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ุจุณู
ุงููู ุงูุฑุญู
ู ุงูุฑุญูู
ุงูุณูุงู
ุนูููู
ูุฑุญู
ุฉ ุงููู
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ูุจุฑูุงุชู and a very good morning to all of you.
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00:00:28,390 --> 00:00:34,350
ูู ุงูู
ุญุงุถุฑุฉ ุงูุณุงุจูุฉุ ุชูุงูููุง ู
ูููู
ุงูู intra pupillary
4
00:00:34,350 --> 00:00:41,830
distanceุ ูุนุฑููุง ุฃู ุงูู IPD is defined as the
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00:00:41,830 --> 00:00:47,810
distance between one pupil and another pupil
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00:00:47,810 --> 00:00:53,970
from the other eye. ูุงูุชูููุง ู
ู ู
ูุถูุน ุงูู common
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difficulties and their solution. ุฃุฎุฐูุง ุงูู
ุดููุฉ
8
00:01:00,630 --> 00:01:06,150
ุงูุฃููู: ุฅุฐุง ูุงู ุงูู
ุฑูุถุ ุฃู ุนููุงูุ ุงูู examiner ููุณ ูุฏูู
9
00:01:06,150 --> 00:01:11,350
ูุฏุฑุฉ ุนูู ุฅุบูุงู one eye. ุงูู
ุดููุฉ ุงูุซุงููุฉ
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ุฃูุถุงูุ ู
ุง ูู ุงูู
ุดููุฉ ุงูุซุงููุฉุ ุฃููุ ูุถูุฉ ุฃู
11
00:01:18,600 --> 00:01:23,540
ุงูู patient ูุง ูุณุชุทูุน ุฅุบูุงู one eyeุ ุจููู
ุง
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ุซุงููุงูุ ูู ูุงู ุงูู examiner ูุฏูู ุถุนู ูู
13
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visual acuityุ ุฃู ู
ุง ูุณู
ู ุชุนุทูู ูู ุญุฏุฉ ุงูุฅุจุตุงุฑ ุงูุฎุงุตุฉ
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00:01:32,500 --> 00:01:38,520
ุจุงูู
ุฑูุถ. ุงูููู
ุ ู
ูุถูุนูุง ูู strabismicุ ูุนูู
15
00:01:38,520 --> 00:01:46,150
ุจู
ุนูู ุฃู ุงูู examiner ูุฏููุ ุฃู ููุงูุ ู
ุง ูุณู
ู
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ุญูู ู
ูุฌูุฏ ูู ุงูุนูู.
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ุฏุงุฆู
ุงู ูุง ุฌู
ุงุนุฉุ ุงูู
ุฑูุถ ุนูุฏู
ุง ูููู ูุฏูู ุฃู ููุน ู
ู
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ุงูุญููุ ุณูุงุก ูุงู ุญููุงู ููุฏุงุฎู (ุฅูุฒูุชุฑูุจูุง)ุ ุฃู ูุงู ุญููุงู
19
00:02:12,350 --> 00:02:17,230
ููุฎุงุฑุฌ (ุฅูุฒูุชุฑูุจูุง)ุ ูุฅู
ุง ูุฒูุฏ ุฃู ูููู ู
ู ููู
ุฉ
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ุงูู intra pupillary distance. ูุฃู ูู ูุงูุช ุงูุนููุงู
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ููุฏูุงุฎูุ ู
ุงุฐุง ุณูุญุฏุซ ูููู
ุฉ ุงูู IBDุ ุชููุ ุฃููุณ ูุฐููุ ูู
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ูุงูุช ุงูุนููุงู ููุฎุงุฑุฌุ ุณุชุฒูุฏ ููู
ุฉ ุงูู IPD.
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ูุฅู
ุง ุณุชููู ููู
ุฉ ู
ุตุทูุนุฉุ ุณูุงุก
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ูุงูุช ุจุฏุฑุฌุงุช ุนุงููุฉ ุฃู ุจุฏุฑุฌุงุช ู
ูุฎูุถุฉ.
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ููุญุตูู ุนูู ูุฑุงุกุฉ ุตุญูุญุฉ. ุฅุฐูุ ูุญู
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ุงูุขู ูุฑูุฏ ุงูููู
ุฉ ุงูุตุญูุญุฉ ูู IPD ููุฐุง ุงูุดุฎุต. ููู ูู
ูููู
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00:02:54,080 --> 00:02:59,860
ุญุณุงุจู ุจุจุณุงุทุฉุ simply cover the subject's eye
28
00:02:59,860 --> 00:03:05,480
not being observed. ุจุจุณุงุทุฉุ ู
ุงุฐุง ุณููุนูุ ุณูุบุทู ุงูุนูู
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00:03:05,480 --> 00:03:10,220
ุงูุชู ูุง ููุญุตูุง. ุฃู ุฃู ุงูุนูู ุงูุชู ููุญุตูุง
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00:03:10,220 --> 00:03:16,090
ุณุชุธู ูู ุงูุชู ุชููู
ุจุนู
ููุฉ ุงูุชุซุจูุช ู
ุน
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00:03:16,090 --> 00:03:20,030
ุงูู examinerุ ูุงูุนูู ุบูุฑ ุงูู
ูุญูุตุฉุ ุณูููู
ุจุนู
ู
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ู
ุง ูุณู
ู occluderุ ููู ุชุบุทูุฉ ุฃู cover.
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00:03:23,190 --> 00:03:27,790
ูู ููู
ุชู
ุ ุจู
ุนูู ุขุฎุฑุ ุฃู ุงูู
ุฑูุถ ุณูุตุจุญ
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00:03:27,790 --> 00:03:35,020
ุจุนูู ูุงุญุฏุฉ. this ensures that the
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00:03:35,020 --> 00:03:39,160
subject is fixating with the eye under observation.
36
00:03:39,160 --> 00:03:45,140
ูุฐุง ูุถู
ู ุฃู ุงูู
ุฑูุถ ุณูุธูู ูููู
ุจุนู
ููุฉ
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00:03:45,140 --> 00:03:49,480
ุงูุชุซุจูุช ุจุนูู ูุงุญุฏุฉุ ุฃู ูู ุงูุนูู ุงูุชู ูู under
38
00:03:49,480 --> 00:03:53,500
observationุ ุฃู ุงูุนูู ุงูุชู ูู ุชุญุช ุงููุญุตุ ุงูุชู ูุญู
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00:03:53,500 --> 00:03:54,300
ูุนู
ู ุนูููุง.
40
00:03:58,710 --> 00:04:03,830
ููุฐู ุงูุนูู ูู ูุญุฏุซ ููุง ุฃู ุงูุญุฑุงู ููุฏุงุฎู ุฃู ุงูุฎุงุฑุฌ
41
00:04:03,830 --> 00:04:05,630
ุฃู ุงูุฃุนูู ุฃู ุงูุฃุณูู.
42
00:04:09,530 --> 00:04:13,650
ูู ุจุนุถ ุงูุญุงูุงุชุ
43
00:04:13,650 --> 00:04:20,470
ุญูุซ ุชุชุญุฑู ุฅุญุฏู ุงูุนูููู ุจุงุณุชู
ุฑุงุฑ ููุฎุงุฑุฌุ ูุนูู ูู
44
00:04:20,470 --> 00:04:25,130
ุจุนุถ ุงูุญุงูุงุชุ ุฃู ุฒุงููุฉ ุงูุญูู ุฃู ุงูุญูู ุฏุงุฆู
ุงู ูููู
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00:04:25,130 --> 00:04:30,530
ุจุงุชุฌุงู ู
ุนููุ ุซุงุจุช constantlyุ ูุง ูุชุบูุฑุ ุฃู ุบูุฑ
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00:04:30,530 --> 00:04:31,330
ู
ุชูุทุน.
