,590
ุงู„ุฑูˆุงุจุท
320
00:30:02,860 --> 00:30:08,400
decrease in numbers of ุทุจุนุง ูƒูŠู ู‡ุฐูŠ ุงู„ู„ูŠ ู‡ูˆ ู‡ูŠุตูŠุฑ
321
00:30:08,400 --> 00:30:14,060
ุงู„ู„ูŠ ู‡ูˆ ุชู‚ู„ูŠู„ ููŠ ุนุฏุฏ ุงู„ู€ hemidesmosomes ุงู„ุงู† ุงูˆู„ ุดุบู„ุฉ
322
00:30:14,060 --> 00:30:18,720
ุจุชู„ุงู‚ูŠ ุงู„ุดุฎุต ุงู„ู„ูŠ ุจูŠุนู…ู„ ุนู…ู„ูŠุฉ ุงู„ู„ูŠุฒูƒ ุจู†ู‚ูˆู„ู‡ ุฏุงุฆู…ุง
323
00:30:18,720 --> 00:30:23,100
ุบุทู‰ ุนูŠู†ูƒ ุตุญุŸ ุนุดุงู† ูŠุตูŠุฑ regeneration ู„ู…ูŠู†ุŸ ู„ู„ู€
324
00:30:23,100 --> 00:30:26,860
corneal epithelia ู„ูƒู† ุงู„ุณุจุจ ุงู„ุฑุฆูŠุณูŠ ููŠ ุนู…ู„ูŠุฉ
325
00:30:26,860 --> 00:30:32,890
ุงู„ุชุบุทูŠุฉ ุงู†ู‡ ู…ุงูŠุตูŠุฑ ู‡ู†ุงูƒ ุงูŠู‡ุŸ infection ู„ู„ู…ุฑูŠุถ ุงุฐุง
326
00:30:32,890 --> 00:30:37,610
ุฃู‡ู… ุดูŠุก ุงู„ู„ูŠ ู‡ูˆ ุนู…ู„ูŠุฉ ุงู„ุฎูˆู ู…ู† ุงู„ู€ infection ูู…ู…ูƒู†
327
00:30:37,610 --> 00:30:41,750
ู‡ุฐุง ูŠู‚ู„ู„ ู…ู† ู…ูŠู†ุŸ ู…ู† ุงู„ู€ hemidesmosomes ุงู„ู„ูŠ ู‡ูˆ ุนู…ู„ูŠุฉ
328
00:30:41,750 --> 00:30:47,270
ุงู„ู€ infection ู„ูƒู† ุงุฑุชุฏุงุก ุงู„ุนุฏุณุฉ ุงู„ู„ุงุตู‚ุฉ ุงุดู…ุงู„ู‡ ุจูŠุฒูˆุฏ
329
00:30:47,270 --> 00:30:48,570
ุญุฏูˆุซ ุงู„ู€ infection
330
00:30:52,640 --> 00:30:57,140
Expiration of corneal epithelial cells ุฃูŠุถู‹ุง ู‡ูŠุฒูˆุฏ
331
00:30:57,140 --> 00:31:01,520
ู…ู† ุงูŠุดุŸ ู…ู† ุงู†ู‚ุณุงู… ุงู„ู€ corneal epithelia ุนู…ู„ูŠุฉ
332
00:31:01,520 --> 00:31:06,460
ุงู„ุงู†ูุตุงู„ ู„ู‡ุฐู‡ ุงู„ุฎู„ุงูŠุง ุฃูŠุถู‹ุง ุจูŠุฒูŠุฏ ุทุจุนุง ูŠุง ุฌู…ุงุนุฉ
333
00:31:06,460 --> 00:31:10,340
ูƒู„ ู‡ุฐู‡ ุงู„ู€ science ูƒูŠู ุจุชู… ุงู„ุงูƒุชุดุงู ุนู†ู‡ุงุŸ ู‡ุฐู‡ ูƒู„ู‡ุง
334
00:31:10,340 --> 00:31:13,780
ู†ุธุฑูŠุฉ ู…ู† ุงู„ู€ corneal fluorescein staining
335
