Subconjunctival Hemorrhage
A subconjunctival hemorrhage is leaking of blood from a small blood vessel in the eye into the area between the conjunctiva and the sclera (the white of the eye). A subconjunctival hemorrhage may be caused by an eye injury or…
Conjunctivitis
Conjunctivitis (also called pinkeye) is inflammation of the conjunctiva, the transparent membrane that covers the white of the eye and lines the eyelids. Conjunctivitis is a common condition that can result from a bacterial or viral infection or from an…
Corneal Ulcer
A corneal ulcer is an open sore or break in the surface of the cornea (the clear, protective covering at the front of the eye). In most cases, a corneal ulcer begins as a scratch or other injury to the…
Dry eye syndrome
Dry eye is a condition that results from inadequate tear production. Although dry eye often occurs in people who have rheumatoid arthritis or Sjögren’s syndrome, in many cases the condition occurs for no obvious reason. Dry eye usually develops in…
Misaligned Eyes (Strabismus)
Normally aligned eyes move together and look in the same direction at the same time, which is essential for normal vision. When eyes are misaligned, uncoordinated movements of the eye muscles cause each eye to look in a different direction.…
Orbital Cellulitis
Orbital cellulitis is inflammation of the soft tissue of the orbit (the bony socket in the skull that contains the eyeball). The condition usually occurs when bacteria from a sinus infection, from a penetrating injury to the orbit, or from…
Exophthalmos
Exophthalmos is a condition in which one or both eyeballs bulge forward, exposing an abnormally large part of the front of the eye. The most common cause of the condition is Graves’ disease, an autoimmune disorder that causes the thyroid…
Color Vision Deficiency
Color vision deficiency (also called color blindness) is a vision disorder in which a person sees colors differently than other people see them or has difficulty distinguishing shades of some colors. The disorder occurs when malfunctioning receptor cells for color…
Secondary Tumors
Cancer cells can spread through the bloodstream or the lymphatic system from a tumor in one area of the body to form a tumor in another part of the body, including in the eye. Treatments A secondary tumor is treated…