The Basics

Ptosis is when the upper eyelid droops down more than it should. If the ptosis is severe, it may block vision.

Brown syndrome is a problem with a tendon that attaches to the eyeball. In Brown syndrome, this tendon can't move freely. This limits the eye's normal movement. Brown syndrome is a rare disorder. It is usually present at birth (congenital). In some cases, it's acquired later in life.

Brown syndrome is a problem with a tendon that attaches to the eyeball. Most cases are congenital, which means they are present at birth. Here's what you need to know about this condition.

Your retina has special cells that detect color. If you have a problem with these cells, you may not be able to see some colors.

CVS is very common. Your eyes may itch and tear, or be dry and red. You may not be able to focus well. These problems are the result of a lot of computer use.

Convergence insufficiency (CI) is a problem with the way the eye moves. It makes it hard to focus on things nearby. When the eyes converge, it means they point inward (toward the midline) to focus on something close. With CI, the eyes have trouble doing this. One eye may turn out instead of looking inward. CI can cause blurred vision, double vision, and eyestrain.