00:31:17,560 --> 00:31:23,000
The surface cells ุฎู„ุงูŠุง ุงู„ุณุทุญ may become ุฑุจู…ุง ุชุตุจุญ
336
00:31:23,000 --> 00:31:27,500
more fragile ู‡ุดุฉ and there may be a slight
337
00:31:27,500 --> 00:31:31,500
epithelial thinning ูˆุทุจู‚ุฉ ุงู„ู€ epithelium ู…ู…ูƒู† ุงู†ู‡
338
00:31:31,500 --> 00:31:36,720
ุชุตูŠุฑ ู†ุญูŠูุฉุŒ ู†ุชูŠุฌุฉ ุงู„ู„ูŠ ู‡ูˆ ู‚ุฏ ูŠูƒูˆู† ุงู„ู€ infection
339
00:31:36,720 --> 00:31:40,600
ุงู„ู„ูŠ ุงุชุนุฑุถ ู„ู‡ุง ุงู„ู€ corneal epithelium ููŠ ุจุนุถ
340
00:31:40,600 --> 00:31:47,700
ุงู„ุฃุญูŠุงู† A clinical manifestationุŒ ุงุฐุง ุนู…ู„ูŠุฉ ุงู„ูƒุดู
341
00:31:47,700 --> 00:31:52,800
ุนู†ู‡ุง ู„ู„ู€ hypoxia ุฃูˆ ุงู„ู€ hypercapnia ู…ู† ุฎู„ุงู„ ุงู„ู€
342
00:31:52,800 --> 00:32:02,520
fluorescein ุฃูˆ ุงู„ู€ corneal fluorescein staining ุทุจุนุง
343
00:32:02,520 --> 00:32:09,930
ุงู„ููŠุฌุฑ ู‡ุฐู‡ ุจุชูˆุถุญ ู…ุฌู…ูˆุนุฉ ู…ู† ุงู„ู€ clinical signs ุงู„ู„ูŠ
344
00:32:09,930 --> 00:32:16,410
ุจุชุธู‡ุฑ ุนู†ุฏ ุงู„ู…ุฑูŠุถ ูˆุนู†ุฏู‡ุง ู„ุงุฒู… ุงู„ู…ุฑูŠุถ ูŠูˆู‚ู ู…ู†
345
00:32:16,410 --> 00:32:21,470
ุงุฑุชุฏุงุก ุงู„ุนุฏุณุฉ ุงู„ู„ุงุตู‚ุฉ ุทุจุนุง ูƒู„ู‡ุง ุงู„ู€ ocular
346
00:32:21,470 --> 00:32:24,830
manifestation ุงู„ู„ูŠ ู„ู‡ุง ุฃูˆ ุงู„ู€ clinical diagnosis
347
00:32:24,830 --> 00:32:28,690
test ุงู„ู„ูŠ ุฎุงุต ููŠู‡ุง ุจุชุชู… ุงู„ุงูƒุชุดุงู ู…ู† ุฎู„ุงู„ ุงู„ู€
348
00:32:28,690 --> 00:32:30,450
corneal fluorescein scanning
349
00:32:34,190 --> 00:32:37,950
ู†ุชูˆู‚ู ุงู† ุดุงุก ุงู„ู„ู‡ ุนู†ุฏ ุงู„ู€ signs of reduced
350
00:32:37,950 --> 00:32:42,950
epithelial aerobic metabolism ููŠ ุงู„ู…ุญุงุถุฑุฉ ุงู„ู‚ุงุฏู…ุฉ
351
00:32:42,950 --> 00:32:44,470
ุงู† ุดุงุก ุงู„ู„ู‡ ู†ูƒู…ู„