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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 ( hyperopia ), [ 1 ] and a deep anterior chamber .
Aphakia is the absence of the natural crystalline lens. 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.
Red Bull is a brand of energy drinks created and owned by the Austrian company Red Bull GmbH.With a market share of 43%, it is the most popular energy drink brand as of 2020, [8] and the third most valuable soft drink brand, behind Coca-Cola and Pepsi. [9]
Krating Daeng (Thai: กระทิงแดง, RTGS: krathing daeng, pronounced [krà.tʰīŋ dɛ̄ːŋ]; lit. 'red bull' or 'red gaur') [1] is a non-carbonated energy drink created by Chaleo Yoovidhya. The drink is marketed and sold primarily in Southeast and East Asia; its derivative, Red Bull, is available in 165 countries. [2]
Red bull (feminine: red cow) [a] is a pejorative label from Vietnamese social media used to describe Vietnamese public opinion commentator. [ 1 ] [ 2 ] Red bulls not only support Vietnamese government unreasonably but also monitor active Internet users and harass or scare dissidents .
Replacement of the lens as treatment for cataract can cause pseudophakic macular edema (‘pseudophakia’ means ‘replacement lens’). This could occur as the surgery involved sometimes irritates the retina (and other parts of the eye) causing the capillaries in the retina to dilate and leak fluid into the retina. This is less common today ...
One cause of significant anisometropia and subsequent aniseikonia has been aphakia. Aphakic patients do not have a crystalline lens. The crystalline lens is often removed because of opacities called cataracts. The absence of this lens left the patient highly hyperopic (farsighted) in that eye.
Diagram of light and four Purkinje images [1] An eye with Purkinje images. Purkinje images are reflections of objects from the structure of the eye.They are also known as Purkinje reflexes and as Purkinje–Sanson images.