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This sudden increase in blue light reaching the retina causes the brain to perceive a blue tint in vision. This effect is temporary as the brain and eyes gradually adapt to the new lens. Medication Effects: Certain medications, such as sildenafil, interfere with enzymes in the retina, particularly phosphodiesterase-6 (PDE6). This disruption ...
Zolpidem is a drug prescribed for insomnia, and although it has proven beneficial effects, there have been numerous reported cases of adverse perceptual reactions. [13] One of these cases discusses an anorexic woman's episode of macropsia, which occurred twenty minutes after taking 10 mg zolpidem.
Hallucinogen persisting perception disorder (HPPD) is a non-psychotic disorder in which a person experiences apparent lasting or persistent visual hallucinations or perceptual distortions after using drugs, [1] including but not limited to psychedelics, dissociatives, entactogens, tetrahydrocannabinol (THC), and SSRIs.
Online, people claim they get brain zaps after stopping use of drugs like Lexapro (escitalopram), Cymbalta (duloxetine), and Paxil (paroxetine), but they can happen when you stop taking any type ...
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.
Oculogyric crisis (OGC) is a rare sudden, paroxysmal, dystonic reaction that may manifest in response to specific drugs, particularly neuroleptics, or medical conditions, such as movement disorders. This neurological phenomenon is characterized by a sustained dystonic, conjugate, involuntary upward deviation of both eyes lasting seconds to hours.
Micropsia is a condition affecting human visual perception in which objects are perceived to be smaller than they actually are. Micropsia can be caused by optical factors (such as wearing glasses), by distortion of images in the eye (such as optically, via swelling of the cornea or from changes in the shape of the retina such as from retinal edema, macular degeneration, or central serous ...
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