A zygomaticomaxillary fracture—often called a ZMC fracture or tripod/tetrapod fracture—is a break of the cheekbone where the zygoma (cheekbone) meets the ...

“Eye zone of injury” describes how far back into the eye wall an injury has gone. Doctors divide the globe (the eyeball itself) into zones to quickly describe ...

Zinc optic neuropathy means damage to the optic nerve—the cable that carries visual signals from the eye to the brain—caused primarily by a lack of zinc in the ...

Eye Zika Virus means eye problems caused by infection with the Zika virus. Zika is a virus spread mainly by Aedes mosquitoes. It can also spread through sex, ...

Xerophthalmia is the medical name for eye disease caused by vitamin A deficiency. “Xero” means dry, and “ophthalmia” means a problem in the eyes. When the body ...

“Xen glaucoma” is not a separate disease. It usually means glaucoma that is being treated (or planned to be treated) with a XEN Gel Stent, or glaucoma that ...

Xanthelasma (often called xanthelasma palpebrarum) is a harmless, yellow, soft patch that grows on the eyelids, most often near the inner corner and along the ...

X-linked retinoschisis (XLRS) is a genetic eye condition that mostly affects boys and men. It causes the retina—the light-sensing “film” lining the back of the ...

The condition recognized in the medical literature is X-linked endothelial corneal dystrophy (XECD). Despite the word “anterior” in your prompt, XECD primarily ...

A Wolfring gland ductal cyst is a fluid-filled sac that forms in the tiny tear-making tubes (ducts) of the accessory lacrimal glands of Wolfring. These ...

Wolfram syndrome (often called WFS or DIDMOAD) is a rare, genetic, multi-system disorder that usually begins in childhood or the teen years. The nickname ...

Wipe-out, also called snuff-out, is a sudden, severe, and usually irreversible loss of the remaining central vision that can happen soon after glaucoma surgery ...

Kayser–Fleischer ring is a golden-brown to greenish ring seen at the edge of the cornea (the clear front window of the eye). It forms when excess copper in the ...

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 ...