Cataract surgery — Patient information · Ruqelo Health
Surgery·Surgery
Cataract surgery
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Educational summary — not medical advice. Discuss with your healthcare provider.
Informed by recognized medical guidance
Overview
A cataract is a clouding of the lens inside your eye, like looking through a foggy window. It happens when the clear lens becomes less transparent, making your vision blurry or dim. Cataract surgery is a safe, common procedure to remove the cloudy lens and replace it with a clear artificial one.
Key facts
Cataract surgery is one of the most common and successful surgeries in the world.
The surgery usually takes about 15–30 minutes and is often done under local anaesthetic (you are awake but your eye is numb).
Most people see much better after surgery, though some may still need glasses for reading or driving.
Yes, cataracts are very common, especially as people get older. By age 80, more than half of adults have had a cataract or cataract surgery.
Cataracts mainly affect older adults, but they can also occur in younger people, children, or babies (congenital cataracts). People with certain health conditions, like diabetes, or who have had an eye injury are also at higher risk.
Questions about this article
Symptoms
Call emergency services immediately if you notice:
Sudden vision loss or a curtain-like shadow over your vision (could be retinal detachment or stroke)
Sudden severe eye pain with headache and nausea (could be acute glaucoma)
See a doctor urgently (same day) if you notice:
⚠Sudden new floaters (spots, cobwebs) or flashes of light in your vision
⚠Redness or swelling in the eye that does not go away after a few days
⚠Eye pain or sensitivity to light that lasts more than a day
Common symptoms
Blurry or cloudy vision, like looking through a smudged window
Colors look faded or yellow
Poor night vision, trouble seeing in dim light
Glare or halos around lights, especially at night
Double vision in one eye
Frequent changes in glasses or contact lens prescription
Symptoms in children
A white or grayish pupil (instead of black)
Poor visual tracking or not focusing on faces
Crossed eyes (strabismus)
Shaky eyes (nystagmus) in infants
Symptoms in older adults
Progressive blurring that makes reading, driving, or recognizing faces harder
Increased sensitivity to glare from sunlight or headlights
Seeing halos around lights
Difficulty seeing at night or in low light
Causes
Main causes
Aging – the lens naturally becomes less clear over time, usually after age 60
Injury to the eye (traumatic cataract)
Certain medical treatments like radiation or long-term steroid use
Inherited genetic conditions or problems present at birth (congenital cataract)
Risk factors
Being over 60 years old
Having diabetes
Smoking tobacco
Long-term exposure to sunlight without eye protection (UV rays)
Heavy alcohol use
A family history of cataracts
Previous eye surgery or eye injury
When to see a doctor
See a doctor urgently if:
Sudden loss of vision in one or both eyes
Eye pain or redness with vision changes
Flashes, floaters, or a dark curtain over your vision
Book a routine appointment if:
If you notice gradual blurring, glare, or trouble with night driving
If you need to change your glasses prescription often
At your regular eye check-up, especially if you are over 60 or have diabetes
Cataracts develop slowly, so you have time to discuss options with your eye doctor. You do not need surgery immediately unless your vision affects daily activities like reading, driving, or seeing faces clearly. Your eye doctor can help you decide the right time.
Diagnosis
An eye doctor (optometrist or ophthalmologist) will do a simple, painless eye exam to check for cataracts. They will ask about your symptoms, medical history, and test your vision.
Tests that may be done
Visual acuity test – reading letters on an eye chart
Slit-lamp exam – a microscope with a bright light to see the lens and other parts of your eye
Retinal exam – after dilating (widening) your pupils with eye drops, the doctor looks at the back of your eye
Tonometry – a puff of air or a gentle probe to check eye pressure (to rule out glaucoma)
What to expect at your appointment
The exam is quick and usually painless. You may have blurry vision for a few hours after the drops wear off, so it is helpful to have someone drive you home. Your doctor will explain the results and discuss treatment options if a cataract is found.
