Examlex
As the camera's electron beam moves across the target,the electric signal that is produced and goes to the television monitor maintains a constant level to produce a quality image.
Cataracts
A condition where the lens of the eye becomes progressively opaque, leading to blurred vision.
Glaucoma
A group of eye conditions that damage the optic nerve, potentially leading to blindness if not treated, often associated with high intraocular pressure.
Astigmatism
A common vision condition caused by an irregular curvature of the eye's cornea or lens, leading to blurred or distorted vision.
Ptosis
A condition characterized by the drooping of one or both eyelids, which can be congenital or acquired.
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