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00:04:36,260 --> 00:04:43,080
Okay. ุฅุฐุงูุ ูู ุจุนุถ ุงูุญุงูุงุช ุญูุซ ุชุชุญุฑู ุฅุญุฏู ุงูุนูููู ููุฎุงุฑุฌ
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00:04:43,080 --> 00:04:48,890
ุจุงุณุชู
ุฑุงุฑุ ุฅุฐุงู ุฒุงููุฉ ุงูุญูู ุณุชุธู ุจุงุชุฌุงู ู
ุนูู. The
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00:04:48,890 --> 00:04:52,730
prescribing doctor may determine, or the
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00:04:52,730 --> 00:04:56,730
prescribing optometrist may determine that the
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00:04:56,730 --> 00:05:02,170
wearer is better served if the lenses are centered
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00:05:02,170 --> 00:05:07,430
in front of the pupils. ุงูุขูุ ุฃุฎุตุงุฆู ุงูุจุตุฑูุงุช ู
ุงุฐุง ุณููุนูุ ุณููุนู
53
00:05:07,430 --> 00:05:14,470
ุฅุฒุงุญุฉ ููุฐู ุงูุนููุ ุจุญูุซ ุชุตุจุญ ุงูุนูู
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00:05:14,470 --> 00:05:18,630
ู
ุง ูุณู
ู Decentrationุ ูุชุฎุฑุฌ ู
ู ุฃููุ ู
ู
55
00:05:18,630 --> 00:05:23,990
ุงูู optical center of a lens. ู
ุฑุฉ ุซุงููุฉุ ุฅุฐุง ูุงูุช ุงูุนูู
56
00:05:23,990 --> 00:05:30,650
ููุง ุญูู ุฏุงุฆู
ููุฏุงุฎู ุฃู ููุฎุงุฑุฌุ ุงูุขูุ ูุธููุฉ ุฃุฎุตุงุฆู
57
00:05:30,650 --> 00:05:35,250
ุงูุจุตุฑูุงุช ู
ุงุฐุง ููุนูุ Decentrationุ ุฅุฒุงุญุฉุ ูู
ูุ ููู
58
00:05:35,250 --> 00:05:39,670
optical center of a lensุ ุจุญูุซ ุชุตุจุญ ุงูุนูู
59
00:05:39,670 --> 00:05:45,020
ู
ุณุชููู
ุฉุ ุฏูู ุฃู ุญููุ ุฃู ุฅุฐุง
60
00:05:45,020 --> 00:05:49,860
ูุงูุช ุฒุงููุฉ ุงูุงูุญุฑุงู angle of deviation ุนุงููุฉ ุฌุฏุงูุ ุณููุนู
61
00:05:49,860 --> 00:05:52,060
ู
ุง ูุณู
ู ุชูููู ููุฐู ุงูุฒุงููุฉ.
62
00:05:55,010 --> 00:06:00,590
This will require that a separate measurement be taken
63
00:06:00,590 --> 00:06:06,090
for each eye. ููู ูู
ูู ุฅุฌุฑุงุก ูุฐุง ุงูุนู
ูุ ู
ู ุฎูุงู ุฃู
64
00:06:06,090 --> 00:06:11,770
ุฃูุง ุขุฎุฐ ููู
ุฉ ุงูู IBD ููู ุนูู ุนูู ุญุฏุฉุ ูุง ูููู
ุจุนู
ู
65
00:06:11,770 --> 00:06:16,510
ููุงุณ ุซูุงุฆู IBDุ ุจู ูููู
ุจุนู
ู ู
ุง ูุณู
ูู monocular
66
00:06:16,510 --> 00:06:17,250
IBD.
67
00:06:22,940 --> 00:06:30,240
ุชู
ุงู
ุ ุฃู monocular IBD. One measurement will then be
68
00:06:30,240 --> 00:06:34,600
considerably larger than the other. ุฃููุฏุ ุงูุขูุ ุนูุฏู
ุง
69
00:06:34,600 --> 00:06:41,000
ุฃููู
ุจุนู
ู ููุงุณ monocular IBDุ ุณูููู ูุฏู ููู
ุฉ
70
00:06:41,000 --> 00:06:46,530
ูู IBDุ ููุนูู ุงููู
ูู ู
ุฎุชููุฉ
71
00:06:46,530 --> 00:06:50,030
ุงุฎุชูุงูุงู ูุจูุฑุงู ุนู ุงูุนูู ุงููุณุฑูุ ุฃููุณ ูุฐููุ ูู ูุงู
72
00:06:50,030 --> 00:06:53,930
ุงูู
ุฑูุถ ูุฏูู ุฒุงููุฉ ุญูู ููุฏุงุฎู ูู ุงูุนูู
73
00:06:53,930 --> 00:06:58,170
ุงููู
ููุ ุฅุฐุงูุ ุณุชููู ููู
ุฉ ุงูู IBD ู
ุงุฐุงุ ุตุบูุฑุฉุ ู
ูุงุฑูุฉ
74
00:06:58,170 --> 00:07:02,010
ุจุงูุนูู ุงูุฃุฎุฑูุ ููุฐุง ุณูุฌุนู ุงูููุงุณ considerably
75
00:07:02,010 --> 00:07:06,470
ุฃูุจุฑ ู
ู ูุงุญูุฉ ุงูููุงุณุ
76
00:07:06,470 --> 00:07:11,000
ุงูููุงุณ ููู ุนูู. ูุญู ูุชุญุฏุซ ุนู ุงูู
77
00:07:11,000 --> 00:07:19,380
strabismic subjectุ ุงูุญุงูุฉ ุงูุซุงูุซุฉุ ุชู
ุงู
ุ
78
00:07:19,380 --> 00:07:25,860
ููุ ู
ุซูุงูุ ูุฏููุง ุงูุขู ุญุงูุฉ ุชุณู
ู turn off lightุ okayุ
79
00:07:25,860 --> 00:07:29,090
ูุฐู ุงูุญุงูุฉ ูุฏููุง ูู ุงูุนูู ุงููู
ูู. ู
ุง ุงูุนููุ
80
00:07:29,090 --> 00:07:34,790
ุฅูุฒูุชุฑูุจูุงุ ุฃู ุฃู ุงูุนูู ููุฎุงุฑุฌ. ุงูุขูุ
81
00:07:34,790 --> 00:07:39,550
ูุญู ูุฑูุฏ ุงุณุชุฎุฏุงู
ูุธุงุฑุฉ ูุนู
ู
82
00:07:39,550 --> 00:07:43,870
ู
ุงุฐุงุ Decentrationุ ุฅุฒุงุญุฉุ ุจุญูุซ ุชุนุฏู ุงูุนูู ูู
83
00:07:43,870 --> 00:07:49,390
ุงูู
ูุชุตู. okay. ูุจุณุช ุงูุทููุฉ ุงูุขู ูุธุงุฑุฉุ ุฃุตุจุญุช ุงูุนูู
84
00:07:49,390 --> 00:07:53,350
ุชูุฑูุจุงู ู
ุงุฐุงุ ู
ุณุชููู
ุฉ. ู
ู ุงูุฐู ุญู ูุฐู ุงูู
ุดููุฉุ ุงูู
85
00:07:53,350 --> 00:07:57,190
Decentration. ู
ู ูุงู
ุจูุฐุงุ ุฃุฎุตุงุฆู ุงูุจุตุฑูุงุช ู
ู ุฎูุงู
86
00:07:57,190 --> 00:08:01,730
ุชุบููุฑ ุงูู
87
00:08:01,730 --> 00:08:04,890
intra pupillary distance ุจูู ุงูุนูููู.
88
00:08:04,890 --> 00:08:06,170
ุชู
ุงู
ุ
89
00:08:08,950 --> 00:08:14,350
ุทูุจุ subject is an uncooperative child. ุงูุขูุ ูู ูุงู
90
00:08:14,350 --> 00:08:18,910
ุงูุทูู ุบูุฑ ู
ุชุนุงููุ ูุฏุงุฆู
ุงู ุงูุฃุทูุงู ูู ู
ุฌุชู
ุนูุง ุบูุฑ
91
00:08:18,910 --> 00:08:23,530
ู
ุชุนุงููููุ ูุนูู ููุงู ุตุนูุจุฉ ูู ุฃุฎุฐ ููู
ุฉ ุงูู IBD.