Treatment
The only effective treatment for cataracts is surgery. There are no medicines or eye drops that can reverse or cure a cataract. Surgery removes the cloudy lens and replaces it with a clear artificial lens. The surgery is very safe and helps most people see much better.
Self-care at home
Use brighter lighting at home to help with reading and daily tasks
Wear anti-glare sunglasses when outdoors to reduce discomfort from sunlight
Use a magnifying glass or large-print books to help with reading
Have regular eye exams to track how your vision changes
Medical treatments
Surgery is the main medical treatment. There are different types of artificial lenses (intraocular lenses) that can be chosen based on your eye health and visual needs. Some lenses correct for distance vision, near vision, or both. Your surgeon will discuss which option might be best for you. No medications can clear a cataract, but your doctor may treat other eye conditions (like dry eye or glaucoma) that can affect your symptoms.
When is surgery considered?
Surgery is recommended when cataracts start to interfere with your daily life, such as making it hard to drive, read, work, or enjoy hobbies. You do not have to wait until the cataract is 'ripe' – you and your doctor can decide the best time for you.
Living with this condition
Before surgery, try to adapt with good lighting, anti-glare sunglasses, and magnifiers. After surgery, most people notice improvement within a few days to weeks. You will need to use eye drops as directed and avoid getting water in your eye for a few weeks. You will usually have a follow-up visit to check your healing.
Lifestyle tips
Wear sunglasses or a hat with a brim to reduce glare and protect your eyes from UV light
Avoid rubbing your eyes, especially after surgery
Do not lift heavy objects or do strenuous exercise for about a week after surgery, as this can increase pressure in the eye
Follow your doctor’s advice about when you can drive, usually after your vision is stable
Diet and exercise
A healthy diet rich in fruits, vegetables, and antioxidants may help slow cataract formation, but it will not reverse an existing cataract. After surgery, light walking is usually fine, but avoid contact sports or swimming until your doctor gives the OK. Stay hydrated and manage any health conditions like diabetes.
Mental health and emotional wellbeing
Vision loss from cataracts can feel frustrating or isolating, especially if it limits your activities. Surgery often restores vision and quality of life, but it is normal to feel anxious before the procedure. Talk to your doctor if you have concerns. Most people feel much better after recovery.
Prevention
There is no sure way to prevent cataracts, but you can lower your risk. Protect your eyes from UV rays with sunglasses and a hat, do not smoke, manage conditions like diabetes, and eat a healthy diet rich in fruits and vegetables.
Vaccines
No vaccines are available for cataracts or cataract surgery.
Screening programmes
Regular eye exams are important, especially as you get older or if you have risk factors. Screening can detect cataracts early, even before you notice symptoms. An exam every 1–2 years is recommended for adults over 60 or those with diabetes.
Complications
If left untreated
Gradual worsening of vision, eventually leading to blindness in the affected eye
Increased risk of falls or accidents because of poor vision
In some cases, advanced cataracts can cause inflammation or increased eye pressure (glaucoma)
Long-term outlook
With surgery, the outlook is excellent. Cataract surgery is one of the safest and most successful surgeries available. Over 90% of people have improved vision after surgery. Most can return to normal activities within a few weeks. Even without surgery, vision loss from cataracts is reversible only with surgery, so it is never too late to seek help.
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Always verify with your doctor
Health guidelines vary by country and region. The information in this article is based on international clinical guidelines but may not reflect the specific guidelines, medications, or practices in your country. Always discuss your health concerns with your own doctor or healthcare provider, and refer to your local national health guidelines where available.
Important notice This information is for educational purposes only. It does not replace professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider about your specific situation. If you are experiencing a medical emergency, call your local emergency services immediately.
Sources and guidance
This article is educational and is prepared with reference to recognized health information and clinical guidance sources where available. Specific source links may vary by topic.
Last updated: July 9, 2026
Educational note: This information is for education only and is not a diagnosis.
Use it to support, not replace, advice from a licensed clinician.
If symptoms are severe, worsening, or urgent, call your local emergency number or seek emergency care.
