What Causes Animals To Become Blind?Interestingly, animals become blind for reasons similar to those which cause humans to become blind. Also, humans fall near the middle of the visual spectrum of animals, meaning that about as many species see better than we do as see worse than we do.
The kauaʻi cave wolf spider, olm and the Mexican tetra are examples of animals that are born without eyes, while others like the mole rat have eyes but are typically blind.
Here are the main reasons why animals become blind. Clearly all of these affect humans too!
- Infant blindness
- Color blindness
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