Symptoms and types
Infections and irritation
Conjunctivitis is a common inflammation of the conjunctiva, the thin clear tissue that lies over the white part of the eye and lines the inside of the eyelid.
Find out the possible causes for swollen eyes, and what you might be able to do about it.
Dry eyes can be painful. Learn about causes and treatments.
Top causes of itchy eyes and how to stop eyes itching.
Learn about the symptoms of eye strain and how to prevent it.
Staring at a computer screen for long periods of time can put a strain on your eyes.
Read about the causes, symptoms, diagnosis and treatment of eye pain.
A stye is a spot or abscess that forms in either the upper or lower eyelid.
A chalazion, also known as a meibomian cyst, is a lump in the eyelid that is caused by inflammation of a gland within the skin.
Uveitis is inflammation of the middle layers of the eye, also called the uveal tract or uvea.
Blepharitis is an inflammation of the eyelids, usually caused by an excess growth of bacteria that is usually found on the skin and occasionally caused by allergies.
The iris is a circular, pigmented membrane that gives the eye its colour and forms the pupil. If this gets inflamed, it is called iritis.
When the cornea bulges outward like a cone, this called keratoconus.
A corneal ulcer is an open sore on the cornea, the thin clear structure overlying the iris - the coloured part of your eye.
Learn about herpes viruses, including shingles, and the eyes.
When you have a blocked tear duct, the tubes that normally drain tears from the eye to the nose may become obstructed or don’t open properly.
Itchy, irritated eyes after a holiday? It might be pterygium. Find out more.
Read more about scleritis, or the inflammation of the white part of the eye.
The production of a tear film, known medically as lacrimation, primarily serves to lubricate and protect the eyes.
Get answers from Dr Rob Hicks.
Learn more about this common, harmless muscle spasm.
A black eye is a bruise to the eyelid skin caused by blunt trauma to the eye region of the face.
Find out more about subconjunctival haemorrhage (bleeding in the eye).
A corneal abrasion is a painful scrape or scratch on the surface of the clear part of the eye.
Bleeding in the front compartment of the eye from trauma is called hyphaema.
Retinal detachment is a very serious condition that occurs when the retina pulls away from its supporting tissues.
Ultraviolet radiation from the sun and welder’s torches are just two possible causes of corneal flash burns.
Chemical exposure to any part of the eye or eyelid may result in a chemical eye burn.
Ageing and the eyes
A cataract is a clouding of the lens of the eye that can impair vision.
Age-related macular degeneration is the leading cause of severe vision loss in people over 60.
Although life is reputed to begin at 40, so do many eye problems.
Aspirin may cause vision problems in older people. Learn more.
A macular hole is a small gap which opens up in the macula, found at the centre of the retina.
Glaucoma is an eye condition that develops when too much fluid pressure builds up inside the eye. It tends to be inherited and may not show up until later in life.
Acute primary angle-closure glaucoma is caused by a rapid or sudden increase in pressure inside the eye.
Secondary glaucoma includes traumatic glaucoma.
Normal-tension glaucoma is a unique condition in which optic nerve damage and vision loss have occurred despite a normal pressure inside the eye.
Blurred vision can be caused by a number of different things, from conditions that simply need correcting with glasses or contact lenses, to medical emergencies like acute glaucoma.
Astigmatism is characterised by an irregular curvature of the cornea.
Floaters are tiny spots that seems to drift in front of the eyes but do not block vision.
Amblyopia, also known as “lazy eye”, is a condition that occurs in children when one eye has poorer vision than the other.
Retinoblastoma is a malignant tumour on the retina, the light-sensing part of the eye.
Ocular hypertension usually refers to any situation in which the pressure inside the eye, called intraocular pressure, or IOP, is higher than normal.
If the cornea of your eye becomes damaged through disease, infection or injury, the resulting scars can interfere with vision by blocking or distorting light as it enters the eye.
Presbyopia is the loss of the eye's ability to change its focus to see objects that are near.
Multiple sclerosis vision problems
Visual and eye problems can be the first noticeable multiple sclerosis symptoms in around 1 in 5 cases.