The blending of the separate images seen by each of two eyes into a single image. Normal binocular vision yields a stereoscopic image and parallax-induced depth perception.
An ophthalmoscope which provides an illuminating system and which is used with a condensing lens in order to direct appropriately focused light into the patient's eye.
Day blindness. Loss of one half of the visual field in one or both eyes. Often caused by clouding or opacity of one or more of the normally clear ocular tissues.
The absence of refractive error symmetry between both eyes. If one person's eye has a refractive error that is more than one diopter greater than the other, it is called ...
Corrective lenses that have two powers of correction. Typically the majority of the lens is corrected for distance vision while a small are is corrected for near vision. Bifocals ...
Medical prescription terms were originally all written in Latin. Many of the Latin terms continue to be used today. Eyeglass prescriptions are somewhat different, and you can ...
A tiny amount of a fluorescein dye is placed in the tear film. The color will make microscopic dots appear where the eye has become dry. Excessive staining is an indication of dry ...
A prism is a lens that will bends light towards its base. Prisms are used to measure the angle of deviation in strabismus to correcting binocular polyopia when the eyes become ...
This is a method of applying excimer laser energy. Rather than applying all excimer energy in a broadbeam across the entire ablation area, or the energy in variable spots sizes ...
13 Terms
