Wilson’s disease is a rare inherited condition where the body cannot handle copper properly. A gene change (ATP7B) disables a protein that should move extra ...

White-Eyed Blow-Out Fracture is a special kind of orbital blow-out fracture that usually happens in children and teenagers. The orbit is the bony socket that ...

A white cataract is a very dense, advanced cataract in which the normally clear lens of the eye has turned opaque and looks white when you shine light into the ...

West Nile retinopathy means inflammation and injury to the light-sensing layers at the back of the eye (the retina and choroid) caused by the West Nile virus ...

West African Crystalline Maculopathy is an eye condition where tiny, shiny, yellow-green crystals collect in the very center of the retina (the fovea, the part ...

West African Crystalline Retinopathy is a rare eye condition seen mostly in people of West African origin. Doctors see tiny, shiny, yellow-green “crystals” ...

A Wessely Immune Ring is a thin, gray-white ring that appears inside the clear part of the eye (the cornea). The ring sits within the corneal stroma (the ...

Wernicke Encephalopathy (WE) is a sudden brain disorder caused by a lack of vitamin B1 (thiamine). Thiamine is a small nutrient your body cannot store in large ...

Weill-Marchesani Syndrome (WMS) is a rare, inherited connective-tissue condition that affects the eyes, the skeleton (bones and joints), and sometimes the ...

Wallenberg syndrome happens when the side (lateral) part of the medulla—a small but vital area at the bottom of the brainstem—loses its blood supply, most ...

Waldenström Macroglobulinemia (WM) is a rare cancer of B-cells (a type of white blood cell). These cancer cells live mainly in the bone marrow and make a very ...

Waldenström macroglobulinemia is a rare type of slow-growing blood cancer. It starts in B-lymphocytes (a type of white blood cell) inside the bone marrow. ...

Wagner syndrome is a rare, inherited eye condition that mainly affects the vitreous (the clear gel that fills the eye) and the retina (the light-sensitive ...

A Vossius ring is a round, brown-black circle that appears on the front surface of the eye’s natural lens (the anterior lens capsule) after blunt trauma to the ...

A vortex vein varix is a localized, balloon-like widening of a vortex vein, which is one of the large choroidal drainage veins inside the eye. The choroid is ...

Von Hippel–Lindau (VHL) syndrome is an inherited condition that raises the lifetime risk of developing multiple tumors and cysts in different organs. These ...

Vogt’s striae are very fine, straight, vertical lines that an eye doctor can see inside the clear front window of your eye (the cornea) when you have ...

Vogt–Koyanagi–Harada (VKH) disease is an autoimmune condition. “Autoimmune” means the body’s defense system gets confused and attacks its own cells. In VKH, ...

Vitreous Wick Syndrome is a problem that happens when strands of the eye’s vitreous (the clear, gel-like substance that fills the back of the eye) slip forward ...

Vitreous metastasis means cancer cells that started somewhere else in the body have traveled through the bloodstream and reached the vitreous (the clear gel ...