A retinal implant – or bionic eye – which is powered by light has been invented by scientists at Stanford University in California.  Implants currently used in patients need to be powered by a battery.  

The same technology used by astronomers to obtain clear views of distant stars is now being used by optometrists to perform incredibly detailed examinations of the living eye.

From an anatomical point of view, a normal, non-pathological eye is known as an emmetropic eye, and has been studied very little until now in comparison with myopic and hypermetropic eyes. The results show that healthy emmetropic women have a wider pupil diameter than men…

Though glaucoma has been nicknamed the silent thief of sight, eye experts now say it generally doesn’t have to be that way. ”For most people, if you treat early, you should have vision for a lifetime,” said Dr. Mark Fromer, an ophthalmologist at Lenox Hill Hospital and medical director of the Fromer Eye Centers, both in New York City, and the eye surgeon director for the New York Rangers hockey team…

Symptoms of eye allergies, or allergic conjunctivitis, include watery, itchy, red, sore, swollen, and stinging eyes. Itchy eyes are the most important symptom of allergic conjunctivitis. Without itching, it’s much less likely that a person is suffering from eye allergies. Both eyes are usually affected, although one eye may be more symptomatic than the other…

Working in mice, scientists at Washington University School of Medicine in St. Louis have devised a treatment that prevents the optic nerve injury that occurs in glaucoma, a neurodegenerative disease that is a leading cause of blindness…