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The power of phakic lens is independent of the axial length of the eye. Rather it depends on central corneal power, anterior chamber depth (ACD) and patient refraction (preoperative spherical equivalent). The most common formula for calculating the power of phakic IOL is the following: [2]
The aphakic state is usually due to surgery to remove a cataractous lens, but post-surgical aphakia is rare nowadays because of the ubiquity of intraocular lenses. Rarely, aphakia can be post-traumatic or congenital in nature. Aphakic IOL refers to a lens implanted secondarily in an eye already aphakic from previous surgery or trauma.
In most instances, a game replay is a recording of a battle or race between opponents in a video game which can then be viewed by other players. However, game replays are also used for single-player gameplay, especially for speedruns. Some games, such as TrackMania, Doom, and N, use size-efficient replay files that record inputs to get a 1:1 ...
Aphakia is the absence of the lens of the eye, due to surgical removal, such as in cataract surgery, a perforating wound or ulcer, or congenital anomaly. It causes a loss of ability to maintain focus (accommodation), high degree of farsightedness (), [1] and a deep anterior chamber.
Bullous keratopathy, also known as pseudophakic bullous keratopathy (PBK), is a pathological condition in which small vesicles, or bullae, are formed in the cornea due to endothelial dysfunction. In a healthy cornea, endothelial cells keeps the tissue from excess fluid absorption, pumping it back into the aqueous humor.
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Patient with aphakic (without lens due to cataract surgery), or pseudophakic eye (with implanted lens after removal of natural lens) would have the injection 3.0-3.5 mm posterior to the limbus, while injection to the phakic eye (with natural lens) is done 3.5-4.0 mm posterior to the limbus. [6] An anatomical diagram showing the limbus of the eye.
Aphakic and pseudophakic glaucoma: Aphakic glaucoma is a common side-effect of cataract surgery which causes an increase in IOP. [ 2 ] Corticosteroid -induced glaucoma: Corticosteroids is a risk factor for the development of secondary glaucoma, as there had been increased IOP observed as a drug side-effect.