Why Is Cataract Surgery Usually Performed One Eye at a Time?

Schedule your eye exam today!

What Is a Cataract?

A cataract is a clouding of the clear lens inside your eye, leading to blurry or dim vision. Cataracts often develop slowly as a part of the aging process but can also be caused by other factors.

You may notice faded colors, difficulty seeing at night, increased sensitivity to glare, or trouble reading.

Maximizing Patient Safety and Outcomes

Operating on one eye at a time greatly reduces the risk of rare but serious complications affecting both eyes at once. This approach prioritizes your safety and helps ensure the best possible vision results.

Serious complications such as endophthalmitis, a severe eye infection, are extremely rare yet can threaten vision in both eyes if surgeries are performed simultaneously.

By treating each eye separately, the surgeon can ensure the first eye heals safely before proceeding with the second.

If any changes are needed based on how the first eye responds to surgery, your doctor can modify the plan for the second eye to maximize your outcome.

Allowing for Healing and Adjustment

Your operated eye needs time to heal and adjust to the new artificial lens before the second procedure is performed.

The waiting period between surgeries ranges from a few days to several weeks, tailored to your recovery and preferences.

This allows your surgeon to watch carefully for issues such as infection or swelling and address them promptly if they arise.

Having one healthy eye during recovery helps you remain independent and safely perform daily activities like reading, cooking, and using the computer.

When Are Both Eyes Treated Together?

In some uncommon cases, both eyes may be operated on in the same session. This is only considered when highly specific safety protocols can be followed.

This option may be considered for certain patients with severe cataracts in both eyes or those for whom traveling is very difficult.

Your surgeon will discuss the benefits and risks to determine if this approach is appropriate for you. However, most surgeries are separated to maximize safety and comfort.

What to Expect After Surgery

Most people notice significantly clearer vision within a few days after the procedure and follow a specific aftercare plan.

Most notice vision improvement within a few days after surgery.

You will use prescribed eye drops and attend follow-up visits to check on healing and prevent complications.

It is important to avoid rubbing your eyes and to follow all recovery instructions carefully.

Contact your surgeon immediately if you have pain, increasing redness, or sudden changes in vision.

Frequently Asked Questions

Answers to common cataract surgery questions can help you feel prepared and informed.

While an artificial lens is implanted to replace the cloudy one, you may still need glasses for certain activities, depending on the type of lens and your visual needs.

Most procedures last 10–20 minutes per eye, but you’ll spend several hours at the center for preparation and recovery.

Local anesthesia is typically used, usually as numbing eye drops or a small injection. You’ll remain awake and comfortable, with sedation if needed.

You’ll need someone to drive you home after surgery. Your surgeon will let you know when it’s safe to resume driving, typically after your follow-up visit.

You can often resume light activities within a day or two, but should avoid heavy lifting or strenuous exercise for a few weeks or as instructed by your surgeon.

Temporary discomfort, mild itchiness, or blurry vision are normal and improve within a week. Serious side effects, like vision loss or severe pain, should be reported right away.

Your surgeon will review your current medications and may recommend pausing some, such as blood thinners, before surgery. After surgery, you’ll be prescribed eye drops.

A cataract will not return, as your natural lens is removed. Rarely, the membrane behind the lens implant can cloud, but this is easily treated with a simple laser procedure.

Most patients report little to no pain, though some pressure or mild discomfort is possible during or after the procedure.

Surgery is usually recommended when cataracts affect daily life and can’t be improved with glasses. If you notice difficulties with reading, driving, or recognizing faces, talk with your eye care provider.

People with conditions like glaucoma, diabetic retinopathy, or macular degeneration may face special risks. Always share your full health history so your procedure can be tailored for optimal safety.

Personalized, Compassionate Care You Can Trust

At Alden Leifer, MD and Associates, serving Paterson, Passaic, Bergen, and Essex Counties since 1987, your vision is our priority. Our experienced ophthalmology team provides education, respect, and practical support at every step, helping you feel confident and comfortable. Our patients’ high satisfaction and our nearly 40 years of service reflect our commitment to helping you see well today and for years to come. “See great till 98.”

"I had cataract surgery from Dr. Leifer which was surprisingly an awesome experience! I was so nervous going in but that was soon gone with how i was handled. Dr. Leifer is very personable, knowledgeable and patient. I can't wait to get my other eye done!"

★★★★★

"He helped me with my severe dry eyes problem. I want to start by saying thank you doctor Leifer. He is a great eye doctor, very attentive and hears your needs, overall want to thank him on my cataract surgery and laser surgery. I will say he is the far best doctor will definitely recommend"

★★★★★

Schedule your eye exam today!