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The Mexican tetra (Astyanax mexicanus), also known as the blind cave fish, blind cave characin or the blind cave tetra, is a freshwater fish in the Characidae family (tetras and relatives) of the order Characiformes. [4][5] The type species of its genus, it is native to the Nearctic realm, originating in the lower Rio Grande, and the Neueces ...
The Amblyopsidae are a fish family commonly referred to as cavefish, blindfish, or swampfish. They are small freshwater fish found in the dark environments of caves (underground lakes, pools, rivers and streams), springs and swamps in the eastern half of the United States. Like other troglobites, most amblyopsids exhibit adaptations to these ...
Geographic atrophy (GA), also known as atrophic age-related macular degeneration (AMD) or advanced dry AMD, is an advanced form of age-related macular degeneration that can result in the progressive and irreversible loss of retinal tissue (photoreceptors, retinal pigment epithelium, choriocapillaris) which can lead to a loss of visual function over time.
Cavefish. Garra andruzzii showing the pale colour and lack of eyes typical of cavefish. The large red spot on the head is the blood-filled gills, visible through the semi-transparent gill cover. Cavefish or cave fish is a generic term for fresh and brackish water fish adapted to life in caves and other underground habitats.
floaters, photophobia. Complications. uveitis, blindness. Sympathetic ophthalmia (SO), also called spared eye injury, is a diffuse granulomatous inflammation of the uveal layer of both eyes following trauma to one eye. It can leave the affected person completely blind. Symptoms may develop from days to several years after a penetrating eye injury.
These fish are blind; no ocular tissue is found in their eye sockets except for a little black spot in each of the eyes. [2] An increase in predation when G. ankaranensis is exposed to UV light might be due to the lack of eyes and pigments. [3] Pigments are necessary when G. ankaranensis is exposed to UV light because they deflect UV light. [3]
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The blind cave eel (Ophisternon candidum) is a species of cavefish in the family Synbranchidae.It is the longest cavefish in Australia (up to 40 cm (16 in)) [2] and one of the only three vertebrates in Australia that is restricted to underground waters, the other being the blind gudgeon (Milyeringa veritas) and the Barrow cave gudgeon (Milyeringa justitia). [3]