Eye Health Medical Reference

What makes your pupils stay open, or dilated? Learn about the causes, and what to do if you have dilated pupils.

Got new bifocals, trifocals, or progressives? It may take some time to get used to them. These tips can make it easier.

After an eye exam, should you get behind the wheel if you’ve had your eyes dilated? There are a few things to think about before you decide.

Eyes feeling itchy and irritated? Before you assume there's something wrong, see what could be behind the dryness and how to remedy it yourself.

Dry eyes can be related to problems with your thyroid gland. Find out what conditions and why, and what you can do about it.

Your dry eyes might be a sign of a problem with your immune system. Find out some common conditions, why it happens, and what you can do about it.

Learn about why you might need one, what the different procedures are, and what you can expect after a corneal transplant.

Does smoke make your eyes itchy and watery? Learn why smoking makes dry eye worse and how you can ease your symptoms.

Could coffee ease your dry eye symptoms? Learn why caffeine can help with dry eye.

If you have aqueous tear-deficient dry eye, your tear glands don't make enough tears. Learn what causes this condition and what to do about it.

What is evaporative dry eye? Learn what causes this condition, what the symptoms are, and how to treat it.

If your eye won't shut all the way, you could get exposure keratitis. This condition causes painful eyes and blurry vision. Learn what causes it and what to do about it.

If you have dry eyes, you probably know what to do to make them better. Learn about the habits and treatments you should skip so you don't make them worse.

Sitting in front of a computer in a climate-controlled office all day puts you at risk for itchy, tired, dry eyes. These tips can help ease your symptoms.

Dry eye is a common symptom after LASIK surgery. Here’s what to expect if you’re feeling discomfort after this vision correction surgery.

Find out why some skin conditions, such as rosacea and blepharitis, are linked to dry eye.

Find out why hormones like estrogen, insulin, and thyroid hormone can play a role in your dry eye.

When your eyes are drier than the Sahara Desert, you need relief. Here’s how to bring back the moisture and the comfort.

Polarized lenses protect your eyes from sun damage. Learn about how they work, the pros and cons, and more.

How do online vision tests work, and what can they tell you about your eyes? Before you take one, know what to expect.

Dry eyes can cause blurry vision, redness, and light sensitivity. Are allergies to blame?

Find out how the food on your plate and the shape of your shades can help relieve dry, scratchy eyes.

Partial hemianopia is when you lose part of your ability to see. Learn more about what causes it, what to expect, and more.

Seeing your ophthalmologist for your dry eye? Prep yourself by learning what tests you might have.

Trouble making tears? Learn the different types of dry eye.

Dealing with dry eyes? Learn what symptoms may mean it’s time to see a doctor.

From blood pressure medications to antihistamines, a lot of common drugs can cause dry eye. Learn which medications to look out for and what you can do about it.

Learn about the various types of eye drops, such as artificial tears, allergy drops, and anti-redness drops, and find the best one for your dry eyes.

Could what you eat help your dry eye? You may be surprised at the answer.

Staring into computer, smartphone and other screens can dry out your eyes. Here’s why it happens and what you can do about it.

Learn what giant papillary conjunctivitis is, why it occurs, and how to treat and manage it effectively.

Wondering how to take care of your contact lenses -- and prevent infections and other problems? Get tips on what to do.

An eye-opening look at your pupils and what they can tell you.

Issues that affect your eyelid can be uncomfortable. Learn about the different problems and injuries that can happen with them and how to get treatment.

Your doctor wants to dilate your eyes. Do you really need it? Here’s what they’re looking for and how it may affect you.

Because you put it right into your eye, an ointment can work faster than a pill. Learn what it’s for and how to apply it properly.

Sometimes your retina pulls away from its normal spot in the eye. This is called retinal detachment. Learn about the three different types: rhegmatogenous, exudative, and traction.

Surgery can be a treatment for glaucoma. How do you know if you’ll need it? What are the types? How will you recover?

Normal tension glaucoma is an eye condition that can lead to vision loss. Learn more and find out what you can do to help protect your sight.

Learn how an eye injury can lead to vision loss and what you can do to help protect your sight.

Retinal imaging is a relatively new eye test that can detect many diseases in the eye. But what is it?

What is that instrument your optometrist has in his hand and what is it used for?

This quick test is a crucial part of a complete eye exam. Here’s why you need to have it.

The goal of glaucoma treatment is to keep you from losing any vision. Your doctor will likely prescribe some of these things to help prevent problems with your eyes.

If you have uveitis, your eye doctor can help save you from blindness. But first, they need to figure out if you have it. Here’s how.

This painful eye inflammation can be very serious. Find out what causes keratitis and what you can do to protect your sight.

Do you blink and squint in bright light? Find out what causes light sensitivity called photophobia and how to treat it.

This common eye condition can make you lose your eyelashes and cause dry eyes and blurred vision. Find out more about the symptoms and what you can do about them.

Have you ever seen a person with differently colored eyes? This is called heterochromia. Here's why it happens.

What does it mean when your pupils get very small and stay that way? Find out more about abnormal eye miosis.