Blindness is the state of being sightless. Causes of blindness include macular degeneration, stroke, cataract, glaucoma, infection and trauma. Symptoms and signs may include eye pain, eye discharge, or the cornea or pupil turning white. Treatment of blindness depends upon the cause of the blindness. Read more: Blindness Article
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Stroke Causes, Symptoms, and Recovery
What is a stroke? Learn about stroke symptoms like sudden numbness or weakness, confusion, vision problems, or problems with...
Cataracts Causes, Symptoms, Vision Tests, and Surgery
Cataracts are a painless clouding of the internal lens of the eye. Learn about symptoms (blurry vision, glare and poor night...
Picture of Color Blindness
When we see different colors, we are perceiving differences in the light that is reaching our eyes. See a picture of Color...
Picture of Diabetic Retinopathy
Diabetic retinopathy, a common complication of diabetes, affects the blood vessels in the retina (the thin light-sensitive...
Picture of Cataracts
Cataract is a painless condition where the normally clear aspirin-sized lens of the eye starts to become cloudy. See a picture of...
Picture of Glaucoma
Glaucoma (the sneak thief of sight) refers to certain eye diseases that affect the optic nerve and cause vision loss. See a...
Picture of Eye Anatomy Detail
The eye has a number of components which include but are not limited to the cornea, iris, pupil, lens, retina, macula, optic...
Picture of Eye
The eye has a number of components which include but are not limited to the cornea, iris, pupil, lens, retina, macula, optic...
Related Disease Conditions
Shingles, or herpes zoster, is a painful rash caused by the varicella zoster virus. Other shingles symptoms include headache,...
Migraine headache is a type of headache associated with a sensitivity to light, smells, or sounds, eye pain, severe pounding on...
Leprosy (Hansen's disease) is a disfiguring disease caused by infection with Mycobacterium leprae bacteria. The disease is spread...
Stroke (Signs, Symptoms, Warning Signs)
A stroke is an interruption of the blood supply to part of the brain caused by either a blood clot (ischemic) or bleeding...
Glaucoma is a common eye condition in which the fluid pressure inside the eye rises because of slowed fluid drainage from the...
Internal Bleeding (Symptoms, Signs, Causes, Treatment)
Internal bleeding occurs when an artery or vein is damaged and blood to escapes the circulatory system and collects inside the...
A corneal ulcer is an open sore on the cornea. Infection is a common cause of corneal ulcer. Symptoms and signs of corneal ulcer...
Polymyalgia rheumatica (PMR) is a disorder of the muscles and joints that causes pain and stiffness in the arms, neck, shoulders,...
Paget's disease is a chronic bone disorder due to irregular breakdown and formation of bone tissue. Symptoms of Paget's disease...
Age-related macular degeneration (AMD) is a disease that gradually destroys the central vision. In people over 60, AMD is a...
Scleritis is inflammation of the white part of the eye. It may be caused by a serious underlying condition, such as an autoimmune...
Optic neuritis is inflammation of the optic nerve, the structure that connects the eye to the brain. The precise cause of optic...
Herpes Viral Infections of the Eye
Herpes of the eye occurs due to herpes simplex virus-1 (HSV-1). Symptoms of herpes of the eye include pain in and around the eye,...
Mucormycosis (zygomycosis) is a fungal infection caused by Zygomycetes. Symptoms and signs include fever, headache, coughing,...
Rocky Mountain Spotted Fever (RMSF)
Rocky Mountain spotted fever is a tick-borne disease that causes symptoms and signs such as fever, rash, headache, and muscle...
Smallpox is a disease caused by the variola virus. Symptoms and signs include: a characteristic rash and high fever. Treatment...
Trachoma is an infectious disease caused by the Chlamydia trachomatis bacteria. Symptoms and signs include redness and irritation...
Creutzfeldt-Jakob disease (CJD) is a rare, degenerative, invariably fatal brain disorder. CJD generally appears in the later...
A cataract is an eye disease that causes the eye's lens to become cloudy and opaque with decreased vision. Causes of cataracts...
Measles (rubeola) is a highly contagious disease that's caused by a virus. Symptoms include a rash, high fever, cough, runny...
Shaken Baby Syndrome (Abusive Head Trauma)
Shaken baby syndrome, or abusive head trauma, is the condition that describes the symptoms and signs that result from the violent...
Diabetes and Eye Problems
Diabetes and eye problems are generally caused by high blood sugar levels over an extended period of time. Types of eye problems...
Eye Care and Eye Disorder
Many common eye disorders resolve without treatment and some may be managed with over-the-counter (OTC) products. It's important...
Giant Cell Arteritis (GCA or Temporal Arteritis)
Giant cell arteritis, inflammation of blood vessel walls, affects 10%-15% of polymyalgia rheumatica patients. Symptoms of giant...
Treacher Collins Syndrome
Treacher Collins syndrome (TCS) is a rare genetic condition that affects the development of the bones and tissues of the face....
Onchocerciasis, or river blindness, is a parasitic disease that may cause blindness. It is transmitted by the bite of a female...
Retinitis pigmentosa (RP) is a genetic condition that causes retinal degeneration and eventual vision loss. Symptoms include...
Coats' disease is a rare eye condition that typically progresses to vision loss or blindness in one eye. Gradual vision loss is...
Neuromyelitis optica (Devic's syndrome) is a disease of the CNS that affects the optic nerves and spinal cord. People with...
Canavan disease is an inherited genetic disorder that typically causes death before 10 years of age. Signs and symptoms of the...
Color blindness is a condition where a person does not see colors in the usual way. Color blindness is a genetic condition that...
Eyeglasses, Sunglasses, and Magnifying Glasses
Nonprescription eyeglasses are available over the counter (OTC) and are typically used by people who can no longer read fine...
Contact Lenses: Colored, Soft, Hard, Toric and Bifocal
Contact lenses fit over the cornea and correct vision problems such as nearsightedness, farsightedness, or astigmatism. Contact...
Alport syndrome is a genetic condition that causes kidney disease, hearing loss, and vision loss in affected individuals....
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