92
00:08:23,530 --> 00:08:29,970
If the subject is young or uncooperative, making
93
00:08:29,970 --> 00:08:35,790
normal IBD measurements impossible. ุฅุฐุงูุ ููุง ุณูููู
94
00:08:35,790 --> 00:08:43,570
ููุงุณ ููู
ุฉ ุงูู IBD ู
ุงุฐุงุ ุตุนุจุงู ุฌุฏุงู ุฃู ู
ุณุชุญููุงู. The
95
00:08:43,570 --> 00:08:48,210
dispenser may have to take a canvass measurement. ูุนูู ูุฃุฎุฐ ู
ู ุงูู lateral canvass ุฅูู ุงูู
96
00:08:48,210 --> 00:08:51,990
medial canvass. ููู
ุฉ ู
ููุ ุงูู IBD. ูู ุชุชุจุนูู ู
ุนูุ ูุฃุฎุฐ
97
00:08:51,990 --> 00:08:57,770
ู
ู ุงูู lateral canvass ุฅูู ุงูู medial canvass.
98
00:08:57,770 --> 00:09:00,830
ู
ู ุงูุฒุงููุฉ ุงูุฎุงุฑุฌูุฉ ุฅูู ุงูุฒุงููุฉ ุงูุฏุงุฎููุฉ.
99
00:09:03,270 --> 00:09:08,190
This is done by measuring from the outer canthus
100
00:09:08,190 --> 00:09:19,010
ูููุฑุถุ ู
ุซูุงูุ ููุนูู ุงููู
ููุ to the inner canthus
101
00:09:19,010 --> 00:09:26,610
of the other eyeุ ุฃู ุงูุนูู ุงููุณุฑูุ ูููู
102
00:09:26,610 --> 00:09:31,770
ุฃูู ุงูู
ุดููุฉุ unfortunatelyุ ูุณูุก ุงูุญุธุ This
103
00:09:31,770 --> 00:09:36,810
measurement is not entirely exactุ ููุณ ุจุงูุถุจุท
104
00:09:36,810 --> 00:09:42,310
ุฏูููุงู ุฌุฏุงูุ ุชู
ุงู
ุ Since the inner
105
00:09:42,310 --> 00:09:46,950
canthi of the eyes encroach farther across the
106
00:09:46,950 --> 00:09:51,730
sclera with younger children. ูุนุฑู ุฃู ุงูุฃุทูุงู ุฏุงุฆู
ุงู
107
00:09:52,510 --> 00:09:57,390
ูููููู ูู... ูุงูุตูููููุ ุชุฌุฏ ูู
108
00:09:57,390 --> 00:10:01,490
ุงูู sclera ุฃู ุงูุตูุจุฉ ุฏุงุฎูุฉ ููุฏุงุฎูุ ุจุญูุซ ุฃูุช ูุณุช
109
00:10:01,490 --> 00:10:06,390
ูุงุฏุฑุงู ุนูู ุฑุคูุฉ ุงูู canthus. ููุงุ ูุญุชุงุฌ ุฅูู
110
00:10:06,390 --> 00:10:10,790
ููุงุณ ุบูุฑ ุฏูููุ ุฃู ู
ุง ูุณู
ูู inaccurate
111
00:10:10,790 --> 00:10:14,530
measurementุ ุฃู ู
ุง ูุณู
ู not
112
00:10:14,530 --> 00:10:17,890
entirely exactุ ุงูููู
ุฉ ููุณุช ุจุงูุถุจุท
113
00:10:17,890 --> 00:10:23,240
ุฏูููุฉ. ุฌุฆุช ููู
ุจุตูุฑุฉ ููุฐุง ุงูู
ูุถูุนุ ูุฐูุ ุชุฑูู
114
00:10:23,240 --> 00:10:26,620
ููุง
115
00:10:26,620 --> 00:10:34,700
ููุงุ ุงูุตูุจุฉุ ุฃู ุงูู scleraุ ุบูุฑ ุธุงูุฑุฉุ ูู
ุงุฐุงุ ูุฃู ูู
116
00:10:34,700 --> 00:10:39,080
ุนูู ุชุฏุฎู ููุฏุงุฎู. ูุฐุง ุงูููุน ูุณู
ูู
117
00:10:39,080 --> 00:10:44,830
pseudoesotropiaุ ุฃู ู
ุง ูุณู
ู pseudo
118
00:10:44,830 --> 00:10:49,850
squintุ ูุธูุฑ ูููุงุณ ููุฃูู ุญููุ ูููู
119
00:10:49,850 --> 00:10:53,810
ู
ุน ุชูุฏู
ุงูุนู
ุฑุ ูุฎุชููุ ุฃู
120
00:10:53,810 --> 00:10:58,590
ูุฒูู ู
ุน ุชูุฏู
ุงูุนู
ุฑ. ุทุจุนุงูุ
121
00:10:58,590 --> 00:11:03,490
encroach farther across the scleraุ ุงูู sclera ุบูุฑ
122
00:11:03,490 --> 00:11:08,350
ุธุงูุฑุฉุ ุชุฎุชููุ ููุง ุฃุณุชุทูุน ุฅูุฌุงุฏ
123
00:11:08,350 --> 00:11:13,070
ุงูููู
ุฉ ุงูู
ูุงุณุจุฉ ููู IPD. ูุฐุง ู
ุง ููุนูู ูุง
124
00:11:13,070 --> 00:11:20,830
ุณุงุฏุฉุ Inaccurate measurement of ุงูู IPDุ ุชู
ุงู
ุ
125
00:11:20,830 --> 00:11:26,350
ุฃูู ูุง ุชููู ููู
ุฉ ุงูู IPD ุฏูููุฉ. ูุนููุ ุงูุขูุ
126
00:11:26,350 --> 00:11:29,910
ุนูุฏู
ุง ูููู ูุฏููุง ุทูู ูุฏูู pseudosquintุ ูู
ุง ูู
127
00:11:29,910 --> 00:11:33,850
ูุฐู ุงูุญุงูุฉุ ู
ู ุงูุตุนุจ ุฃู ุฃููู
ุจุนู
ู monocular PDุ
128
00:11:33,850 --> 00:11:41,610
ูุฃูู ุณูุนุทููู ููู
ุฉ ุบูุฑ ุตุญูุญุฉ ูู PDุ ุฎุงุตุฉู
129
00:11:41,610 --> 00:11:45,850
ูู ุงุณุชุฎุฏู
ูุง ู
ุงุฐุงุ ุงูู
ุณุทุฑุฉ ุงููุฏููุฉุ ุงูู manual
130
00:11:45,850 --> 00:11:46,650
rule.
131
00:11:52,480 --> 00:11:57,400
ุฎุทูุงุช ููุงุณ ุงูู
ุณุงูุฉ ุงูุจูููุฉ (BD). ูุฐู
132
00:11:57,400 --> 00:12:01,940
ู
ุฑุจุท ุงููุฑุณุ ููู ุงูุฎุทูุงุช ูู ุนู
ููุฉ
133
00:12:01,940 --> 00:12:08,660
ููุงุณ ุงูู IBDุ ุงูู
ุณุงูุฉ ุงูุจูููุฉุ ุฃููุงูุ ุงูู dispenser
134
00:12:08,660 --> 00:12:14,600
ูุถุน ุงูู
ุณุทุฑุฉ ุนูู ู
ุณุงูุฉ 40 ุณู
ุ ูุฌุจ ุฃู ุชููู ุนูู ู
ุณุงูุฉ 40
135
00:12:14,600 --> 00:12:20,020
ุณู
ุจูู ุงูู
ุฑูุถ ูุงููุญุตุ ุฃู 16
136
00:12:20,020 --> 00:12:25,770
ุจูุตุฉ. Okay. ูุฐู ุงูู
ุณุงูุฉ ุชู
ุงู
ุงู ุงูุชู ุชููู
ูู ุจูุง
137
00:12:25,770 --> 00:12:30,350
ุชูุฑูุจุงูุ ุงุนุชู
ุงุฏุงู ุนูู written scope. okay. ุชูุฑูุจุงู.
