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A cataract is an opacity that develops in the crystalline lens of the eye. [9] The word cataract literally means, "curtain of water" or "waterfall" as rapidly running water turns white, so the term may have been used metaphorically to describe the similar appearance between mature ocular opacities and water fall.
The sides of the tongue are inspected with a gloved hand holding a piece of gauze. The tongue is moved side to side and inspected; it should be pink, moist, smooth and glistening. Assessment of the ventral (bottom) surface of the tongue is done by having the patient touch the tip of their tongue against the roof of their mouth.
Oral cancer on the tongue. Oral cancer may occur on the lips, tongue, gums, floor of the mouth or inside the cheeks. The majority of cancers of the mouth are squamous cell carcinoma. Oral cancers are usually painless in the initial stages or may appear like an ulcer.
Cataracts may be partial or complete, stationary or progressive, hard or soft. Histologically, the main types of age-related cataracts are nuclear sclerosis, cortical, and posterior subcapsular. [41] Nuclear sclerosis is the most common type of cataract, and involves the central or 'nuclear' part of the lens. This eventually becomes hard, or ...
Age-related macular degeneration ACG/CAG Angle closure glaucoma BDR Background diabetic retinopathy BP Blood pressure BRAO Branch retinal artery occlusion BRVO Branch retinal vein occlusion Cat Cataract: CLAPC/CLIPC Contact lens associated/induced papillary conjunctivitis CLARE Contact lens associated red eye CLPU
This may occur in the event of posterior capsule rupture, zonular dehiscence, [Note 1] or a dropped nucleus [Note 2] with a nuclear fragment more than half the size of the cataract; [2] problematic capsulorhexis with a hard cataract; [2] or a very dense cataract where phacoemulsification is likely to cause permanent damage to the cornea. [2]
The cataract is removed from the capsule and anterior chamber using hydroexpression [Note 3] viscoexpression, [Note 4] or more-direct mechanical methods. [4] [13] [14] The extraction of the cataract must be done with due care so as not to compromise the integrity of the tunnel; the endothelium and capsule are also vulnerable to injury.
Phacolytic glaucoma (PG) is a form of glaucoma which is caused due to a leaking mature or immature cataract.Inflammatory glaucoma which occurs in phacolysis is a condition which is a result of the leakage of protein within the lens into the capsule of a mature or hyper mature cataract and involves a simple procedure to be cured that is referred to as cataract extraction.
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