A lazy eye, also known as amblyopia, is a childhood condition that occurs when the vision in one eye does not develop properly. Read more


Cataracts occur when changes in the lens of the eye cause it to become less transparent. This results in cloudy or misty vision. Cataracts are the leading cause of blindness globally but can be easily treated. Read more

Charles Bonnet Syndrome

Charles Bonnet Syndrome (CBS) affects many people with sight loss and causes them to experience visual hallucinations. The hallucinations are often distressing and continuous – the exact causes are still unknown. Read more

Children's Eye Diseases

Common signs of vision troubles in children include frequently rubbing their eyes, squinting, tilting or turning the head to look at objects, wandering eyes, or squeezing eyes. Read more

Corneal Disease

The cornea is the clear tissue at the front of the eye that lets in light and helps focus it on the retina so that we can see. Disease or injury can make the cornea cloudy or distorted in shape, causing a loss of vision. A cornea transplant replaces diseased corneal tissue with a disc of healthy tissue from a donor. Read more

Diabetic retinopathy

Diabetic retinopathy is a common complication of diabetes. It occurs when high blood sugar levels damage the cells at the back of the eye, known as the retina. If it is not treated, it can lead to blindness. Read more

Dry Eye Syndrome

Dry eye syndrome, or dry eye disease, is a common condition that occurs when the eyes don't make enough tears, or the tears evaporate too quickly. This leads to the eyes drying out and becoming red, swollen and irritated. Dry eye syndrome is also known as keratoconjunctivitis sicca. Read more


Glaucoma is the most common cause of sight loss amongst those of working age. Pressure is raised in the eye which damages the optic nerve and increasingly causes sight loss. New treatments, including improved eye drops and surgical techniques to reduce this pressure in the eye are being researched. Read more