138
00:12:30,350 --> 00:12:36,950
ุงูู dispenser ูุบูู ุงูุนูู ุงููู
ูู. ุณูุบูู ุงูุนูู
139
00:12:36,950 --> 00:12:45,590
ุงููู
ูู. Subject ูุซุจุช ูุธุฑู ุนูู ุนูู ุงูู dispenser ุงููุณุฑู. ุฅุฐุงู
140
00:12:45,590 --> 00:12:50,950
ุงูู
ุฑูุถ ุณููุซุจุช ูุธุฑู ุนูู ุงูุนูู ุงูู
ูุชูุญุฉุ ุฃู
141
00:12:50,950 --> 00:12:57,390
ุงูุนูู ุงููุณุฑู. ุชู
ุงู
ุ ุงูู dispenser ูุถุน ููุทุฉ ุงูุตูุฑ
142
00:12:57,390 --> 00:13:01,910
ุนูู ุงูุตูุฑ. ุงูุขูุ ุฃูุช ุณุชุถุน ุญุงูุฉ ุงูู
ุณุทุฑุฉ ุฃู ููู
ุฉ ุงูุตูุฑ
143
00:13:01,910 --> 00:13:08,170
ุนูู ุฃููุ ุนูู ู
ุฑูุฒ ุงูุจุคุจุคุ okayุ on
144
00:13:08,170 --> 00:13:12,820
ุนูู ุงูู
ุฑูุถ ุงููู
ููุ ุนูู ู
ุฑูุฒ ุงูุจุคุจุค. Left
145
00:13:12,820 --> 00:13:18,020
Pupillary Border ุฃู Left Limbus. ุงูุขูุ ุงูุญุงูุฉ ุงูุฃุฎุฑู...
146
00:13:18,020 --> 00:13:22,660
ุงูุฌูุฉ ุงูุฃุฎุฑู ููู
ุณุทุฑุฉุ ุณุชุถุนูุง
147
00:13:22,660 --> 00:13:28,880
ุนูู ุญุงูุฉ ุงูููู
ุจูุณุ ุชู
ุงู
ุ ุฅุฐุงูุ ูุฏููุง ุฃููุงู
148
00:13:28,880 --> 00:13:31,940
ุงูุญุงูุฉ ุงูุฃูููุ ุณูุถุนูุง ูู ู
ุฑูุฒ
149
00:13:31,940 --> 00:13:36,560
ุงูุจุคุจุคุ ูู ููู
ุชู
ุ ุงูุขูุ ุงูุญุงูุฉ ุงูุซุงููุฉุ ุฃูู ุณูุถุนูุงุ
150
00:13:36,560 --> 00:13:43,510
ุนูู ุญุงูุฉ ุงูููู
ุจูุณ. Dispenser ูุบูู ุงูุนูู ุงููุณุฑูุ ูููุชุญ
151
00:13:43,510 --> 00:13:50,650
ุงูุนูู ุงููู
ูู. ุงูุขูุ ุณูุชุบูุฑ ุงูุนูุณุ ู
ู ุณูุบููุ ูุนู
ุ ู
152
00:13:50,650 --> 00:13:56,490
ุณููุชุญ ู
ูุ ุงูุนูู ุงููู
ูู. Subject ูุซุจุช ูุธุฑู ุนูู ุงูุนูู ุงููู
ููุ
153
00:13:56,490 --> 00:14:02,450
ุฅุฐุงูุ ุงูุขู ุงูู
ุฑูุถ ุณููุซุจุช ูุธุฑู ุนูู ุงูุนูู ุงููู
ูู. ุงูู Dispenser
154
00:14:02,450 --> 00:14:07,970
ููุฑุฃ ู
ู ุงูู
ููุงุณุ ุณููุฑุฃ ู
ุจุงุดุฑุฉูุ
155
00:14:07,970 --> 00:14:12,870
ุงููุฑุงุกุฉ. directly aligned with left pupil center,
156
00:14:13,530 --> 00:14:16,350
left pupillary border or left limbus.
157
00:14:24,620 --> 00:14:28,880
ุงูู dispenser ูุบูู ุงูุนูู ุงููู
ูู ููู
ุฑูุถุ
158
00:14:28,880 --> 00:14:31,720
ููุซุจุช ูุธุฑู ุนูู ุงูุนูู ุงููุณุฑู. ุฃูุง ุณุฃููู
ุจุนู
ููุฉ
159
00:14:31,720 --> 00:14:36,260
ุงูุชุญูู. ููู ูู
ูููู ุงูุชุฃูุฏุ ููุณ ููุฑุฉ ุงูุฎุทูุฉ ุงูุฃููู
160
00:14:36,260 --> 00:14:41,040
ุณูุบูู ุงูุนูู ุงููู
ูู ูููุชุญ ุงููุณุฑู.
161
00:14:42,870 --> 00:14:47,110
ุงูู dispenser ูุชุฃูุฏ ู
ู ุฃู ููุทุฉ ุงูุตูุฑ
162
00:14:47,110 --> 00:14:51,470
ุตุญูุญุฉุ ูุฌุจ ุฃู ุฃุชุฃูุฏ ุฃู ููู
ุฉ ุงูุตูุฑ
163
00:14:51,470 --> 00:14:55,810
ุนูู ู
ุฑูุฒ ุงูุจุคุจุคุ ูุฃููู
164
00:14:55,810 --> 00:14:59,690
ุจุงูุฎุทูุฉ ุงูุซุงููุฉุ ุฃู ูุฃุฎุฐ ุงููุฑุงุกุฉ
165
00:14:59,690 --> 00:15:08,310
ุงูุตุญูุญุฉ ูููู
ุฉ ุงูู IBD. ุฃูุถุงูุ
166
00:15:08,310 --> 00:15:14,080
ุงูุฃุณุจุงุจ ุงูุดุงุฆุนุฉ ููุฃุฎุทุงุกุ ุจู
ุนูู ุงูุฃุณุจุงุจ
167
00:15:14,080 --> 00:15:20,860
ุงูุดุงุฆุนุฉ ููุฎุทุฃ. There are several common
168
00:15:20,860 --> 00:15:27,300
causes of errors inherent in using a PD rule. ูุนููุ
169
00:15:27,300 --> 00:15:31,120
ููุงู ู
ุฌู
ูุนุฉ ู
ู ุงูุฃุฎุทุงุก ุงูุชู ูู
ูู
170
00:15:31,120 --> 00:15:36,360
ุงูุชุนุจูุฑ ุนููุง ุฃุซูุงุก ุฅุฌุฑุงุก ุนู
ููุฉ ุงููุญุต. ุฃููุงูุ
171
00:15:37,320 --> 00:15:41,640
There will be an error in measurement if the
172
00:15:41,640 --> 00:15:47,940
measured BD differs significantly from
173
00:15:47,940 --> 00:15:53,460
the subject's because the lines of sight are not
174
00:15:53,460 --> 00:15:59,120
parallel. ุงูุขูุ ูุง ุฌู
ุงุนุฉุ ุฃูุง ูู examinerุ ูููุฑุถ ุฃู
175
00:15:59,120 --> 00:16:04,440
ููู
ุฉ ุงูู IBD 70ุ ูุงูู patient ููู
ุฉ IBD ูุฏูู ู
ุงุฐุงุ
176
00:16:04,440 --> 00:16:09,380
50ุ ุฅุฐุงู ููุงู ุงุฎุชูุงู ูุงุถุญ ูู ููู
ุฉ ุงูู IBD ุจูู
177
00:16:09,380 --> 00:16:12,380
ุงูู examiner ูุงูู patientุ ูุฐุง ูุฏ ูุคุฏู ุฅูู
178
00:16:12,380 --> 00:16:18,610
ุงูุฎุทุฃ. ูู
ุงุฐุงุ ูุฃู ุงููุฌููู ููุณุง ู
ุชูุงุจููู ุชู
ุงู
ุงูุ
179
00:16:18,610 --> 00:16:21,790
ุชู
ุงู
ุ ุจู
ุนูู ุขุฎุฑุ ุนูุฏู
ุง ุฃุบูู ุงูุนูู ุงููู
ูู
180
00:16:21,790 --> 00:16:26,350
ูุฃูุธุฑ ุจุงูุนูู ุงููุณุฑูุ ุฃู ุงูุนูุณุ ุณูููู
181
