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A hospital in Turkey has treated 17 men in two years who took sildenafil, the active ingredient in Viagra, and reported "intense" blue vision.
What it’s like to have migraine with aura, a poorly understood condition that can cause sudden, temporary blindness
The condition is rarer than migraines that only include a severe headache, and can lead to vision changes, slurred speech, and muscle weakness.
A 4-year-old girl in Iowa went blind after the flu caused a rare disease to impair her brain function
Jade DeLucia did not get vaccinated. Her parents are now speaking out about the importance of an annual flu shot.
An optical illusion that seems to be both a circle and a square is baffling the internet — here’s how it works
"How can it be square AND circular?" Asked one confused viewer. This optical illusion has actually baffled the internet before.
Nick Humphreys, a 29-year-old man from the UK, contracted Acanthamoeba keratitis, which is an infection caused by an amoeba found in water.
From having watery eyes to experiencing frequent headaches, here are some common signs you could need glasses.
A man who overdosed on erectile dysfunction medicine now has red-tinted vision — and doctors say it’s ‘irreversible’
A 31-year-old man now sees everything with a red tint after a high dose of erectile dysfunction medication damaged his color vision, according to a case study published in the journal Retinal Cases & Brief Reports. Despite various treatments, it hasn't improved a year after his diagnosis.
Artist Nickolay Lamm consulted hypothosizes how cats view the world compared to humans. They can see better in the dark but are nearsighted.
According to Google Trends, search terms related to vision problems spiked in popularity Monday.
People usually notice symptoms of solar retinopathy — including blurry vision, discolored spots in vision, pain, or a loss of central vision — by the next day.