Flashcards in Lens Deck (12):
Hardening of the lens that occurs naturally in animals. The hardening scatters light such that the lens appears cloudy. Does not cause vision loss.
any opacity of the lens or lens capsule
Utilizing the appearance of one object relative to another to determine depth
Small collagen fibrils arising from the ciliary body that attach to the equator of the lens, securing the lens' position within the eye
Type of cataract is common in diabetics in which the cataract progression is driven by an osmotic effect as a result of entrapped sorbitol within the lens capsule
Intumescent (swollen) cataracts
This is the modern technique for cataract surgery in which the lens is broken up using ultrasound energy and aspiration.
enzyme that converts glucose to sorbitol which becomes trapped within the lens capsule, causing an osmotic pulling effect.. Lens swells creating an intumescent cataract.
Complete detachment of the lens from the lens zonules. the lens typically shifts anteriorly or posteriorly
Partial detachment of the lens from the lens zonules. The lens typically shifts side to side revealing an aphakic crescent.
Meaning without a lens; lens subluxation displays a crescent shaped area in which the lens is visibly displaced, known as an aphakic crescent.
Movement of the iris that occurs secondary to lens instability