Eyewear

Eyewear

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

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Eyewear > Optometry

manifest refraction

Eyewear; Optometry

An examination of the eye to determine refractive error while the natural crystalline lens is able to accommodate.

complex wavefront retreatment (CWR)

Eyewear; Optometry

A secondary surgery using wavefront-guided ablation in an attempt to reduce higher order aberrations induced by previous surgery. Complex Wavefront Retreatment is an off-label use ...

root mean square (RMS)

Eyewear; Optometry

Actually means the root of the mean of the squares and is an evaluative measurement of a wavefront diagnostic. It describes the smoothness of the surface in terms of deviation ...

masks

Eyewear; Optometry

Most older technology excimer laser machines employ different kinds of masks to customize, refine, and smooth the corneal surface. Many machines have an internal constricting ...

concave lens

Eyewear; Optometry

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).