00:16:26,350 --> 00:16:31,510
ููุงู ูุณุจุฉ ุฎุทุฃุ ุชู
ุงู
ุ ุทุจุนุงูุ ู
ูุฏุงุฑ ูุฐุง ุงูุฎุทุฃ ุฑุจู
ุง
182
00:16:31,510 --> 00:16:36,070
ูููู ุฏุฑุฌุฉุ ุฃู ู
ูููู
ุชุฑ ูุงุญุฏุ ููุณ ุงุฎุชูุงูุงู ูุจูุฑุงูุ
183
00:1
223
00:20:10,990 --> 00:20:15,170
result if the person measuring ุฃู ุจู
ุนูู ุงู
224
00:20:15,170 --> 00:20:20,010
examiner ุงูุดุฎุต ููุณูุ ุฃูุง ุงููุงุญุตุ ุฑูุญุช ู
ุซูุงู ุบูุฑุช ุงููู
225
00:20:20,010 --> 00:20:24,510
ูู ุงุชุฌุงู ุนูููุ ุฃู ุงููู ูู ููุช ูุฌูู ูู
ูู ุฃู
226
00:20:24,510 --> 00:20:29,750
ุดู
ุงูุ ุจุฑุถู ููุนู
ู ุฎุทุฃ ูู ุงููุฑุงุกุฉ. An error will
227
00:20:29,750 --> 00:20:34,810
result if the person measuring doesn't close or
228
00:20:34,810 --> 00:20:40,320
include one eye. ุงูุขู ูุฃูุช ุจุชูุญุตูุ ููุชุฑุถ ุฃู ุงููุงุญุต
229
00:20:40,320 --> 00:20:45,980
ู
ุบุทุงุด ุนููู ุชู
ุงู
ุงู ุฃุซูุงุก ุงููุญุตุ ูุนูู ุงูุขู ู
ุด ุฃูุง ูุงุฒู
230
00:20:45,980 --> 00:20:50,900
ุฃูู ุญุงุฌุฉ ุฃุนู
ู close the one eyeุ ูุฃุนู
ู the
231
00:20:50,900 --> 00:20:54,820
open the another eye. ุงูุขู ู
ุง ุนู
ูุชุด ุงูุทุฑููุฉ ูุฐูุ ุฑูุญุช
232
00:20:54,820 --> 00:20:58,660
ู
ุจุงุดุฑุฉ ุญุทูุช ุงูู
ุตุฏุฑุ ูุงูุนููุชูู ู
ูุชูุญุชููุ ูุฐุง ุฃูุถุงู
233
00:20:58,660 --> 00:21:05,250
ููุนู
ู ุฅูุดุ ูุณุจุฉ ุฎุทุฃ ุนูุฏ ุงูู ุฃู ูู ุฅุฌุฑุงุก ุงููุญุต. At a
234
00:21:05,250 --> 00:21:11,610
time to ensure sighting from directly in front of
235
00:21:11,610 --> 00:21:15,810
the subject's eye under observation. ูุฐุง ููุถู
ู ุฃู
236
00:21:15,810 --> 00:21:24,110
ุงููุธุฑ ุณูููู ู
ุจุงุดุฑุฉ ุฃู
ุงู
ุงูุนูู ู
ู ุงูู
ุฑูุถุ ุฃู ุงูุนูู
237
00:21:24,110 --> 00:21:31,790
ุงููู ุจุฏู ูุชู
ุฅุฌุฑุงุก ุนู
ููุฉ ุงููุญุต ุนูููุง. The subject may not
238
00:21:31,790 --> 00:21:36,530
look directly at the examiner's pupil. ุงูุขู ุฃูุง ุนู
ูุช
239
00:21:36,530 --> 00:21:41,150
ุงููู ูู ุนู
ููุฉ ุงููุญุตุ ูููุช straightุ ููู ุงูู
ุฑูุถ ุฃุซูุงุก
240
00:21:41,150 --> 00:21:45,590
ุงููุญุต ู
ุง ูุงูุด ุจูุทูุน ุงููู ูู ูู ุงูู
ูุทูุฉ ูุฐูุ ุฃู ู
ุซูุงู
241
00:21:45,590 --> 00:21:50,410
ุงูู attention ุจุชุงุนู ูููู ุฃู ูุชุญุช. Okay, during the
242
00:21:50,410 --> 00:21:54,690
test, which will result in an error. ุฃูุถุงู ูุฐุง ููุนู
ู
243
00:21:54,690 --> 00:21:58,510
ุงููู ูู ูุณุจุฉ ุฎุทุฃ ูู ุงููู ูู ุงููุชูุฌุฉ ุงูููุงุฆูุฉ.
244
00:22:03,370 --> 00:22:10,190
ูุนูุฏ ุงูุขู ูู monocular BD ุฃู ุงูู monocular IBD.
245
00:22:10,190 --> 00:22:17,990
Since faces are not always symmetrical. ุฏุงุฆู
ุงู ูุนูู
246
00:22:17,990 --> 00:22:24,130
ุงููุฌู ุจููููุด ู
ุชู
ุงุซูุ ูุนูู ูู ุจุนุถ ุงูุฃุญูุงู ุฃูู ุจูููู
247
00:22:24,130 --> 00:22:28,730
ููุง ุบุงูุจุงู ุงููุฌู ุบูุฑ ู
ุชู
ุงุซู ุชู
ุงู
ุงู ุจูู ุงููู ูู ุงูู
248
00:22:28,730 --> 00:22:34,180
ุจูู ุงููู ูู ุงูู two eyes. It's often necessary to
249
00:22:34,180 --> 00:22:40,500
specify the BD for each eye independently. ูุนุดุงู ููู
250
00:22:40,500 --> 00:22:45,040
ุฃู ุจุงูุณุจุจ ุงููู ูู ุนุฏู
ุงูุชู
ุงุซูุ ูุงุฒู
ุฃูุง ุฃุนู
ู ููุงุณ
251
00:22:45,040 --> 00:22:50,220
ูููู
ุฉ ุงูู BD ููู ุนูู ุนูู ุญุฏุฉุ ูุนูู independentlyุ ุฃู
252
00:22:50,220 --> 00:22:56,660
ุจู
ุนูู ุงููู ูู ุจุดูู ู
ุณุชูู. ุงููุฏู
253
00:22:56,660 --> 00:23:03,640
ุงูุฃุณุงุณู in taking ูู ุฃุฎุฐ ุงูู BD is to eventually
254
00:23:03,640 --> 00:23:08,920
place the optical centers of the lenses. ุฅุฐู ุนูุฏูุง
255
00:23:08,920 --> 00:23:14,000
ุงููุฏู ุงูุฃุณุงุณู ุฅูู ุฃุฎุฐ ุงูู monocular BDุ ุฅู ูุตู ูู
256
00:23:14,000 --> 00:23:18,320
ุงูู
ุฑุญูุฉ ุงูููุงุฆูุฉ ุฅู ูููู ุงูู pupil ุฃู ุงูู center of
257
00:23:18,320 --> 00:23:23,100
pupil ุฌุงู ูู ู
ูุชุตู ู
ู ุงูู optical center of a lensุ
258
00:23:23,100 --> 00:23:26,620
ูุฐุง ุงููุฏู ุงูุฃุณุงุณู. Directly
259
00:23:28,400 --> 00:23:33,860
in front of the subject's eyes. ุทูุจ ุฅูุด ุงููุฏูุ To
260
00:23:33,860 --> 00:23:39,500
prevent any undesired prismatic effect. ูุนูู ุญุชู
261
00:23:39,500 --> 00:23:45,760
ุงููู ูุชู
ู
ูุน ุฃู ุชุฌูุจ ุฃู ุชุฃุซูุฑ ู
ูุดูุฑู ุบูุฑ ู
ุฑุบูุจ ููู.
