Cataract Surgery

Cataract surgery is a procedure to remove the eye's natural lens when it has become cloudy (cataract) and replace it with a clear artificial lens called an intraocular lens (IOL). It's one of the most frequently performed surgeries worldwide and has an excellent success rate.

When Is Cataract Surgery Recommended?

Surgery is typically recommended when:

• Cataracts significantly impair your vision
• Glasses no longer adequately improve your vision
• Vision problems interfere with daily activities (driving, reading, hobbies)
• Cataracts prevent treatment of other eye conditions

There's no "right" time—surgery is appropriate when cataracts affect your quality of life.

Before Surgery

Preoperative Evaluation

Eye measurements:

• Biometry (eye length and lens power calculations)
• Corneal topography (cornea shape)
• Pupil size assessment
• Retina and optic nerve examination

Health review:

• Medical history
• Current medications
• Allergies

Choosing Your Lens (IOL)

Monofocal IOL (Standard):

• Corrects vision at one distance (usually far)
• Most common choice
• Reading glasses typically still needed
• Covered by most insurance

Multifocal/Extended Depth of Focus IOL:

• Vision at multiple distances
• May reduce need for glasses
• Premium option (additional cost)
• Not suitable for everyone

Toric IOL:

• Corrects astigmatism
• Premium option
• Good for patients with significant astigmatism

Light Adjustable Lens:

• Can be adjusted after surgery
• UV light treatments to fine-tune
• Premium option

The Week Before Surgery

• Get instructions about medications
• Arrange transportation (you cannot drive home)
• Obtain prescribed eye drops
• Fill prescriptions for post-op drops
• Plan for reduced activities for a few days

Day of Surgery

• Nothing to eat or drink after midnight (usually)
• Take approved medications with small sip of water
• Wear comfortable clothing
• No eye makeup
• Arrive at scheduled time
• Bring driver and insurance information

The Procedure

Anesthesia

• Eye drops numb the eye
• Sedative may be given (relaxation)
• You're awake but comfortable
• General anesthesia rarely needed

Surgical Steps

1. Small incision (2-3 mm) in the cornea
2. Opening in lens capsule (capsulotomy)
3. Phacoemulsification (ultrasound breaks up cloudy lens)
4. Lens material removed by suction
5. Artificial lens implanted (folds to fit through small incision)
6. Incision self-seals (usually no stitches)

Duration

• 15-30 minutes for the procedure
• Total facility time: 2-3 hours (preparation and recovery)

Laser-Assisted Cataract Surgery

• Femtosecond laser performs some steps
• Potentially more precise incisions
• Premium option
• Outcomes similar to standard technique for most patients

After Surgery

Immediately After

• Rest in recovery briefly
• Eye shield placed for protection
• Vision may be blurry initially
• Arrange to be driven home
• Rest at home

First Day

• Some blurry vision is normal
• Mild discomfort or scratchiness
• Eye may be red
• Tearing common
• Use eye drops as prescribed
• Wear shield while sleeping

First Week

Do:

• Use prescribed eye drops
• Wear eye shield at night
• Take it easy
• Shower carefully (keep water out of eye)
• Wear sunglasses outdoors

Don't:

• Rub or press on your eye
• Swim or use hot tubs
• Wear eye makeup
• Do strenuous exercise
• Bend with head below waist
• Lift heavy objects (>10-15 lbs)

Vision Recovery

• Many notice improvement within days
• Vision continues improving over weeks
• Some fluctuation is normal
• Final glasses prescription after 4-6 weeks

Follow-Up Appointments

• Day after surgery
• 1 week after
• 1 month after
• Additional visits as needed

Risks and Complications

Common (Usually Minor)

• Mild inflammation
• Temporary increased eye pressure
• Light sensitivity
• Floaters

Uncommon

• Infection (endophthalmitis)—very rare but serious
• Bleeding
• Swelling (cystoid macular edema)
• Retinal detachment
• Lens dislocation
• Persistent inflammation

Posterior Capsule Opacification (PCO)

• "Secondary cataract"
• Membrane behind IOL becomes cloudy
• Occurs in 10-30% of patients over years
• Easily treated with YAG laser (quick outpatient procedure)

Results

Success Rate

• 95%+ of patients have improved vision
• Most achieve 20/40 or better (legal driving vision)
• Outcomes depend on eye health (macular degeneration, glaucoma, etc. may limit improvement)

What to Expect

• Clearer, brighter vision
• Improved color perception
• Reduced glare (for most)
• May still need glasses (depending on IOL choice)
• Permanent improvement (cataracts don't return)

Second Eye Surgery

• Usually done 1-4 weeks after first eye
• Allows first eye to heal
• Some people choose to delay longer
• Discuss timing with your surgeon

Cost and Insurance

Insurance Coverage

• Medicare and most insurance cover standard cataract surgery
• Covers standard monofocal IOL
• Covers necessary facility and anesthesia costs

Premium Options (Additional Cost)

• Premium IOLs (multifocal, toric, accommodating)
• Laser-assisted surgery
• Astigmatism correction with toric lenses
• Out-of-pocket costs vary

Frequently Asked Questions

Does cataract surgery hurt?

The procedure itself is painless due to numbing drops. You may feel some pressure but no pain. Afterward, mild discomfort or scratchiness is common but manageable with over-the-counter pain relievers if needed.

How long does recovery take?

Most people return to normal activities within a few days to a week. Full healing takes 4-6 weeks. Vision often improves within the first few days, though it continues to stabilize over weeks.

Will I need glasses after surgery?

It depends on the IOL chosen and your goals. With standard (monofocal) IOLs set for distance, most people need reading glasses. Premium IOLs may reduce or eliminate glasses dependence, though results vary.

Can cataracts come back?

The cataract itself cannot return because the natural lens is removed. However, the membrane holding the IOL can become cloudy (posterior capsule opacification), which is easily treated with a quick laser procedure.

What if I move during surgery?

The surgeon accounts for minor movements. If you cough or move unexpectedly, the surgeon pauses. Your job is simply to relax and look at the microscope light.

Can both eyes be done at once?

Typically, one eye is done at a time, with the second eye 1-4 weeks later. This allows the first eye to heal and ensures good vision in at least one eye during recovery. Bilateral same-day surgery is done in some circumstances.

When can I drive?

You can typically drive when your vision meets legal requirements (usually 20/40) and you feel comfortable. This may be as soon as a few days after surgery, but ask your surgeon at your follow-up visit.

References