Frequently asked questions

What does my prescription mean?

Your prescription is often displayed in some form of table, with various abbreviations, words and numbers to describe the outcome of your eye examination and what lenses are required to correct your vision. For information on what the abbreviations, words and numbers mean click here.

What is the best way to clean my lenses?

For day to day cleaning use an Essilor lens cleaning cloth available from your local optician. For a deeper clean use an optical lens cleaning spray with your cleaning cloth. Ask your optician for the best cleaning solution for your lenses.

Can I buy lenses directly from Essilor?

Essilor lenses are available from a wide range of opticians. Click on our optician finder and search for your local optician to book an appointment and discuss your visual solution needs.

What is the cost of Essilor lenses?

Your lenses are made up of a corrective design, protective technology and clarity enhancements. Your lens solution will be recommended depending on your visual correction needs as well as your lifestyle requirements.

Your optician will be able to recommend the best visual solution for your budget that meets your visual needs.

Why is my eyesight getting weaker?

There can be any number of reasons for your eyes becoming weaker.

Age, genetics, lifestyle, eye conditions and harmful light can all affect your vision. For some eye conditions, eye sight can improve with the right treatment. Wearing the correct lenses for your prescription will give you the best vision possible.

Will wearing glasses make my eyesight weaker/worse?

Refractive errors will progress regardless of whether you wear glasses or not. Wearing the correct lenses will help you to see better. When adults wear the wrong prescription, it may cause eye strain, but it will not make their vision worse, however, if children wear the wrong prescription, it can make myopia progress faster.

What is astigmatism?

The front surface of an average eye is spherical like a football. People with astigmatism have eyes shaped more like a rugby ball. This means that the image formed at the back of the eye is not sharply focused.

I have something in my eye, what should I do?

Do not rub your eye, use cotton swabs or sharp things like tweezers to remove the object. Start by washing  your hands and if you wear contact lenses, remove them.
Check your eye by opening it wide and look into a mirror to find the object. If you cannot see the object start by pulling your lower lid down and look up into a mirror, if you still cannot see the object lift your upper lid up and look down into a mirror.
If the object in your eye is small bit of dirt, sand, makeup or a fibre; there are a few things you can do to get it out.
If the speck is stuck in your upper eyelid, pull your upper eyelid down over your lower eye lid and let go. 
If the speck is stuck in your lower eye lid pull the eye lid out and press on the skin underneath so you so the inside of the eye lid. If you see the piece of dirt or fibre you can try to remove it with a damp cotton ball. Be careful not to touch your eyeball. 
You can also use a saline solution specifically designed to help clean dirt from your eye.
You should seek immediate medical attention if you get harsh chemicals in your eye, something has pierced your eye, your vision changes, your eye is bleeding, you cannot remove the object or your eye does not feel any better once you have removed the object.

What should I do if I have double vision?

Double vision is when you look at an object but can see two images. It can affect one eye or both eyes. If you experience double vision you should contact your local optician who will be able to diagnose, determine the cause and can provide treatment.

What does it mean if I have 6/6 vision?

6/6 vision is a term used to express the clarity or sharpness of vision measured at a distance of 6 metres. It means you that you are able to read at a distance of 6 metres what a normal adult person with normal vision is able to read from a distance of 6 metres. It is also referred to 20/20 vision in imperial measurements as it is measured by 20 feet.

What does it mean if I am shortsighted?

Short-sightedness affects the ability to see distant objects. You may be able to see close up objects clearly, but objects that are in the distance may look blurry or out of focus. 

What does it mean if I am longsighted?

Long-sightedness affects the ability to see close up objects. You may be able to see distant objects clearly, but objects that are close up may look blurry or out of focus. 

What are varifocal lenses?

Lenses that correct your sight for distance, reading and everything in between.

What are single vision lenses?

Lenses that correct your vision if you suffer with long-sightedness or short-sightedness.

What age should children first visit an optician?

Your child’s eyes can be checked at multiple stages as they grow up. Eye tests may be suggested within 72 hours of birth, between 6-8 weeks, between 1-2 years and between 4-5 years. Even if your child's vision seems good, it's worth taking them for an eye examination when they reach school age. If you have any concerns about your child's vision you should contact your local optician for further advise. 

When will I know the results of an eye examination?

Normally straight away but your optician will inform you if this is longer.

Where should I go for an eye examination?

Find an optician local to you by using our optician finder.

How long should an eye examination take?

This can vary but you should allow 30-60 minutes for a standard examination.

Do I need to do anything before an eye examination?

Your optician will inform you if you need to bring anything to the examination.

How often should I have an eye examination?

Most opticians recommend you have your eyes examined every 2 years.