Cataract Surgery from Pre-Op to Post-Op
Understanding Cataracts and When Surgery Becomes Necessary
Cataracts develop when the natural lens inside your eye becomes cloudy, making it harder to see clearly. You may notice that colors look faded, lights have halos around them, or reading becomes more difficult even with glasses.
- Blurry or cloudy vision that does not improve with new glasses
- Trouble driving at night due to glare from headlights
- Difficulty reading small print or recognizing faces
- Colors appearing dull or yellowish
While cataracts can affect anyone, certain factors make them more likely to develop. Age is the most common risk factor, with most people experiencing some lens clouding after age 60.
Other risks include diabetes, prolonged use of steroid medications, smoking, excessive sun exposure, and a family history of cataracts. Other risk factors include prior eye injury or surgery, chronic uveitis, high myopia, and exposure to radiation. We will review your medical history to assess your individual risk.
During a comprehensive eye exam, we use several tests to determine if you have cataracts and how much they affect your vision. We shine a bright light into your eye and use a special microscope called a slit lamp to examine the lens closely.
We also perform a visual acuity test to measure how well you can see at different distances. We may perform glare testing, macular OCT imaging, and keratometry or corneal topography to fully assess how the cataract and any other eye conditions affect your vision. Additional tests may include a dilated eye exam and contrast sensitivity testing to understand how cataracts impact your daily activities.
Not all cataracts require immediate surgery. We typically recommend surgery when your vision loss interferes with your daily life and quality of living.
- You can no longer perform work tasks safely
- Driving has become difficult or unsafe
- Reading, watching television, or hobbies are impaired
- You have an increased risk of falls due to poor vision
Before deciding on surgery, we may explore other ways to manage your vision. These approaches can help you function comfortably until surgery becomes necessary.
- Update your glasses prescription and use brighter lighting or contrast enhancements
- Try anti-glare coatings or polarized lenses for night driving
- Use magnifiers or large-print options for near tasks
- Monitor your vision with regular follow-up visits until surgery becomes appropriate
What Happens Before Your Cataract Surgery
Before your surgery, we take precise measurements of your eye to determine the correct power and type of artificial lens you will need. These measurements include the length of your eye, the curve of your cornea, and the size of your pupil.
Modern technology allows us to use advanced instruments like optical biometry to get highly accurate readings. Pre-op planning often includes corneal topography or tomography to evaluate astigmatism and screen for corneal disease, and macular OCT to look for retinal conditions. We also assess the ocular surface for dry eye, since optimizing it improves measurement accuracy. These measurements ensure that your new lens will help you see as clearly as possible after surgery.
If you wear contact lenses, you may need to stop them before measurements. Soft lenses should be discontinued 3 to 7 days and rigid gas permeable lenses 2 to 4 weeks, depending on your case.
The intraocular lens, or IOL, is the artificial lens that replaces your cloudy natural lens. We will discuss different types of IOLs with you based on your vision needs and lifestyle.
- Monofocal lenses provide clear vision at one distance, usually far away
- Monofocal distance targeting usually means you will need reading glasses
- Mini-monovision can reduce reading-glass dependence by setting one eye slightly nearer
- Multifocal or extended depth of focus lenses may reduce your need for glasses at multiple distances
- Multifocal or EDoF lenses can increase halos or glare and are not ideal for significant macular disease, corneal irregularity, or moderate to advanced glaucoma
- Toric lenses correct astigmatism in addition to cataracts
- Light adjustable lens allows postoperative fine-tuning but requires several adjustment visits and wearing UV-protective glasses until lock-in
- Accommodating or enhanced monofocal lenses are options in selected cases
- Your insurance coverage and out-of-pocket costs may vary by lens type
Your eye health and measurements determine which lenses are appropriate.
For cataract surgery under topical anesthesia, most patients continue anticoagulants and antiplatelet agents. Do not stop any prescription medication unless instructed by your prescribing clinician and our anesthesia team.
Tell us about all prescription and over-the-counter medications and supplements. Alpha-1 blockers such as tamsulosin can affect the iris during surgery. If you have diabetes, we will give specific instructions about insulin or oral medications for the day of surgery. Continue your glaucoma drops unless told otherwise.
- Warfarin or DOACs such as apixaban and rivaroxaban
- Clopidogrel or aspirin
- Tamsulosin or other prostate medications
- Diabetes medications including insulin, GLP-1 receptor agonists, and SGLT2 inhibitors
- Herbal supplements like ginkgo, ginseng, and garlic
You will receive specific instructions about when to stop eating and drinking before surgery. Follow the instructions from our anesthesia team. Many centers allow clear liquids up to 2 hours before arrival and a light meal up to 6 hours.