262
00:23:48,790 --> 00:23:55,010
ุฅุฐุง ูู
ุช ุจููุงุณ ุฅุญุฏู ุงูุนููู ูุดุฎุตูุฉุ ูุดุฎุตูุฉ
263
00:23:55,010 --> 00:24:02,070
ุดุฎุตูุฉุ ูุฅู ุงูุฌุงูุจ ูู
ุฑูุฒ ุงูุนููู ุงูู
ูุฌูุฏุฉ ููู
264
00:24:02,070 --> 00:24:05,770
ู
ูุงุฌูุฉ ู
ูุงูุ ูู
ูุงู ู
ูุงุฌูุฉ ู
ูุงูุ ุจุดูู ู
ุฑุชุจุท ูู
265
00:24:05,770 --> 00:24:14,570
ุงูุตูุฑุฉุ ูู ุชุชุฌู ู
ู ู
ุฑูุฒ ุงูุนููู ุงูู
ูุฌูุฏุฉ ูููุ ู
ูุงู
266
00:24:14,610 --> 00:24:19,470
ุงูุขู ูู ุฃูุง ู
ุซูุงู ุญุทูุช ุงูู
ุณุทุฑุฉ ูู ู
ูุทูุฉ ุบูุฑ ู
ุฑูุญุฉ
267
00:24:19,470 --> 00:24:24,470
ูู
ูุ ููู
ุฑูุถ. ุงูุขู ุงูู
ุฑูุถ ูู ุฃูุง ุจุฏู ุฃุนู
ูู binocular
268
00:24:24,470 --> 00:24:29,550
BDุ ููููู ูุธุฑู ุจุดูู ุบูุฑ ุณููู
ุ ูุนูู ุจู
ุนูู ุขุฎุฑุ ููููู
269
00:24:29,550 --> 00:24:34,650
ููุงู ุฅุฒุงุญุฉ ููู ูู ุงูุนููุ ุณูุงุก ูุงูุช ูููู
ูู ุฃู
270
00:24:34,650 --> 00:24:39,530
ููุดู
ุงูุ ููุฐุง ููุฃุซุฑ ูู ููู
ุฉ ู
ููุ ุงููุญุตุ ุชู
ุงู
ุ
271
00:24:39,530 --> 00:24:44,750
ูุงูุทุฑููุฉ ุงูุฃุณูู
ุ ูุงูุทุฑููุฉ ุงูุฃู
ุซูุ ูุงูุทุฑููุฉ ุงูุฃุตุญุ ุฃูู
272
00:24:44,750 --> 00:24:49,160
ุฃุนู
ู ุฅูุดุ binocular BD ููู ุนููุ ุจุญูุซ ุฃู ุฃูุง ุฃุนู
ู
273
00:24:49,160 --> 00:24:53,240
fixation ููุนูู ุงูุฃูููุ ูุจุนุฏ ุฐูู ุฃุนู
ู fixation ููุนูู
274
00:24:53,240 --> 00:24:57,560
ุงูุซุงููุฉุ ูุฃุฌูุจ ุงููู ูู ููู
ุฉ ุงูู monocular BD ููู
275
00:24:57,560 --> 00:25:04,260
both eyes. ูู ู
ุซูุงู ุนูุฏูุง ูุฐุง ุนุจุงุฑุฉ ุนู ุงููู ูู ู
ุณุทุฑุฉ
276
00:25:04,260 --> 00:25:10,120
ุชู
ุงู
ุ ุขุฎุฐ ุงููู ูู ุงูู IPDุ ููู
ุชูุง ุฌุฏุนุงู 64. ุฅุฐุง ูุงู ูู
277
00:25:10,120 --> 00:25:15,380
ุนูุฏูุง symmetricalุ ุชู
ุงุซูุ ููููู ููุง 32ุ 32. ุญุชู ุฃูุชู
278
00:25:15,380 --> 00:25:18,680
ุนูุฏูู
ูู ุงูู trial frame. ุงูุขูุ ุฃูุง ุจูููู ุนูุฏ
279
00:25:18,680 --> 00:25:22,760
ู
ุซูุงู ุทูุน ุนูู ุฌูุงุฒ ุงูู Autoref-keratometer ุฃู ุฌุณูุฏุช
280
00:25:22,760 --> 00:25:27,740
ุจุงูู
ุณุทุฑุฉ ููู
ุฉ ุงูู IPD 64ุ ุฅูุด ุฃุนู
ูุ ุจุญุท ู
ู ููุง ู
ุซูุงู
281
00:25:27,740 --> 00:25:32,620
32 ูู
ู ููุง 32ุ ูุจุชููู ููู right ูููู left ุจุดูู ุงููู
282
00:25:32,620 --> 00:25:36,760
ูู ุฅููุ separateุ ุงููู ูู ู
ููุตู ู
ุง ุจูููู
.
283
00:25:41,120 --> 00:25:45,680
The error ูุฐู ู
ูู
ุฉ is not too serious if the
284
00:25:45,680 --> 00:25:50,760
lenses are of the same power. ุงูุขู ูู ูุงูุช ุงูุนูู
285
00:25:50,760 --> 00:25:56,320
ุงููู
ูู minus 3ุ ูุงูุนูู ุงููุณุฑู minus 3ุ ูุฐุง ุงูุฃู
ุฑ ุบูุฑ
286
00:25:56,320 --> 00:26:02,220
ู
ุคุซุฑุ ุฃู ุบูุฑ ุงููู ูู seriousุ ูุนูู ุบูุฑ ูุนุงู ุฃู ุบูุฑ
287
00:26:02,220 --> 00:26:04,160
ุงููู ูู ุญุงุฏุซ ุชุฃุซูุฑ.
288
00:26:07,470 --> 00:26:11,650
and are not strong. ุฃู ุจู
ุนูู ุฃูู ู
ุง ููููุด ุนูุฏู
289
00:26:11,650 --> 00:26:14,410
ุงูู
ุฑูุถ high refractive errorุ ูุนูู ู
ุง ููููุด ููู ุนูู
290
00:26:14,410 --> 00:26:18,970
ุนูุฏู minus ุนุดุฑุฉุ ูุงูุซุงููุฉ ู
ุซูุงู minus ุงุซูุง ุนุดุฑุ okay.
