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линза

A transparent double convex (outward curve on both sides) structure between the iris and the vitreous humor. Two structures of the eye focus light onto the retina. The first is the cornea or front surface of the eye that provides about 65% of the focusing power of the eye. The human lens is located behind the iris and in front of the vitreous humor and provides the remaining focusing power for the eye. In younger patients (usually below age 45) the lens is able to adjust it's power allowing the eye to change it's focal length from distance to near.

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ойысты линза
Eyewear; Optometry; Contact lenses; Eye surgery

A lens with a hollow shape like the inside surface of a ball. Concave lenses are minus power lenses and are used to correct myopia (nearsighted, shortsighted vision).

дөңес линза
Eyewear; Optometry; Contact lenses; Eye surgery

A lens with a bulging surface like the outer surface of a ball. Convex lenses are plus power lenses and are used to correct hyperopia or farsightedness. Also used for reading ...

линза материалдары
Eyewear; Glasses

The right lens is just as important as the frame shape, color or size. The lens choice will determine the thickness and visual accuracy of your prescription. FramesDirect.com ...

сатылы линза
Eyewear; Contact lenses

An antiquated technology used in situations requiring such high plus power that a full field meniscus lens would be impractical (because of thickness, weight and fit). This area ...

алыстан көргіштік
Eyewear; Optometry; Contact lenses; Eye surgery

Common term for hyperopia.

бифокальды көзәйнектер
Eyewear; Optometry; Contact lenses; Eye surgery

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 ...

ескіру мерзімі
Eyewear; Optometry; Contact lenses; Eye surgery

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 ...

бинокулярлық
Eyewear; Optometry; Contact lenses; Eye surgery

Both eyes.

флуоресцеин
Eyewear; Optometry; Contact lenses; Eye surgery

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 ...

призма
Eyewear; Optometry; Contact lenses; Eye surgery

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 ...

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