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One theory suggests that cyanopsia may develop due to the sudden unmasking of blue light sensitivity after cataract surgery, as the brain adjusts to the removal of the natural lens. For medication-induced cyanopsia, the inhibition of PDE6 is believed to temporarily disrupt normal photoreceptor function, emphasizing blue light in visual perception.
Ulku Dogan had surgery to make her eyes blue after wearing colored contact lenses for years. ... 12 out of 40 keratopigmentation patients experienced light sensitivity in the first month ...
Light sensitivity or photosensitivity refers to a notable or increased reactivity to light. Apart from vision , human beings have many physiological and psychological responses to light. In rare individuals an atypical response may result in serious discomfort, disease, or injury.
The photic sneeze effect is a genetic tendency to begin sneezing, sometimes many times consecutively (due to naso-ocular reflex [18]), when suddenly exposed to bright light. This condition tends to occur more severely after one has emerged into the light after spending time in a dark environment. [19]
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It is light-sensitive and communicates visual messages to the brain. If the retina detaches, it moves and shifts from its normal position. This can cause photopsia, but can also cause permanent vision loss. Medical attention is needed to prevent vision loss. Procedures may include laser treatment, freezing, or surgery.
Sensitivity to light or sound. Difficulty reading or speaking. Hyperactivity. While some of these behaviors, particularly cravings, were once thought of exclusively as migraine triggers, "there's ...
Patients with systemic lupus erythematosus experience skin symptoms after sunlight exposure; some types of porphyria are aggravated by sunlight. A rare hereditary condition xeroderma pigmentosum (a defect in DNA repair) is thought to increase the risk of UV-light-exposure-related cancer by increasing photosensitivity.