Eye
Medicines for Cataracts
Clouding of the eye's natural lens that gradually blurs vision — very common with age and readily treated with a quick, highly successful operation.
Education and reference only. This explains which medicines are used and why, in plain language — it deliberately contains no doses and is not a substitute for advice from your doctor or pharmacist. Always discuss your own treatment with a qualified clinician, and check the BNF and the product labelling for prescribing detail.
Quick answer
What is Cataracts?
A cataract is a clouding of the lens inside the eye, which is normally clear. As the lens becomes cloudy, vision gradually becomes blurred or misty, colours may look faded, and people often notice glare or haloes around lights (which can affect night driving) and needing brighter light to read.
- How it is treated: In the early stages, when a cataract has little effect, no treatment is needed, and updating glasses and using good lighting can help.
- Self-care: Wearing sunglasses in bright sun, not smoking, managing conditions like diabetes, and using good lighting and up-to-date glasses can help.
- When to seek help: See an optician for gradually blurring or misty vision, glare, or difficulty with night driving, for assessment and referral if needed.
What it is
A cataract is a clouding of the lens inside the eye, which is normally clear. As the lens becomes cloudy, vision gradually becomes blurred or misty, colours may look faded, and people often notice glare or haloes around lights (which can affect night driving) and needing brighter light to read. Cataracts are extremely common with increasing age — most people develop them eventually — and can also occur earlier with certain conditions (such as diabetes), eye injuries, some medicines, or from birth. They usually develop slowly and painlessly in both eyes, though often not equally. They are not dangerous to the eye but progressively affect sight, and they are very treatable.
How it is treated
In the early stages, when a cataract has little effect, no treatment is needed, and updating glasses and using good lighting can help. When a cataract affects vision enough to interfere with daily life — reading, driving, hobbies — the definitive treatment is a straightforward, very successful operation to remove the cloudy lens and replace it with a clear artificial one. It is usually done under local anaesthetic as a day case, takes under an hour, and most people notice clearer vision within days. Complications are uncommon. There are no eye drops or exercises that cure cataracts; surgery is the effective treatment when needed.
For this condition, these medicines
Medicine classes used for Cataracts
Each links to a full, dose-free guide — what it is, how it works, who can and cannot use it, side effects, interactions and FAQs.
Beyond medication
Lifestyle and self-care
Wearing sunglasses in bright sun, not smoking, managing conditions like diabetes, and using good lighting and up-to-date glasses can help. Regular eye tests detect cataracts and other eye conditions.
When to get help
When to see a doctor
See an optician for gradually blurring or misty vision, glare, or difficulty with night driving, for assessment and referral if needed. Seek urgent care for sudden vision loss, which is not caused by cataracts.
Not sure how urgent it is? It is always OK to call NHS 111 for advice, day or night.
Answers
Cataracts: frequently asked questions
How are cataracts treated?
When they affect daily life, cataracts are treated with a quick, very successful operation to replace the cloudy lens with a clear artificial one — usually as a day case under local anaesthetic. There are no drops or exercises that cure them.
Are cataracts dangerous?
They are not dangerous to the eye itself, but they progressively blur vision. The good news is that cataract surgery is one of the most common and successful operations, restoring clear vision for most people.
Keep reading
Related articles
Sources
Where this is drawn from
- NHS — Cataract surgery
- Royal College of Ophthalmologists guidance
Related conditions
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