Unless told otherwise, take your usual morning blood pressure medicines with a small sip of water and avoid alcohol. Plan to wash your face and remove any makeup, lotions, or perfumes. Wear comfortable, loose-fitting clothing with short sleeves or sleeves that can be easily rolled up.
You will not be able to drive yourself home after cataract surgery, so arrange for a responsible adult to accompany you to the surgery center and drive you home. This person should plan to stay during your procedure, which usually takes a few hours including preparation and recovery time.
Make sure your home is ready for your return by having your prescribed eye drops available and creating a clean, comfortable space to rest. Stock up on easy-to-prepare meals and clear any tripping hazards from your path. Bring a current medication list, sunglasses for the trip home, and your insurance card, and avoid bringing valuables.
The Day of Your Cataract Surgery: Step-by-Step
Plan to arrive at the surgery center at the time specified in your instructions, usually about an hour before your scheduled procedure. The staff will check you in and verify your identity and which eye is being treated.
You will change into a surgical gown and have your vital signs checked, including blood pressure and heart rate. This is a good time to ask any last-minute questions and let the team know if you feel nervous.
Before the surgery begins, the surgical team will place several types of eye drops in the eye being treated. These drops dilate your pupil, numb the surface of your eye, and help prevent infection.
- Dilating drops open your pupil wide so the surgeon can see inside your eye
- Numbing drops provide local anesthesia to keep you comfortable
- Your eye will be cleaned with povidone-iodine antiseptic, and many surgeons place an antibiotic inside the eye at the end of surgery. Preoperative antibiotic drops are not always required
- You may receive a mild sedative through an IV to help you relax
- Anesthesia may be topical only, sometimes with intracameral anesthetic. Some patients benefit from a periocular block
The actual cataract surgery typically takes between 10 and 20 minutes per eye. However, your total time at the surgery center will be longer because of preparation and recovery.
Plan for the entire visit to last about two to three hours. The procedure itself is brief.
During the surgery, you will be awake but relaxed from the sedative medication. Your eye will be numb, so you should not feel pain, though you may sense pressure or movement.
You will see bright lights and possibly some movement or colors, but you will not see the surgical instruments or any details of the procedure. The surgical team will talk to you throughout, letting you know what to expect at each step. If a block is used, the eye and eyelids may feel numb and heavy for several hours.
What Happens During the Cataract Surgery Procedure
The surgeon begins by making one or more very small incisions in the clear front part of your eye called the cornea. These openings are typically less than three millimeters wide and are placed at the edge of the cornea.
The tiny size of these incisions is important because they usually seal on their own without stitches. This technique promotes faster healing and reduces the risk of complications. Occasionally a suture is placed for added security and can be removed later in the clinic.
Once the incisions are made, the surgeon uses a technique called phacoemulsification to break up the cloudy lens. A small ultrasound probe is inserted through the incision and vibrates at a very high speed to fragment the cataract into tiny pieces.
As the lens breaks apart, a gentle suction removes the fragments from your eye. The thin outer capsule that held your natural lens is left in place because it will support your new artificial lens. In some cases, a femtosecond laser can assist with certain steps, although visual outcomes are similar to standard ultrasound techniques and added costs may apply.
After your natural lens has been completely removed, the surgeon carefully inserts the new intraocular lens through the same small incision. The IOL is folded or rolled up to fit through the tiny opening.
- The lens unfolds once inside your eye
- The surgeon positions it precisely within the capsule
- Flexible arms on the lens hold it securely in place
- The IOL becomes a permanent part of your eye
- If the capsule is not intact, a different lens position or type may be used
In most cataract surgeries, the incisions are self-sealing and do not require stitches. The cornea acts like a valve, naturally closing once the instruments are removed.
The surgeon may place a protective shield over your eye after the procedure to prevent accidental rubbing or bumping. This shield is usually worn for the first night and sometimes during naps for the first few days.
Recovery and Aftercare Following Cataract Surgery
Immediately after surgery, your vision may be blurry or hazy. This is completely normal and improves over the next few days as your eye heals.
You might notice some mild discomfort, scratchiness, or sensitivity to light. Many patients also see some redness in the white part of the eye, which typically fades within a week or two. A foreign body sensation, mild tearing, or seeing arcs of light can occur and usually improves quickly. Rest quietly at home for the remainder of the day after your procedure. Wear the protective shield while sleeping for the first week unless told otherwise.
We will prescribe medicated eye drops to prevent infection and reduce inflammation as your eye heals. You will typically use these drops several times a day for a few weeks.
- Wash your hands thoroughly before applying drops
- Tilt your head back and pull down your lower eyelid
- Squeeze one drop into the pocket without touching the dropper to your eye
- Wait at least five minutes between different types of drops if you use more than one
- Follow the exact schedule we provide, even if your eye feels fine
Some practices use a dropless approach by placing medication inside the eye during surgery, which changes or reduces the need for drops. Follow the specific plan you are given.
