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Nyctalopia; impaired night vision. Symptoms are not consistent with typical migraine aura. Symptoms are not better explained by another disorder (ophthalmological, drug abuse). Normal ophthalmology tests (best-corrected visual acuity, dilated fundus examination, visual field, and electroretinogram); not caused by previous intake of psychotropic ...
The symptoms of insomnia, Tiani says, are when you can’t fall asleep for more than 30 minutes, when you stay up for more than 30 minutes after waking at night, or when you wake up in the morning ...
Illusory palinopsia is often worse with high stimulus intensity and contrast ratio in a dark adapted state.Multiple types of illusory palinopsia often co-exist in a patient and occur with other diffuse, persistent illusory symptoms such as halos around objects, dysmetropsia (micropsia, macropsia, pelopsia, or teleopsia), Alice in Wonderland Syndrome, visual snow, and oscillopsia.
Cyanopsia is most commonly reported in older adults after cataract surgery, where symptoms typically subside within a few days to weeks as the eyes adapt to the synthetic lens. In younger adults, cyanopsia is often caused by medications like sildenafil, with symptoms disappearing once the drug's effects wear off.
Pay attention to whether any of these are waking you up at night, and make adjustments accordingly. For example, if you always wake up because the sun peeks in at 5 a.m., hang up blackout curtains.
Temporary vision loss "For some people, it goes beyond the visual cortex," Broner says. "They have stroke-like symptoms where the words aren't coming out right or it sounds garbled," she explains.
Nyctalopia (/ ˌ n ɪ k t ə ˈ l oʊ p i ə /; from Ancient Greek νύκτ-(núkt-) 'night' ἀλαός (alaós) 'blind, invisible' and ὄψ (óps) 'eye'), [1] also called night-blindness, is a condition making it difficult or impossible to see in relatively low light. It is a symptom of several eye diseases.
Sleep research conducted in the 1990s showed that such waking up during the night may be a natural sleep pattern, rather than a form of insomnia. [2] If interrupted sleep (called "biphasic sleeping" or " bimodal sleep ") is perceived as normal and not referred to as "insomnia", less distress is caused and a return to sleep usually occurs after ...