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Flash blindness is an either temporary or permanent visual impairment during and following exposure of a varying length of time to a light flash of extremely high intensity, such as a nuclear explosion, flash photograph, lightning strike, or extremely bright light, i.e. a searchlight, laser pointer, landing lights or ultraviolet light. [1]
Treatment: In most cases, photopsia is a symptom of a preexisting condition. ... such as flashing lights (photopsia): usually only in the context of blindness ...
This is termed arc eye, while photokeratitis caused by exposure to sunlight reflected from ice and snow, particularly at elevation, is commonly called snow blindness. [5] It can also occur due to using tanning beds without proper eyewear. Natural sources include bright sunlight reflected from snow or ice or, less commonly, from sea or sand. [6]
Man, 31, suddenly went blind. Undiagnosed and uncontrolled type 2 diabetes was to blame. Blood sugar under control. Complicated cataract sugery.
Time blindness has garnered a lot of skepticism online, but it's real. Those who have it aren't irresponsible, according to experts, they just perceive time differently.
Visual or vision impairment (VI or VIP) is the partial or total inability of visual perception.In the absence of treatment such as corrective eyewear, assistive devices, and medical treatment, visual impairment may cause the individual difficulties with normal daily tasks, including reading and walking. [6]
Cortical blindness-Cortical blindness is the total or partial loss of vision in a normal-appearing eye caused by damage to the brain's occipital cortex. [7] Retrobulbar neuritis- Retrobulbar neuritis cause of visual loss with normal fundus but there will be relative afferent pupillary defect (RAPD) and abnormal visually evoked responses. [8]
Solar retinopathy or "eclipse blindness" is untreatable and can catch you by surprise. Here's what to look for.