Here’s what to focus on to keep your eyesight strong and clear, according to ophthalmologists.Number one on the list of Americans’ worst health nightmares : vision loss. A bad-dream scenario, for sure, but the truth is that an estimated 61 million of us are at high risk for it, according to Johns Hopkins researchers. “The eyes have many delicate parts, so they simply don’t age very well,” saysThese parts work together in a complex, amazing way to give you the sense of sight.
The light bends even more once it hits the lens, which is situated behind the iris. This structure controls focus, letting us take in, say, a field of flowers from far away or a single blossom up close.Taking up most of the space between the back of the lens and the retina, this clear gel helps keep the eye rounded and nourished.The light that comes in via the cornea and through the lens winds up at this tissue in the back. Here, photoreceptor cells transform light into electrical pulses.