линза

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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Industria/ámbito: Gafas
Categoría: Optometría; Lentes de contacto; Cirugía ocular
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ойысты линза

Gafas; Optometría; Lentes de contacto; Cirugía ocular

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

Gafas; Optometría; Lentes de contacto; Cirugía ocular

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

Gafas; Gafas

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 ...

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A long, green, cylinder-shaped member of the gourd family with edible seeds surrounded by mild, crisp flesh. Used for making pickles and usually eaten ...