What does the red eye have to do with tay sachs disease?

The "red eye" refers to a symptom often associated with Tay-Sachs disease, particularly in infants. As the disease progresses, it can lead to retinal abnormalities, including a characteristic "cherry-red spot" on the retina, which is a key diagnostic indicator. This spot is caused by the accumulation of gangliOSides in the retinal cells, leading to visual impairment and other neurological issues associated with Tay-Sachs disease.