What is Dry Eye?

Dry eye occurs when your eyes don’t make enough tears, or your tears evaporate too quickly. This can make your eyes feel scratchy or irritated, and in severe cases may temporarily make your vision blurry.

Who is Affected by Dry Eye?

Dry eye is more common in women and in people aged over 65. This is because as you get older, your eyelids are not as effective at spreading your tears across your eyes when you blink. Also, the meibomian glands in your eyelids, which produce the oily part of your tears, become less effective and may become blocked. This is a condition called blepharitis.

What Are the Symptoms of Dry Eye?

Despite its name, having dry eye can actually cause your eyes to water. This is because the watery layer of your tears will dilute the oiliness of your tears, which reduces their ability to lubricate your eyes.
Symptoms of dry eye include:

  • Gritty eyes
  • Feeling like something is in your eyes
  • Stinging or burning eyes
  • Heavy eyelids
  • Blurred vision
  • Watery eyes (If your eyes water a lot, you may dilute the oily layer of your eyes, causing them to dry out.)

How Do You Treat Dry Eye?

Treatment of dry eye depends on what is causing it.

  • If your dry eye is caused by your eyes not producing enough tears, you can use eye lubricants. These are available as drops, gels or ointment, and most are available without a prescription from your optometrist or pharmacist. Gels are thicker and stay in your eye for longer. Ointment is generally used for people whose eyes dry out at night because they do not fully close their eyes. Eye lubricants do not contain any drugs and so you can use them as often as you like. However, some contain preservatives which may make your eyes sore. If you are using them more than six times a day you should use preservative-free drops.
  • If your dry eye is caused because your tears are evaporating too quickly, you can use a spray that you spray on your closed eyelids. This replenishes the oily layer of your tears and stops them evaporating as quickly. The spray is available without prescription from your optometrist or pharmacist.
  • If you have blepharitis you can treat this by keeping your eyelids clean and using warm compresses on your eyelids to help unblock the glands which produce the oily part of your tears.

How to: Use Eye Drops

The Best Possible Care for Your Eyes

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