1 Leber's hereditary optic neuropathy (LHON). 2  Particularly prevalent among males, this type of inherited optic neuropathy can affect even carriers who don't have other symptoms but do have a degree of color blindness. 3  Red-green color vision defects primarily are noted with this condition. 4  Kallman's syndrome.
This medical symptom information shows the various types of Fever, and other related symptoms or conditions, including their causes and diagnosis. 1  Chills. 2  FUO. 3  Low-grade fever. 4  Prolonged fever. 5  Mild fever. 6  High fever. 7  Very high fever. 8  Recurrent fever.
Fever blisters areâ¦: â¦caused by the herpes simplex virus (usually type 1, but can also be type 2) which is transmitted by contact with an infected person. Lesions don't even have to be visible to transfer virus.