Posterior capsular opacification (PCO)

Posterior capsular opacification (PCO)

Opacification of the posterior lens capsule. Sometimes called a "secondary cataract". Often a consequence of modern cataract surgery. It occurs when a thin membrane of tissue grows over the remaining capsule following cataract surgery, and can develop in as many as half of all cases between several months and several years after surgery. Most often treated using the YAG laser to ablate a hole in the capsule.

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Part of Speech: noun
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Industry/Domain: Eyewear
Category: Optometry; Contact lenses; Eye surgery
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posterior capsular opacification (PCO)

Eyewear; Optometry; Contact lenses; Eye surgery

Opacification of the posterior lens capsule. Sometimes called a "secondary cataract". Often a consequence of modern cataract surgery. It occurs when a thin membrane of tissue ...

ophthalmoscope

Eyewear; Optometry

An optical instrument used to examine the external and internal parts of the eye, particularly the media and the fundus.

pantoscopic angle

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1. Angle in the vertical plane between the optical axis of a spectacle lens and the visual axis of the eye in the primary position, usually taken to be the horizontal. 2. Angle ...

optical material

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Transparent material capable of being manufactured into optical components.

optical radiation hazard

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Possibility of damage to the retina by optical radiation.

optical centre

Eyewear; Optometry

For practical purposes, the intersection of the optical axis with the front surface a lens.

ophthalmoscope

Optometry; Optometry

An optical instrument used to examine the external and internal parts of the eye, particularly the media and the fundus.

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