MRCP UK EXAMINATIONS

Detailed explanation-1: -Photophobia is eye discomfort in bright light. The cornea allows light to enter the eye. As light passes through the eye the iris changes shape by expanding and letting more light through or constricting and letting less light through to change pupil size.

Detailed explanation-2: -The single-most effective tool for combating photophobia is precision-tinted glasses, specifically those tinted with FL-41. Research has shown these lenses to relieve even the most chronic of light-sensitive individuals, whether they have migraine, blepharospasm, post-concussion syndrome or another disorder.

Detailed explanation-3: -Photophobia is a common symptom seen in many neurologic disorders. While the underlying mechanism of photophobia is still elusive, the discovery of ipRGCs appears to be an advance in understanding.