Surgery is the only way to remove a cataract
A cataract cannot be reversed or dissolved with medication, eye drops, or supplements. Once the lens protein in your eye has clouded, it stays clouded. The only treatment that actually removes it is cataract surgery, where an ophthalmologist removes the clouded lens and usually replaces it with an artificial one.
This is not a new or experimental procedure. Cataract surgery is one of the most commonly performed surgeries in the world, with millions done each year in the United States alone. The surgery takes about 15 minutes, is done as an outpatient procedure, and has a high success rate for restoring vision.
If you have been told that vitamins, drops, or other products can cure your cataract, that claim is not supported by evidence. The cloudiness will not clear on its own, and waiting does not make surgery safer or more effective later.
Key Takeaways
- Cataract surgery removes the clouded lens and replaces it with an artificial lens implant, restoring clear vision in most cases.
- The surgery is outpatient, takes about 15 minutes per eye, and does not require an overnight hospital stay.
- You do not need to wait until a cataract is "ripe" or fully developed before having surgery—modern techniques work at any stage.
- Your eye doctor will measure your eye before surgery to determine the correct power of the artificial lens for your vision needs.
- Recovery takes a few weeks, during which you will use antibiotic and anti-inflammatory eye drops and avoid strenuous activity.
How cataract surgery works
The surgeon makes a small incision in the front of your eye, usually about 2 to 3 millimeters wide. Through this opening, they use an ultrasound probe (a technique called phacoemulsification) to break up the clouded lens into tiny pieces, which are then suctioned out.
Once the clouded lens is removed, the surgeon inserts a folded artificial lens (called an intraocular lens implant) through the same small incision. The lens unfolds inside your eye and settles into place. In most cases, the incision is so small it does not require stitches and closes on its own.
Before surgery, your eye doctor will measure your eye using a special machine to determine the correct power of the artificial lens. This measurement is crucial because it determines how well you will see at different distances after surgery. You and your doctor can discuss whether you want to prioritize distance vision, reading vision, or a balance of both.
What to expect before surgery
Your eye doctor will perform a complete eye exam to make sure surgery is safe for you and to rule out other eye conditions that might affect your results. They will ask about your medical history, current medications, and any allergies. Tell them about all medications you take, especially blood thinners like aspirin or warfarin.
A few days before surgery, you will begin using antibiotic eye drops to reduce the risk of infection. Your doctor will give you specific instructions about when to stop eating and drinking before surgery, usually a few hours beforehand. You will need someone to drive you home, since you cannot drive the day of surgery.
On the day of surgery, you will be given numbing drops so you feel pressure but not pain. You will be awake during the procedure and may see light and shadows, but you will not see the surgical instruments or the details of what is happening.
Recovery and what happens after surgery
Your vision will be blurry immediately after surgery, but it will begin to improve within a few days. Most people notice significant improvement within one to two weeks, though full healing takes about four to six weeks. During this time, you will use prescribed eye drops—usually an antibiotic and an anti-inflammatory—several times a day.
You will need to avoid strenuous activity, heavy lifting, and bending over for the first week or two. You should not rub your eye or get water in it while showering. Your doctor will schedule follow-up visits to check your healing and monitor your eye pressure.
If you have a cataract in both eyes, your doctor will typically operate on one eye first, wait for it to heal, and then schedule surgery on the other eye a week or two later. This allows your vision to stabilize in the first eye before addressing the second.
Artificial lens options and what they cost
The basic artificial lens covered by Medicare and most insurance plans is a monofocal lens, which provides clear vision at one distance—usually far away. If you choose a monofocal lens set for distance vision, you will likely need reading glasses for close work.
Premium lens options exist that can reduce your dependence on glasses, but they cost extra and are not covered by insurance. Multifocal lenses allow you to see at multiple distances, though some people experience glare or halos around lights at night. Toric lenses correct astigmatism (an irregular corneal shape) at the same time. These options typically add $500 to $2,500 per eye out of pocket, depending on the lens type and your location.
Discuss these options with your eye doctor before surgery. They can explain which lens types might work best for your eyes and your lifestyle, and what the actual cost will be at your surgery center.
Risks and complications
Cataract surgery is very safe, but like any surgery, it carries small risks. The most common complication is posterior capsule opacification, where the membrane behind the artificial lens becomes cloudy months or years later. This happens in about 20 percent of people and is easily treated with a quick laser procedure in your doctor's office.
Serious complications are rare but can include infection, bleeding, or swelling inside the eye. Infection occurs in fewer than 1 in 1,000 surgeries. Retinal detachment—where the light-sensitive tissue at the back of the eye pulls away—is also uncommon but more likely in people with high myopia (severe nearsightedness) or a family history of retinal problems.
Tell your surgeon about any eye conditions you have, including glaucoma, macular degeneration, or previous eye surgery. These do not necessarily prevent you from having cataract surgery, but your surgeon needs to know about them to plan the procedure and manage your expectations about the outcome.
When to have surgery
You do not have to wait until your cataract is fully developed or "ripe" before having surgery. Modern techniques work well at any stage. The right time for surgery is when the cataract is affecting your daily life—when you cannot read, drive safely, or do activities you enjoy because of blurred vision.
If your cataract is mild and not bothering you, you can wait. Your eye doctor will monitor it during regular exams. But if it is interfering with your work, hobbies, or independence, surgery can restore your vision and quality of life.
In rare cases, a cataract can cause other problems—such as increased eye pressure—that make surgery necessary even if your vision is not severely affected. Your eye doctor will let you know if this applies to you.
Frequently Asked Questions
Can cataracts come back after surgery?
No, the cataract itself cannot return because the clouded lens has been removed. However, the membrane that holds the artificial lens can become cloudy over time (posterior capsule opacification). This happens in about 20 percent of people and is easily treated with a quick laser procedure in your doctor's office.
Will I still need glasses after cataract surgery?
It depends on the type of lens implant you choose and your eye's shape. With a standard monofocal lens, most people need reading glasses for close work. Premium multifocal lenses can reduce this need but cost extra and are not covered by insurance. Your doctor can discuss which option fits your lifestyle and budget.
How long does it take to see clearly after surgery?
Your vision will be blurry immediately after surgery, but you should notice improvement within a few days. Most people see significant improvement within one to two weeks. Full healing and stable vision typically take four to six weeks. Your doctor will schedule follow-up visits to monitor your progress.
What if I have cataracts in both eyes?
Your surgeon will operate on one eye first and wait for it to heal before operating on the other. This usually means waiting one to two weeks between surgeries. Operating on both eyes at once is not standard practice because it increases the risk of complications affecting both eyes.
Is cataract surgery covered by insurance?
Medicare and most private insurance plans cover the cost of basic cataract surgery and a standard monofocal lens implant. You will likely pay a copay or coinsurance. Premium lens options (multifocal or toric) are not covered and cost extra out of pocket. Call your insurance company or ask your surgery center about your specific coverage.