eye disorders
Hereditary Optic Nerve Disorders
Symptoms of Hereditary Optic Nerve Disorders
Indominant optic atrophy, vision loss often begins before the age of 10 years. The vision loss is very gradual over years to decades. Rarely, people can also have nystagmus (a rapid jerking movement of the eyes in one direction alternating with a slower drift back to the original position), hearing loss, or both. People also have trouble distinguishing shades of blue and yellow. InLeber hereditary optic neuropathy, vision loss usually begins between the ages of 15 and 35. The vision loss is fairly rapid over weeks to several months. Rarely, people have abnormal heart conduction or nervous system function. 