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Eyewear

Eyeglasses, goggles or other objects worn over the eyes, usually to aid vision or for protective purposes.

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Eyewear > Optometry

cyclorotation

Eyewear; Optometry

See Cyclotorsion.

transition zone

Eyewear; Optometry

The area of laser ablation that changes for the full correction of the central ablation zone optical ablation zone to the original surface depth of the cornea.

cyclotorsion

Eyewear; Optometry

When eyes rotate clockwise or counterclockwise. This often occurs when a person changes from vertical (standing or sitting up) to horizontal (lying down) position.

trifocals

Eyewear; Optometry

Corrective lenses that have three powers of correction. Typically the majority of the lens is corrected for distance vision while a small area is corrected for near vision and ...

day blindness

Eyewear; Optometry

Common term for Hemeralopia.

ultrasound

Eyewear; Optometry

Procedures using sound waves to measure certain portions or detect abnormalities within the eye. See A Scan and B Scan.

decentration

Eyewear; Optometry

A complication of refractive surgery. In perfect centration, the center of the corneal ablation exactly coincides with the center of the visual axis and/or pupil. This is like ...

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