Your eyes should last you a lifetime.
You can help to keep your eyes in good working order by stopping or not smoking and by a good diet with plenty of green, leafy vegetables.
Sometimes your eyes could be affected by illnesses or conditions you were born with or which can change as you grow older.
Problems with your eyesight can develop at any time in your life, but you’re more likely to have a problem if you are over 40.
Conditions like glaucoma, macular degeneration and cataract are all more frequent in older people. You are also at increased risk if there are eye conditions in your family, and people from African-Caribbean and South Asian ethnic groups have a higher risk.
You can read our advice on some of the main conditions that affect eyes right here on this website.