Eye Problems and Diseases
This section has complete information on eye and vision problems. Jump down this page to alphabetical lists of:
. . . or begin with these general articles:
Table of Contents
Common Eye Disorders
How to identify and deal with everyday eye problems.
Eye Symptoms A to Z
Use our list of almost 100 eye symptoms to learn about the problems and diseases associated with each.
Eye Injury: A Guide to Treatment
Accidents cause many kinds of eye injuries, from corneal scratches to penetrating wounds. What to do for an eye emergency.
Clinical Trials Related to Eye Diseases
Consider participating in a clinical trial for treatment of glaucoma, macular degeneration, blepharitis or other eye problems and diseases.
Poor contact lens hygiene often causes this rare but serious eye infection.
Amblyopia (Lazy Eye)
Amblyopia (or "lazy eye") is a vision development problem in infants and young children that can lead to permanent vision loss. Learn the symptoms, causes and treatments.
This condition causes sudden paralysis of one side of the face. Because of inability to blink, you may develop severe dry eye.
Inflammation of the eyelids can cause chronic eye irritation, tearing, foreign body sensation and crusty debris.
If you live long enough, it's likely you eventually will notice cloudy vision from cataracts. Learn about causes and about cataract surgery, which replaces your eye's natural lens with an artificial one. Also check out the newer, high-tech laser cataract surgery method.
See also: Cataract news | FAQ | Eye Doctor Q&A | Congenital cataracts
A swollen bump in the eyelid could be a chalazion. Learn about causes and treatments.
Learn the varieties of color deficiency and how to cope in our color-coded world.
- LipiFlow is a clinically proven procedure that treats the cause of your Evaporative Dry Eye
- TheraTears eye drops help eyes function at their best. Get a coupon worth $2!
- Have questions about dry eye? Submit them to our dry eye expert or find answers to previously submitted questions
- Retaine MGD Tears adheres to the ocular surface and protects against moisture loss
Treatment may help prevent scarring on your eye.
Dry Eye Syndrome
Why eyes get dry. Read about eye drops, tear duct (punctal) plugs and nutritional supplements for more eye moisture. Also, see the dry eye doctor's answers to reader questions. To learn more, view details about how punctal plugs work and our FAQ on dry eyes and the best contact lenses for them.
Eye Occlusions (Eye Strokes)
Sudden vision loss can occur when a clot or blockage interrupts blood flow to vital eye structures.
Eye Pain - New!
How to know if a painful eye is an emergency.
Eyelid twitches, tics and spasms are maddening. Here are common causes.
Floaters, Flashes and Spots
Eye floaters and flashes may be harmless, or they may signal a serious problem, like a detached retina.
Suddenly blurry or distorted vision, especially in seniors and diabetics, may mean a macular hole.
Uncontrollable eye movements from nystagmus often have neurological causes.
How to solve eye and eyelid irritation.
Optic Neuritis and Optic Neuropathy
An inflamed optic nerve can cause blurry vision and blind spots.
Photophobia (Light Sensitivity)
Sensitive to light? Many eye conditions can cause this problem.
Pinguecula and Pterygium
Pingueculae and pterygia are growths on the eye. Are they serious?
Red eyes can be caused by allergies, eye infections and eye injuries. Learn more causes of red eye and how to treat bloodshot eyes.
Dry eye is a common symptom of this autoimmune disorder.
Sleep in Your Eyes - New!
Do you often wake up with sticky, slimy, crusty "eye gunk"? Article explains where eye discharge comes from and when it's cause for alarm.
Key facts about strabismus and crossed eyes, including causes and treatments (strabismus surgery, vision therapy and orthoptics).
What causes styes in your eyelid and how to prevent and treat them.
Sudden redness in the white of your eye may be a subconjunctival hemorrhage.
Swollen eyes have many causes. Here are tips for prevention and treatment.
Painful inflammation of the uvea causes light sensitivity, floaters and blurred vision.
About 80 percent of adults have been exposed to the cytomegalovirus (CMV), but it mostly affects people with poor immune systems, such as AIDS patients.
Conjunctivitis (Pink Eye)
What you can do about redness, swelling, itching and tearing of pink eye. Also read about pink eye treatment and the various conjunctivitis types. Find out answers to common questions such as how long pink eye lasts, how to get rid of pink eye and how long pink eye is contagious.
Diabetes causes sight-threatening retinal degradation. Also read about treatment for diabetic retinopathy and macular edema. More details are found in our Eye Doctor Q&A on how diabetes affects your eyes and our diabetic retinopathy FAQ, as well as the latest diabetic retinopathy news.
Ocular herpes is a recurrent viral infection that may lead to serious vision loss. Read how herpes of the eye is transmitted and treated.
Fuchs' Corneal Dystrophy
Causes loss of vision and clouding of the cornea due to degeneration of the corneal endothelium and corneal edema.
Glaucoma damages the optic nerve and diminishes the field of vision. Learn about glaucoma causes, eye drops for glaucoma, narrow-angle glaucoma, primary open-angle glaucoma and glaucoma surgery.
See also: Eye Doctor Q&A | Glaucoma News & Research | Glaucoma FAQ
Macular Degeneration (AMD)
Our 10-page section covers this sight-threatening disease, plus FDA-approved macular degeneration treatments, investigational treatments, macular degeneration prevention, how to use an Amsler Grid and the Lucentis vs. Avastin treatment debate. Stargardt's disease is a form of macular degeneration that can affect children.
See also: News | Eye Doctor Q&A | FAQ
Central vision loss can be associated with this inherited eye disease.
High eye pressure has no symptoms, but can be easily detected in an eye exam. Learn what can be done to prevent glaucoma and possible eye damage.
Poor night vision and a narrowing field of vision beginning in childhood herald this rare disorder. Can vitamin A and beta carotene help? Also read our Eye Doctor Q&A on retinal problems.
Stargardt's Disease (STGD)
Children and young people can develop Stargardt's disease, often leading to central vision loss.
Surgical Eye Procedures
It's the most common non-elective surgery in the United States. Recent innovations include laser-assisted cataract surgery. Also learn about options for intraocular lenses (IOLs), including accommodating and multifocal types.
See also: Cataract Surgery Cost | Cataract Surgery Recovery
Choosing a Cataract Surgeon | Cataract Surgery Complications
Crystalens & Accommodating IOLs | Multifocal IOLs | Mixing Multifocal Lenses
IOLs for Presbyopia FAQ | A Cataract Surgeon Undergoes Cataract Surgery
Eye injuries and diseases like keratoconus may require a cornea transplant, using healthy tissue from an eye donor.
Corneal Collagen Crosslinking (CXL, C3R)
Not yet FDA-approved, these procedures can strengthen the front surface of the eye and help keratoconus patients avoid a cornea transplant.
New options for controlling glaucoma with surgery.
Intacs for Keratoconus
These tiny corneal inserts can flatten a bulging eye.
Vitrectomy & Vitreoretinal Procedures
These delicate surgical procedures for macular holes, retinal detachments and other conditions are performed in the eye's deep interior.
Blurry vision has many causes, from fatigue and eyestrain to serious eye diseases such as glaucoma. A video helps explain blurry vision causes and treatments.
Double Vision (Diplopia)
Many conditions cause double vision, including stroke and cataracts. What to do.
Higher-Order Aberrations (HOAs)
Higher-order aberrations are vision errors causing poor night vision or double images.
Farsighted people can have poor near vision or blurred vision at all distances.
Nearsighted people can see fine up close, but distant objects are a blur.
Peripheral Vision Loss
"Tunnel vision" can have various causes, including glaucoma.
[Page updated March 2014]