Age-related macular degeneration

Very common

Symptoms may include:

• Wavy or blurred vision
• Visual distortion
• Loss of central vision, with dark or blurry spots in the middle of vision

Cataract

Common

Symptoms may include:

• Clouded or blurred vision
• Difficulty in seeing during the night
• Sensitivity to light and glare

Diabetic retinopathy

Very common

A complication of diabetes where blood vessels in the eye are damaged. This may be with no symptoms initially but eventually may notice vision problems.

Symptoms may include:

• Eye floaters
• Black spots in the area of vision
• Loss of central vision

Glaucoma

Very common

A condition where the eye's optic nerve, which provides information to the brain, is damaged with or without raised intraocular pressure. If untreated, this will cause gradual vision loss.

Symptoms may include:

• Loss of peripheral or side vision
• Seeing halos around lights and glare in bright light
• Redness in the eye

Amblyopia

Common

A condition in which one eye cannot focus as clearly as the other, which is characterized by decreased vision.

Symptoms may include:

• An eye that wanders inwards or outwards
• Eyes that appear not to work together
• Poor depth perception...