To protect your eye while it heals, avoid activities that could strain your eye, introduce infection, or cause injury. Most restrictions are temporary and last for one to two weeks.
- Avoid lifting more than 10 to 15 pounds and avoid bending with your head below your waist for the first week
- You may shower the day after surgery. Keep eyes closed to avoid soap and water in the eye
- No swimming or hot tubs for 1 to 2 weeks
- Avoid dusty or dirty environments for several days
- Avoid eye makeup for 1 week
- Do not drive until you feel safe and we confirm your vision meets legal requirements
We will schedule several follow-up visits to monitor your healing and ensure your eye is recovering well. Your first appointment is usually the day after surgery. Some patients may have an early pressure check the same day or within 24 to 48 hours based on risk.
Additional visits typically occur at one week and one month after the procedure. During these appointments, we check your vision, measure your eye pressure, and look for any signs of complications. These visits are important even if you feel your eye is healing perfectly.
While complications after cataract surgery are rare, certain symptoms require urgent attention. Contact our office immediately if you experience any of the following warning signs.
- Sudden decrease in vision or vision loss
- Severe pain that does not improve with over-the-counter pain medication
- Increasing redness, swelling, or discharge from the eye
- Flashes of light or a shower of new floaters
- A curtain or shadow moving across your field of vision
- Severe headache, nausea, or vomiting with eye pain
- Marked light sensitivity with worsening pain
- A white pupil or pus-like discharge
Most patients notice significant vision improvement within a few days of cataract surgery. However, it can take several weeks for your vision to stabilize completely as your eye finishes healing.
We typically wait four to six weeks after surgery before prescribing new glasses if you need them. At that point, your eye has healed enough that your prescription will be stable and accurate. If you receive a multifocal or light adjustable lens, additional time for neuroadaptation or postoperative adjustments may be needed.
Once a cataract is removed, it cannot grow back because your natural lens has been replaced with an artificial one. However, some patients develop posterior capsule opacification, a clouding of the capsule that holds the IOL. This is treated in the clinic with a YAG laser capsulotomy.
Frequently Asked Questions
Most practices schedule the eyes on separate days, but immediate sequential bilateral cataract surgery is an option for selected patients using strict sterile protocols and separate instrument sets. This allows your first eye to heal and lets us confirm you are responding well before treating the second eye, which minimizes risk and provides better outcomes.
Potential benefits include faster recovery of binocular vision and fewer visits, while risks include bilateral complications if strict protocols are not followed.
Yes, you will remain awake during the procedure, but you will receive numbing eye drops and usually a mild sedative medication to help you stay relaxed and comfortable. Most patients report feeling calm and at ease throughout the surgery and remember very little of the actual experience afterward. Some patients receive a periocular block that numbs the eye and eyelids; your surgeon will choose what is safest for you.
Medicare and most private insurance plans cover medically necessary cataract surgery, including the cost of a standard monofocal intraocular lens. If you choose a premium lens option that corrects astigmatism or provides multifocal vision, you may have additional out-of-pocket expenses for the upgraded lens technology. Premium options such as femtosecond laser assistance, toric or multifocal lenses, light adjustable lenses, and intraoperative aberrometry typically involve out-of-pocket costs, and standard deductibles and copays apply.
Cataract surgery is very safe, but like any surgical procedure, it does carry some risks. Potential complications include endophthalmitis, cystoid macular edema, posterior capsule rupture and vitreous loss, corneal edema or decompensation, IOL misalignment or rotation, refractive surprise, negative dysphotopsia, transient or sustained eye pressure elevation, toxic anterior segment syndrome, retinal detachment, suprachoroidal hemorrhage, ptosis, anesthesia or sedation reactions, and the possibility of needing additional procedures. Serious complications are uncommon when the procedure is performed by an experienced surgeon.
Many patients with monofocal lenses still need reading glasses after cataract surgery, since monofocal lenses are typically set for clear distance vision. Mini-monovision can reduce reading-glass dependence by targeting one eye slightly closer. Premium lenses such as multifocal or extended depth of focus lenses may lessen your dependence on glasses at multiple distances, but you may still need glasses for some tasks. We will discuss realistic expectations for your vision based on the lens you choose.
Femtosecond laser technology can assist with certain steps of cataract surgery, such as creating incisions and breaking up the lens. Visual outcomes are similar in most cases when comparing laser-assisted and standard ultrasound techniques. Laser assistance may add cost and is chosen based on surgeon preference and individual patient factors. Both methods are safe and effective.
Getting Help for Cataract Surgery from Pre-Op to Post-Op
If you have been diagnosed with cataracts or are experiencing vision changes, our eye doctor can evaluate your eyes and help you understand your treatment options. We are here to guide you through every step of the cataract surgery process, from your initial consultation through recovery, with care tailored to your needs.