Blog list

Melanin absorbs light, even some UV light, which is important for the iris — the part of the eye that controls how much light enters the pupil...

Around that time, the Roman philosopher Seneca used a glass globe of water to magnify text, while Emperor Nero needed a magnifying emerald to see gladiator fights...

That isn’t great, but where do our eyes fit into the equation? When we get enough sleep, it’s great for both our overall health and our eye health...

Thankfully we don’t have to worry whether or not we’re putting actual poison on our faces when we apply modern makeup, but we should still take a few precautions...

Early diagnosis is critical for stopping many sight-threatening conditions in their tracks, which is why we should be on the watch for signs of age-related vision loss...

There is such incredible variation in how eyes work across the animal kingdom that we could spend years studying and barely scratch the surface, so to start out...

That chart, the formal name of which is the Snellen chart (after the 19th-century Dutch eye doctor Herman Snellen who developed it), is certainly a good diagnostic tool for catching nearsightedness...

All it means when someone has 20/20 vision is that they have normal visual acuity without refractive errors like nearsightedness, farsightedness, or astigmatism...

The temptation can sometimes be to leave the glasses at home instead of wearing them, even though that means going through a day of fuzzy vistas and squinting...

Over 20 million adults 40 and up in the US will develop cataracts, and by the time they reach 80, half of them will...