Eye Health Medical Reference

Find out what you need to know about sixth nerve palsy cramps and learn about its causes, symptoms, and treatment.

Endophthalmitis is when the tissues of your eyes get infected due to a foreign object. Learn about its causes, symptoms, diagnosis, treatment, and prevention.

Learn about asteroid hyalosis, a typically benign eye condition.

Esotropia is an eye condition that causes one or both eyes to turn inward. Learn more about this condition, what causes it, how to treat it, and when to see your doctor.

Cold weather can be your enemy if you have dry eye disease, but these simple steps can help you preserve eye moisture and stay comfortable

Eyelid ectropion occurs when your eyelid muscles weaken and pull away from your eye. Learn more about this condition, the causes, symptoms, and possible treatments.

Several rare diseases make up the condition known as inherited retinal dystrophy. Learn about their causes, symptoms, and treatments.

A Roth spot is a hemorrhage in the retina. Learn more about its causes, symptoms, and treatment options.

Learn what retinal drusen are, what causes them, symptoms, treatment options, and more.

Visual acuity is the clarity of vision when measured at a distance of 20 feet. Learn more about what it means, how it's tested, and more.

Depth perception is how your eyes produce 3D images. Learn about how your eyesight works to focus and make images appear correctly today.

Find out what you need to know about carotid-cavernous fistula, and discover the causes, risks, and treatments, and how it may affect health.

Eye floaters are small specks or shapes that you may see in your vision. Learn more about the cause and how to treat them.

Scleral buckling is a surgical procedure used to repair a retinal detachment. Learn more about when you need it, how to prepare for the surgery, and the long-term outlook.

Palinopsia is when you see an image repeatedly, even after looking away from it. Learn about how it is caused, and what it is commonly treated with.

Xerophthalmia is an eye disease caused by vitamin A deficiency. Learn more about what causes it, what to expect, and more.

Learn what a visual field is, how to test it, when to test it, and what different types of tests can be used to test the visual field.

Buphthalmos means that one or both eyeballs are larger than normal. Learn about what causes it, what to expect, and more.

Learn about conjunctival chemosis, what causes this swelling of the membrane that covers the eye, and how chemosis is treated.

Learn more about how castor oil can help dry eyes, tear production, and more.

Fluorescein angiography is a test for your eyes. Learn about how it’s done, what to expect, why it’s done, and more.

Exophoria is when your eyes drift outward out of your control. Learn about the causes, symptoms, and treatment options for this condition today.

Learn about pinhole glasses, including whether the popular claims made about them are true, what studies have been done on them, and the many ways eye doctors use them.

Learn what snow blindness is, including what causes it, how to treat it, how to prevent it, and more.

The weather, the climate, and conditions in your home and office can trigger dry eye disease or make it worse. Learn more about how your surroundings affect your eyes.

Inflammation, your body's response to injuries and germs, may contribute to dry eyes. In turn, dry eyes can make eye inflammation worse. Learn more about the link between dry eye disease and inflammation.

Think you might have astigmatism? Learn how to check for this eye condition at home and when you need to see an eye doctor.

Pink eye, or conjunctivitis, is an inflammation of the lining of the eye. Learn about home and prescription remedies to speed up your recovery, and when to see a doctor.

A stye is a red, hot, and tender bump on the outer (and sometimes inner) edge of your eyelid. Its appearance is similar to that of a pimple or a boil.

Exercising your eyes can help relieve symptoms of eye strain. Learn the best exercises for eye strain, how to get started, and how to keep your eyes healthy.

A neuro-ophthalmologist is a medical doctor who specializes in treating vision issues linked to neurological conditions. Learn about the conditions they treat and when you might need to visit one.

Learn how treatment of thyroid eye disease can ease your symptoms and help correct any damage you may have from the condition.

Find out how you can manage many thyroid eye disease symptoms on your own with over-the-counter products and home remedies.

In thyroid eye disease, your immune cells attack healthy eye tissue. Learn about the causes, symptoms, and long-term effects.

Thyroid eye disease, with redness and swelling, can be mistaken for other conditions. Learn which tests your doctor can use to get the right diagnosis.

Too much exposure to blue light could lead to insomnia and symptoms of depression. Learn more about how it can affect your mental health.

Blue light -- the kind from your smartphone, tablet, TV, and even energy-efficient light bulbs -- can lead to a range of health issues. Here are a few tips to ward off blue light’s effects.

The sun is the biggest source of blue light. Popular electronics are another source. Learn more about blue light and how it works.

Blue light can be harmful in large amounts. Learn more about how it can impact your eyes and sleep quality.

Blue light can help or hurt your skin. Learn more about where it comes from and how it can impact your skin.

Do your eyes grow as you age? Do they change shape? Does your vision change? Lean what to expect from your eyes as you get older and how to take care of your eyes at any age.

Aphakia is a condition in which the lens of your eye is missing. Learn what causes it, what its symptoms are, and how it’s treated.

The humid, dog days of summer are usually great for dry eyes. But in certain situations, you might still feel the irritation, sensitivity to light, and vision issues that come with dry eye. Here's how to keep dry eye at bay when the temperatures rise.

People have used ingredients from a type of rose called the Damask rose for medical purposes throughout history. Learn what modern studies show about the potential uses of the plant for eye problems.

Is it allergies, or is something else making your eyes itch? Find out what it could be and how to treat it.

Lagophthalmos is when your eyes don’t close all the way. Learn more about this condition and how to treat it.

Botox is a popular option for people who want to get rid of wrinkles without having surgery. One common side effect of wrinkle injections is eyelid droop. What causes it and how can you prevent it?

Your eyes work together to see images around you. But sometimes they move in different directions, causing vision problems. Hypertropia is when one eye turns up. It’s not common, and when it happens, it mostly occurs in children.

LASIK and PRK are procedures that correct vision problems, but in a slightly different way.

Are styes contagious? Read more about the causes, symptoms, treatment, and prevention of this eye condition.