291
00:26:18,970 --> 00:26:26,470
ุงููู ูู high refractive error. If, however, one lens
292
00:26:26,470 --> 00:26:31,410
is very different from the other. Okay, the center
293
00:26:31,410 --> 00:26:36,270
must be placed accurately to prevent unwanted
294
00:26:36,270 --> 00:26:40,370
binocular prismatic effects. ููุชุฑุถ ุงูุขู ุงูู
ุฑูุถ
295
00:26:40,370 --> 00:26:45,270
ุนูุฏู anisometropia. ุฅูุด ู
ุนูู anisometropia ูุง
296
00:26:45,270 --> 00:26:45,830
ุฑุดุงุฏุ
297
00:26:49,550 --> 00:26:53,770
ู
ุฆุฉ ูู ุงูู
ุฆุฉ ุฃู ูู ููุงู ุงุฎุชูุงู ู
ุง ุจูู ุงููู ูู ุงูู
298
00:26:53,770 --> 00:26:58,550
both eyes. ููู
ุฉ ุงูุงุฎุชูุงู ูุฐุง ู
ุซูุงู ุฃูุซุฑ ู
ู ุฃุฑุจุนุฉ ููุง
299
00:26:58,550 --> 00:27:03,130
ุจูุญูู ูู ุฃูู ูุงุฒู
ููู
ุฉ ุงูู BD ุชููู very accurateุ ูุฃู
300
00:27:03,130 --> 00:27:08,090
ุฃู ุงุฎุชูุงู ูู ูุฐู ุงูููู
ุฉุ ุฅูุด ููููุฏ ุฅููุ ุงููู ูู ู
ูุถูุน
301
00:27:08,090 --> 00:27:12,030
ุนูุฏูุง unwanted binocular prismatic effectsุ ุงููู
302
00:27:12,030 --> 00:27:16,930
ูู ุชุฃุซูุฑ ู
ูุดูุฑูุ ุฃู ุนุฏู
ุงููุฏุฑุฉุ ุนุฏู
ูุฏุฑุฉ ุงูุนูููู
303
00:27:16,930 --> 00:27:23,350
ุนูู ุฑุคูุฉ ุจูุถูุญ at the same timeุ ุชู
ุงู
ุ Monocular PD
304
00:27:23,350 --> 00:27:28,590
are also important when using aspheric lenses or
305
00:27:28,590 --> 00:27:34,450
high index lenses, including polycarbonate lenses. ููู
306
00:27:34,450 --> 00:27:38,630
ููุงู ุจุนุถ ุงูุนุฏุณุงุช ุฒู ู
ุซูุงู ุงูู high index material
307
00:27:38,630 --> 00:27:42,930
ุฃู ู
ุซูุงู ุนูุฏูุง ุงูู polycarbonate. ูุฐุง ุงูููุน ู
ู
308
00:27:42,930 --> 00:27:47,210
ุงูุนุฏุณุงุช ูููุง ูุง ุฌู
ุงุนุฉ ุงูู chromatic aberration ุฃู
309
00:27:47,210 --> 00:27:51,230
ุงูู spherical aberration ุนุงููุฉ. ุนุงุฑููู ุฅูุด ู
ุนูุงูุงุ
310
00:27:51,230 --> 00:27:53,350
ุฅูุด ู
ุนูู ุงูู chromatic aberration ุฃู ุงูู spherical
311
00:27:53,350 --> 00:27:57,670
aberrationุ ูุนูู ุงูู
ุฑูุถ ูู
ุง ุจูุทูุน ู
ู ุงูู center
312
00:27:57,670 --> 00:28:01,650
ุจุชููู ุงูุฑุคูุฉ ูุงุถุญุฉุ ูู
ุง ุจูุทูุน ู
ู ุงูู peripheral
313
00:28:01,650 --> 00:28:06,200
ุจูููู ููุงู ููู distortion ูุงุถุญุฉ. ุงูููุฑุฉุ ูุฐู ู
ุนูุงูุง
314
00:28:06,200 --> 00:28:10,500
ุงูู spherical aberration ุฃู ุงููู ูู ู
ุง ูุณู
ู ุจุงููู
315
00:28:10,500 --> 00:28:16,740
ูู ุงูู chromatic aberration. ููุง ูู ุถุงูู ุฃูุถุงูุ high
316
00:28:16,740 --> 00:28:21,520
index lenses have more chromatic aberrationุ ูุถููุฉ
317
00:28:21,520 --> 00:28:25,660
ูู
ุงู spherical aberration than crown glasses or
318
00:28:25,660 --> 00:28:35,840
regular CR 39 plastic lenses. ุงูู Negative effect of
319
00:28:35,840 --> 00:28:40,440
chromatic aberration or spherical aberration on
320
00:28:40,440 --> 00:28:46,120
vision is increased if the eye is not looking
321
00:28:46,120 --> 00:28:49,040
through the optical center of the lens.
322
00:29:10,150 --> 00:29:18,010
ุจุงููุณุจุฉ ูู procedure ุฃู ุงูุชูููู for measuring
323
00:29:18,010 --> 00:29:25,510
monocular BD using a ruler. ูุนูู ุฅูุด ุงูุฎุทูุงุช ุงููู
324
00:29:25,510 --> 00:29:32,240
ุจุชุชู
ุงุฌุฑุงุกูุง ูููุงุณ ููู
ุฉ ุงูู monocular BD. Monocular
325
00:29:32,240 --> 00:29:39,100
PD are taken by measuring from the center of the
326
00:29:39,100 --> 00:29:43,240
nose to the center of the pupil. ูุนูู ู
ู ุงูู center
327
00:29:43,240 --> 00:29:47,820
of the noseุ ุชู
ุงู
ุ ููู center ููู pupil. ูุนูู ุจุฏู ูู
328
00:29:47,820 --> 00:29:49,000
ุนูู ุชุฃุฎุฐููุง ุนูู ุญุฏุฉ.
329
00:30:16,380 --> 00:30:25,140
ุฃูู ุญุงุฌุฉ ุจุฏูุง ูููุณ ู
ููุ ุงููู ูู ุงูู IBD ููู binocular
330
00:30:25,140 --> 00:30:29,960
ููู ูุฐู ู
ุด ุฏุงุฆู
ุงู ุงุญูุง ุจูุณุชุฎุฏู
ูุงุ ุงูุตุญูุญ. ููุดุ ูู ูุงู
331
00:30:29,960 --> 00:30:34,560
ุงูู
ุฑูุถ ุนูุฏู strabismic eyeุ ููููู ููู ููุงู ุฅูุดุ
332
00:30:34,560 --> 00:30:38,920
false ุงููู ูู readingุ ุตุญ ููุง ูุฃุ ูู ู
ุซูุงู ุงูู
ุฑูุถ
333
00:30:38,920 --> 00:30:45,930
ุนูุฏู loss of fixation ูู one eyeุ ุจุฑุถู ููููู ููุงู
334
00:30:45,930 --> 00:30:50,770
ุฅูุดุ ูุนูู false reading ูููู
ุฉ. ูุฐู ู
ุด ุฏุงุฆู
ุงู ุฃูู
335
00:30:50,770 --> 00:30:55,970
ุจูุนู
ู ููุงุณ ูู
ููุ ูุงุ ุงููู ูู ุงูู IPD ููู both eyesุ ุฃู
336
00:30:55,970 --> 00:31:01,630
ุงูู binocular IBD. Use the center of the pupil as
337
00:31:01,630 --> 00:31:04,590
the reference point. ุฏุงุฆู
ุงู ุงูู reference point
338
00:31:04,590 --> 00:31:09,260
ุจุชุงุนุชู ูู ุนุจุงุฑุฉ ุนู ู
ุฑูุฒ ุงููู ูู ุงูู pupil. ุณูุงุก ูู
339
00:31:09,260 --> 00:31:13,880
ุงูู right ุฃู ุงูู left eye. Before moving the ruler,
340
00:31:13,880 --> 00:31:19,320
note the scale reading on the ruler at the center
341
00:31:19,320 --> 00:31:24,400
of the nose. ูุนูู ูุจู ู
ุง ุฃูุง ุจุฏู ุฃุญุฑู ุงูู
ุณุทุฑุฉุ ูุงุฒู
342
00:31:24,400 --> 00:31:28,780
ุฃูุงุญุธ ุฃู ุงูุชุฏุฑูุฌ ุชุงุนู ูููุ ููููู ูู ู
ุฑูุฒ ุงููู ูู ุงูู
343
00:31:28,780 --> 00:31:35,960
nose. ุทุจุนุงู ุฃูุง ุจุชููู
ููุง ุฅููุ monocular PD. This is
344
00:31:35,960 --> 00:31:40,080
the right monocular PD. ูุนูู ูุฐู ุจุงูุถุจุท ุงููู ูู ุงูู
345
00:31:40,080 --> 00:31:45,020
exact ุฃู ุงูู accurate PD measurement. ุฃูุถุงู ุจุฏูุง ูุนู
ู
346
00:31:45,020 --> 00:31:49,600
ุฅููุ subtractุ ุจุฏูุง ูุทุฑุญ ุงูุขู ุงูููู
ุฉ ุงููู ุงุญูุง ุญุตููุง
347
00:31:49,600 --> 00:31:54,300
ุนูููุง. ูุนูู ุฃุฌูุจ ู
ุซุงูุ ูู ูุงู ุนูุฏูุง ู
ุซูุงู ุงูู IBD
348
00:31:54,300 --> 00:32:02,680
ูู binocular ู
ุซูุงู 66 ู
ููุ ูุฐู both eyesุ ุฃู
349
00:32:02,680 --> 00:32:07,960
binocular I. ูุงูุขู ุนู
ููุง monocular ุชู
ุงู
ุงู ููุนูู ุงููู
ูู
350
00:32:07,960 --> 00:32:15,660
ู
ุซูุงู ุฃูู ูุงูุช ุงูู IBD ููู
ููููููุฑ 32
351
00:32:15,660 --> 00:32:22,660
ู
ูู ููู right eyeุ ูุฏุงุด ููู
ุฉ ุงููู ูู ุงูู leftุ 34
352
00:32:22,660 --> 00:32:29,660
ู30ุ ุฅุฐุง ูุชููู ููู
ุฉ 34ุ ุชู
ุงู
ุ ูู ููู
ุฉ
353
00:32:29,660 --> 00:32:34,950
ุงููู ูู ุงูู IBD ูู
ููุ ููู left eye. ูุงุถุญุฉ ุงูููุฑุฉุ ุฅุฐุง
354
00:32:34,950 --> 00:32:38,750
ููู
ุฉ ุงูู IBD ููู left eye ูู ุนุจุงุฑุฉ ุนู ุฃุฑุจุนุฉ
355
00:32:38,750 --> 00:32:45,850
ู ุซูุงุซูู ู
ูู ู
ุชุฑุ ู
ู ุฎูุงู
356
00:32:45,850 --> 00:32:51,490
ุงููู ูู ุงูุทุฑุญ ู
ุง ุจูู ููู
ุฉ ุงูู IBD ููู binocular
357
00:32:51,490 --> 00:32:56,510
ููู both eyesุ ุจุฏูุง ูุทุฑุญูุง ู
ู ููู
ุฉ ุงููู ูู ุงูู IBD
358
00:32:56,510 --> 00:32:59,530
ุงููู ุชู
ุงูุญุตูู ุนูููุง ู
ู one eye.
