inÂ·diÂ·caÂ·tion. The basis or rationale for using a particular treatment or diagnostic test; may be furnished by a knowledge of the cause (causal indication), by the symptoms present (symptomatic indication), or by the nature of the disease (specific indication). [L. fr. in-dico, pp.
This happens after a bright flash or by looking at a bright light by mistake. This has never happened until about a year ago. Update: The light is not like the blurred light you see after looking at a bright light. It is a semi-circular jagged line to the right which caused a loss of vision where it exists. It gradually expands and drifts to the right periphery disappearing after about 15 minutes. Update 2: Thanks - I don't know who is giving the thumbs down as all the answers are helpful!
Q: Dear Dr. Mao, My toenails have fine white lines running in a horizontal direction, although my fingernails are fine. Do you know what could be the cause of this condition? A: White lines running in a horizontal direction could be Muehrckeâs lines, which are indicative of lowered amounts of protein in the blood. Meesâ lines, horizontal lines of discoloration, can indicate arsenic poisoning, Hodgkinâs disease, congestive heart failure, leprosy, malaria, chemotherapy, carbon monoxide poisoning, or other systemic traumas.