What is my tear film?

The tear film protects and nourishes the cornea; the outer layer of cells on the front surface of your eye – your window to the world. Your cornea is responsible for up to two-thirds of your eye’s optical power, needed to focus light onto the back of your eye (retina), to help you to see well. Maintaining a healthy tear film is therefore important in ensuring good sight.



What is dry eye?

When the tear film does not function correctly, and not enough tears are produced, the eye dries out. This is a common condition and is referred to as dry eye syndrome or keratoconjunctivitis sicca. Although it particularly affects older people, it can occur at any age.

  1. EuroTimes Supplement February 2019: ‘Diagnosing and Treating Ocular Surface Disease in Surgical Patients’

What are the symptoms of dry eye?

Despite its name, having dry eye can 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 include2:

• 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.)

Managing dry eye

Lubricating your tear film helps to protect and nourish your cornea and alleviate dry eye.


AEON is a family of eye drops formulated to support the health of your tear film and offer long-lasting lubrication for dry eye.

How to apply my eye drops

To ensure your best chance of success it always helps to take advice from the experts. This is the technique recommended by the pharmacy team at the world-renowned Moorfields Eye Hospital.


If you are using multiple eye drop treatments, always consult your eye surgeon on how to use them in combination.

"The freedom of not wearing glasses and having new lenses has been extraordinary and wonderful."

Susan R, Sulcoflex Trifocal patient (UK)