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Cyanopsia is a symptom rather than a disease, so the focus is on identifying the underlying cause that is making Cyanopsia occur. Doctors ask about recent cataract surgery or the use of medications like sildenafil, which are known to cause cyanopsia. The timing and duration of symptoms help distinguish cyanopsia from other vision issues. [7]
Cataracts can be developed through old age, diseases or trauma to the eye. [5] Some animals that are prone to the development of cataracts are dogs, elephants, horses, pandas and seals. Cataracts are less common in cats [6] in comparison to dogs, where it is fairly common. Just like with humans, cataract extraction surgery can be performed on ...
From velvety purples to fiery reds, many people can see a spectrum of vivid colors via the human eye. Others, however, may have limited hue perception due to certain conditions.. Animals, on the ...
Post traumatic rosette cataract of a 60-year-old male. Blunt trauma causes swelling, thickening, and whitening of the lens fibers. While the swelling normally resolves with time, the white color may remain. In severe blunt trauma, or in injuries that penetrate the eye, the capsule in which the lens sits can be damaged.
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.
Trauma can cause cataracts in childhood. [2] [4] There are different types of traumatic injury that cause cataracts in different parts of the world. Child abuse may cause traumatic injury to the eye and cataracts. [2] Open globe injuries are more often associated with cataracts than closed globe injuries. [4]
Approximately 50% of all congenital cataract cases may have a genetic cause which is quite heterogeneous. It is known that different mutations in the same gene can cause similar cataract patterns, while the highly variable morphologies of cataracts within some families suggest that the same mutation in a single gene can lead to different ...
Attachment to the cornea can cause small corneal opacities, while attachment to the lens can cause small cataracts. Using topical atropine to dilate the pupil may help break down PPMs. In dogs, PPM is inherited in the Basenji but can occur in other breeds such as the Pembroke Welsh Corgi, Chow Chow, Mastiff, and English Cocker Spaniel.