359
00:33:02,540 --> 00:33:08,920
ูู ุนูุฏูุง ููุง example: the binocular BD is sixty-six.
360
00:33:08,920 --> 00:33:13,980
The scale reading at the center of the nose is
361
00:33:13,980 --> 00:33:18,000
thirty-two. ุทุจุนุงู ูุฐู ุฅู
ุง ููู right ุฃู ููู leftุ ุฃู
362
00:33:18,000 --> 00:33:24,140
whatever. ุงูู Monocular BD ููุนูู ุงูุขุฎุฑู 32.
363
00:33:45,860 --> 00:33:49,380
ุทูุจุ ุงูุขู ูู ุนูุฏูุง ุจุนุถ ุงูุฃุณุฆูุฉ ุจุฏูุง ูุญููุง ุงููู ูู
364
00:33:49,380 --> 00:33:54,420
ุณูููุงูุ ุชู
ุงู
ุ ุจุชุดู
ู
365
00:33:54,420 --> 00:34:01,060
ุงูู
ุญุงุถุฑุฉ ูุฐูุ ูู
ุญุงุถุฑุงุช ุณุงุจูุฉ. ุฃูู ุญุงุฌุฉ ุนูุฏูุง ุงูุณุคุงู
366
00:34:01,060 --> 00:34:07,040
ุงูุฃูู: the distance between lensesุ ุฅูุด ุงูู
ุณู
ู
367
00:34:07,040 --> 00:34:12,200
ุงูุซุงูู ููุ another name. ุงูู
368
00:34:12,200 --> 00:34:16,540
distance between lenses. ู
ู
ุชุงุฒุฉ. ุงูู frame PDุ ุฃู ุงูู
369
00:34:16,540 --> 00:34:21,960
geometric center of lensesุ ุตุญุ ุฃู ุงูู bridge size. ุฅูุด
370
00:34:21,960 --> 00:34:27,820
ูู ุงูู bridge sizeุ ุฃููุฉุ ุงููู ูู ุงูู narrowest area
371
00:34:27,820 --> 00:34:32,500
ู
ุง ุจูู ุงูู two lenses. It's the distance between the
372
00:34:32,500 --> 00:34:39,160
two boxes when both lenses in a frame are boxed
373
00:34:39,160 --> 00:34:44,980
off. It's measured from the inside edge of the
374
00:34:44,980 --> 00:34:50,180
grooves across the bridge. ูุนูู ุงูุขู ูู ุจุฏู
375
00:34:50,180 --> 00:34:55,580
ุงูุณุคุงู: ูุฏุงุด ููู
ุฉ ุงููู ูู ุงูู bridge sizeุ ุฃู ู
ุง ูู
376
00:34:55,580 --> 00:34:59,940
ู
ูููู
ุงูู bridge sizeุ ุฅูุด ูู ู
ู ุงูุฎูุงุฑุงุช ุงูุฃุฑุจุนุ
377
00:35:02,610 --> 00:35:06,930
ุฅู ูู ูู ุชุนุชุจุฑ ุงูู highest point of the bridgeุ ููุง
378
00:35:06,930 --> 00:35:11,150
ุงูู horizontal midlineุ ุฃู ุงูู datum line of
379
00:35:11,150 --> 00:35:16,410
the frameุ ููุง ุงูู narrowest point of the bridgeุ ููุง
380
00:35:16,410 --> 00:35:20,230
ุงูู geometric center or boxing center line of the
381
00:35:20,230 --> 00:35:26,310
frameุ ูู ุนุจุงุฑุฉ ุนู ุงููู ูู ุงูู narrowest point of the bridge.
382
00:35:26,310 --> 00:35:29,490
ุงูุขู ุฃูุง ุงููุธุงุฑุฉ ูู
ุง ุจู
ุณููุงุ ุจุฏู ููู
ุฉ ุงูู bridge
383
00:35:29,490 --> 00:35:33,930
sizeุ ูู ุฃุถูู ู
ุณุงูุฉ ุชุญุช ุงูู bridgeุ ุตุญ ููุง ูุฃุ ู
ู
384
00:35:33,930 --> 00:35:38,510
ุญุงูุชูุง ููุญุงูุฉ ุงูุซุงููุฉ. ุฅุฐุง ูู ุชุนุชุจุฑ ุงููู ูู C. ูุฐู
385
00:35:38,510 --> 00:35:46,690
ุจุชู
ุซู ู
ููุ ุงูู bridge sizeุ ุชู
ุงู
. ุญุฏูููู
386
00:35:46,690 --> 00:35:52,280
ุฅูุงูู
ุงูุฃุณุฆูุฉ. ุณุคุงู ุงูุซุงูู: ุงูู geometric center
387
00:35:52,280 --> 00:35:58,040
distance of a frame can also be termed of the
388
00:35:58,040 --> 00:36:03,520
following exceptุ ูุนูู ูู ุงูู
ุตุทูุญุงุช ูุฐู ุฃุณู
ุงุก ุซุงููุฉ
389
00:36:03,520 --> 00:36:07,400
ูู
ููุ ููู geometric center distance. ู
ุน ุฏู ูุงุญุฏุฉ
390
00:36:07,400 --> 00:36:12,160
ุนูุฏูุง: a frame center distanceุ distance between
391
00:36:12,160 --> 00:36:17,520
centersุ a frame BDุ or a frame difference. ุฅุฐุง ูู ุฏู
392
00:36:17,520 --> 00:36:23,880
frame differenceุ ู
ุฆุฉ ูู ุงูู
ุฆุฉ. ุงูุณุคุงู ุงูุซุงูุซ: a
393
00:36:23,880 --> 00:36:31,420
frame has the following manufacturer's marking. ุงู
394
00:36:31,420 --> 00:36:35,760
ุจุณ ูู ููู ูู ุชูู
ูุฉ ุงูุณุคุงูุ ุฃูู ุจุฏูุง ูุญุณุจ ูุฏุงุด ููู
ุฉ
395
00:36:35,760 --> 00:36:41,640
ุงููู ูู ุงูู IBD. ูุนูู ุงูุขู ูู ุฃูุง ู
ุซูุงู ููุช ูู ุฃูู
396
00:36:41,640 --> 00:36:51,100
ุฅุทุงุฑ ุนูุฏูุง 40 ู
ุซูุงูุ 5
397
00:36:51,100 --> 00:36:58,180
ู 20ุ ุชู
ุงู
ุ ุฅุฐุง ุนูุฏูุง ุจุงูุดูู ูุฐุง ูุฏูุ ููู
ุฉ ุงูู
398
00:36:58,180 --> 00:37:03,220
frame PD ู
ุฆุฉ ูู ุงูู
ุฆุฉ 40 ุฒุงุฆุฏ 5 ู 20
399
00:37:03,220 --> 00:37:08,140
ุฅุฐุง ูุชููู |