Cones outnumber rods only in the center of the retina, which is the area of greatest density. It is also the area most heavily used by daytime, direct vision. But rods do fire during the day, ...

Chronic dry eye has a variety of causes, ranging from factors like aging to medications and certain types of weather. Learn about the causes of dry eye and what you can do to effectively manage ...

Types of dry eye Dry eye syndrome can be classified into two main categories: evaporative dry eye and aqueous-deficient dry eye.

Lasik eye surgery costs an average of $2,632 per eye. The best ways to save are by using a discount through your insurance and paying with an FSA or HSA.

Spain's SpliceBio has raised $135m in financing that will help it move a gene-editing therapy for Stargardt disease through clinical testing.