Problems that affect the optic nerve include glaucoma, optic neuritis, and stroke. Approximately 20 of the population have anisocoria. Optic nerve problems: Your optic nerve carries sensory information from your retina to your brain. Unequal pupil size, or anisocoria, is a condition in which the pupils are different sizes at the same time.This occurs because of a faulty connection between nerve pathways connecting the brain and face. While small differences in pupil size are normal and can even come and go (physiologic anisocoria), constant and significant differences in pupil sizes may be a sign of damage to the brain or the nerves that control the pupils. Affecting up to 20 of the population, anisocoria is often entirely harmless. Normally our pupils are relatively the same size. Anisocoria is a condition characterized by an unequal size of the eyes pupils. Horner's syndrome: This condition causes a small pupil and a drooping eyelid on one side. Anisocoria is a medical term for unequal pupil size.Glaucoma: Affecting more than 3 million people in the United States, glaucoma could cause pupils that are not the same size, and it could affect the way pupils respond to light.Eye trauma: Eye trauma can cause several changes to your eye, including a pupil that is not its usual shape. There are a few different medical conditions that are strongly associated with: Sensitive To Light Unequal Pupils (Size) While the symptoms above can be considered a guide to help associate symptoms common among the conditions below, this is not a substitute for a diagnosis from a health care provider.Brain tumor: A brain tumor could cause your pupils to dilate or become bigger at different speeds.An Argyll Robertson pupil can indicate the presence of late-stage syphilis, among other conditions. ![]()
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