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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 ...
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.
The phlegm was then said to be blown out of the nose. The eye would later be soaked with warm, clarified butter before being bandaged. [16] The removal of cataracts by surgery was introduced into China from India, and flourished in the Sui (581–618 CE) and Tang (618–907 CE) dynasties. [17]
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 ...
Aging in cats is the process by which cats change over the course of their natural lifespans. The normal lifespan of domestic cats is in the range of 13 to 20 years. As cats senesce, they undergo predictable changes in health and behavior. Dental disease and loss of olfaction are common as cats age, affecting eating habits.
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]