Like short- or long-sightedness, astigmatism is a very common and treatable cause of blurred vision.
Red and swollen eyelids – particularly around the edges – that can be caused by an infection or a skin condition. It’s not serious but it can lead to further problems.
Blurry vision can be a symptom of an existing eye condition, or a sign that you need a new pair of glasses.
Cloudy patches in the lens of the eye, causing blurry, misty vision. Usually more common in people over 65.
Sometimes confused with a stye, a chalazion is often a painless swelling or lump that develops in your eyelid. It’s not serious, and will usually disappear on its own.
Unlike blurry vision, cloudy vision is when objects appear as if you’re looking through a cloudy piece of glass. It can also result in colour dullness and halos.
Or colour vision deficiency, happens when people find it diffiult to distinguish between certain colours. You’ll know it as colour blindess, but it’s very rare to be totally colour blind.
Computers are a big part of our everyday lives, but they can have quite an effect on our eyes. See our tips on how best to manage and reduce computer eye strain.
Inflammation of the membrane that covers the eye and inside of the eyelids, making the eye look red with a burning or itchy feeling.
A painful sore on the cornea (the clear layer at the front of your eye). It might feel like you have something in your eye and looks like a grey or white spot.
A condition caused by diabetes that affects the small blood vessels in the eye, damaging the retina, which is vital for sight.
Dilated Pupils (Mydriasis)
Pupil dilation is normal and happens when light levels drop. However, fixed dilated pupils can be a sign of something more serious.
Double vision, or diplopia, happens when you see two versions of the same image. There are two types: monocular and binocular.
Dry eye syndrome
Occurs when your eyes don’t make enough tears or they evaporate too quickly causing dry, red and irritated eyes.
Dyslexia and vision
Dyslexia is a learning difficulty that can have an impact on vision by causing problems with reading, writing and spelling, making text appear blurry or jumbled.
Inflammation of the tissues inside the eye. This is a rare eye condition, but potentially serious, so it is usually treated as an emergency.
An involuntary muscle spasm in the eyelid, usually in one eye. It can be bothersome, but it’s completely harmless and painless, and will go away on its own.
Feeling of something in the eye
Feel like there’s something in your eye, even if there’s not? We look at some common causes for gritty and sore eyes.
Floaters (black dots in vision)
Seeing black dots in your vision, also known as floaters, are common and usually nothing to worry about. Find out more about their causes and symptoms here.
A group of diseases affecting the optic nerve often associated with a build up of pressure in the eye. There are two types: chronic and acute.
An introduction to the causes of glaucoma: designed to answer all the questions you may have.
Understanding how glaucoma is diagnosed can be challenging. Here, you’ll find what you need to know about the diagnosis process, including what tests to expect.
Also known as allergic rhinitis, hay fever is an allergic reaction to pollen – a fine powder released by plants during their reproductive cycle
Iritis (Anterior Uveitis)
An inflamation of the iris that can result in pain, redness, light sensitivity and blurred vision.
A common symptom of certain eye conditions and allergies, itchy eyes are generally short-lived and easy to treat.
This condition causes the usually round cornea to weaken at the centre, changing it to a cone-like shape. This can affect the way the eye focuses and can lead to blurred or distorted vision.
Also known as amblyopia, this condition is very common in children, and usually means that one eye is weaker than the other.
If you’re long-sighted (also known as hyperopia), you’ll find that you can see objects far away clearly, but those close by will be out of focus. It’s quite common and very easy to treat.