Unilateral hearing loss (UHL) means that hearing is normal in one ear but there is hearing loss in the other ear. The hearing loss can range from mild to very severe. Parents or caregivers of children with UHL may ask:
The mirror doesn't flip left and right; it flips forward and back. Your front is farther north than your back, but your reflection's front is farther south than its back. Your feet and the reflection's feet both face down. The wrist with the watch is on the west side, both for you and your reflection.
The polarized lenses are used to block this intense light that is reflected from flat surfaces. The reason for this is that polarized sunglasses are made with vertical polarization, while the light reflected by the sun on flat surfaces is horizontally polarized. The non polarized lenses have a dark shade and reduce the intensity of light. However, unlike the polarized lenses, they cannot counter the effects of horizontal polarization. These lenses do not take into account the direction in which light is coming.