Cataract Surgery
In cataract surgery the cloudy natural lens of the eye is removed and replaced with a clear artificial lens. It is usually done under anaesthetic eye drops in about 20–30 minutes and does not require a hospital stay.
How is the operation done?
In a cataract, the eye's natural lens, which focuses light, becomes cloudy. During surgery this lens is removed and a clear intraocular lens is implanted.
- It is done in an operating theatre under anaesthetic eye drops and takes about 20–30 minutes.
- Today phacoemulsification or laser-assisted techniques are used; stitches are usually not needed.
- No hospital stay is required; patients usually go home the same day.
Aftercare
- Eye drops are started straight after surgery and used for about 20–30 days.
- Keep water out of the eye for the first week.
- Avoid heavy work and stay in clean environments.
- Do not swim in the sea or pools for about 1 month.
Types of intraocular lens
The lens is chosen with your doctor according to the structure of your eye and your expectations:
- Monofocal: usually aimed at distance vision; glasses are needed for near.
- Bifocal and trifocal (multifocal): aimed at distance and near, with trifocals also covering computer distance (popularly called a 'smart lens').
- EDOF (extended depth of focus): aims for continuous vision from distance to intermediate; glasses may sometimes be needed for near.
- Toric: also corrects astigmatism; toric versions of monofocal, multifocal and EDOF lenses are available.
Frequently asked questions
How long does cataract surgery take?
About 20–30 minutes under anaesthetic eye drops.
Do I need to stay in hospital?
No; patients usually go home the same day.
When can I swim in the sea?
After about 1 month; keep water out of the eye for the first week.
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This page is for general information only and does not replace a medical consultation. Anatomy and treatment plans differ from patient to patient.