Leber Hereditary Optic Neuropathy - Provides details of aetiology, diagnosis, symptoms, and research. Includes recommendations for genetic testing and counselling. From GeneReviews.
Leber Optic Atrophy - The National Center for Biotechnology Information provides details of the genetic components, and a description of clinical features.
Leber's Optic Neuropathy - The Scottish Sensory Centre provides an outline of the condition, as well as explaining how affected individuals can be helped by family and friends.