Glaucoma is characterised by raised pressure inside the eye which can damage the optic nerve - the nerve at the back of the eye, reducing the field of vision and the ability to see clearly.
Sometimes the delicate cells of the macula become damaged and stop working. We do not know why this is, although it tends to happen as people get older. This is called macular degeneration, and often age-related macular degeneration.
Cataracts are extremely common. Most people over 65 years of age will develop a cataract. A cataract is the result of the lens inside your eye becoming opacified, which results in 'cloudy' vision.
Dry eyes occur when either the eyes do not produce enough tears, or the quality of the tears that are produced is poor, meaning they evaporate very quickly, leaving the eyes dry. One of the most common symptoms of dry eye is excess watering of the eyes - which may sound contradicting!
Blepharitis is the inflammation of the eyelid margins. This is a very common condition and can affect people of all ages. There is no definitive cure for blepharitis but it can be managed and controlled in a number of ways. Blepharitis and dry eye disease are closely linked.