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Specialty Detail Ophthalmology & Eye Surgery

Phaco with Foldable IOL, PMMA IOL & ReSTOR

Medically reviewed: June 15, 2026 [Medical review in progress] Updated: July 6, 2026

This page provides general information about phaco with foldable iol, pmma iol & restor — what it involves, who it may help, how it is performed, and what to consider when planning treatment abroad. This information is for educational purposes only. Final medical advice must come from a qualified healthcare professional who has evaluated your individual case.

Quality & Safety Notice
This information is reviewed for accuracy. However, it is not a substitute for professional medical advice, diagnosis, or treatment. Always consult a licensed healthcare provider before making medical decisions. Outcomes vary by individual — we do not guarantee specific results.

Overview

This procedure is phacoemulsification cataract surgery combined with a choice of intraocular lens (IOL) implant — including foldable lenses, lenses with a UV-block filter, rigid PMMA lenses, and ReSTOR multifocal lenses. Phacoemulsification uses ultrasound to break up and remove a cloudy natural lens (cataract), and an artificial IOL is implanted to restore focusing.

The many lens options exist because patients have different needs and budgets. A foldable IOL goes through a tiny incision for faster healing; a PMMA IOL is a durable, lower-cost rigid lens needing a slightly larger wound; a UV-block filter helps shield the retina; and a ReSTOR multifocal aims to reduce dependence on glasses at multiple distances. Choosing the right lens is central to the result.

Cataract surgery is highly successful, but it is still surgery and the outcome depends on the eye’s health and the lens chosen. This page is an educational overview only — it is not medical advice, and no outcome can be guaranteed.

Who May Need This

This surgery is for people with a cataract that is affecting vision — causing blur, glare, faded colours, difficulty driving at night, or trouble reading — that glasses can no longer adequately correct. The lens choice then depends on the person’s visual goals, eye health, and budget.

Someone who mainly wants clear distance vision and does not mind reading glasses may suit a monofocal or PMMA lens, while someone keen to reduce glasses use might consider a foldable multifocal such as ReSTOR, if their eyes are suitable. An eye surgeon assesses the cataract and the whole eye to advise on both surgery and lens selection.

Surgery is recommended when the cataract causes symptoms that limit the activities you value, or when it needs removing to allow treatment or examination of another eye condition. There is often no harm in waiting until you feel ready, unless the cataract is very dense or raising eye pressure.

The lens type is recommended based on your priorities and eye characteristics — for example a toric option if you have astigmatism, or a monofocal/PMMA lens if a premium lens is unsuitable or not desired. The decision follows individual evaluation and a discussion of realistic expectations.

Diagnosis and Evaluation

Evaluation includes grading the cataract at the slit lamp, a refraction, and biometry — precise measurement of the eye — to calculate the correct lens power. Corneal astigmatism, pupil size, and the health of the retina and macula are assessed, because these affect which lens types are suitable, particularly multifocals.

The surgeon discusses your lifestyle and visual goals to guide lens selection, and reviews your general health and medications. Because premium lenses like ReSTOR are not right for every eye, careful screening is important, and a second opinion may help with complex lens decisions.

Treatment Options

The surgical technique is phacoemulsification; the main decision is the IOL. A foldable monofocal lens gives clear single-distance vision through a tiny incision; a toric version also corrects astigmatism; a PMMA rigid lens is a durable, economical option through a larger incision; and a ReSTOR multifocal aims to reduce glasses dependence but can cause glare or halos.

Most modern IOLs include a UV-block filter, and some add blue-light filtering. For very dense cataracts, a manual small-incision technique with a PMMA lens is an alternative to phaco in some settings. The surgeon matches the lens and technique to your eye and goals.

How It Is Performed

Surgery is an outpatient procedure under local anaesthesia with the pupil dilated. The surgeon makes a small incision at the edge of the cornea, opens the front of the lens capsule, and uses the phaco probe’s ultrasound to break up the cloudy lens, which is aspirated, leaving the capsule to hold the implant.

A foldable IOL is then inserted folded through the tiny incision and unfolds into position, usually needing no stitches; a PMMA IOL requires the incision to be slightly enlarged and often a stitch because it does not fold. The lens stays permanently. Surgery on one eye typically takes about 15–30 minutes, and the second eye is usually treated on a separate day.

Preparation

Preparation includes attending biometry, choosing your lens type after discussing the options, following instructions on drops and fasting, and arranging for someone to take you home. Tell your surgeon about medications, including those for an enlarged prostate, which can affect the iris during surgery.

If you are travelling abroad, allow time for measurements and lens selection, bring your eye and general medical records, and plan for the follow-up visits your surgeon recommends, especially if both eyes are being treated on separate days.

Benefits and Expected Goals

The goal is to remove the cataract and restore clear vision, with the chosen lens tailored to your needs — a monofocal or PMMA lens for reliable single-distance vision, or a multifocal such as ReSTOR to reduce dependence on glasses at more than one distance. Many appropriately selected patients gain a marked improvement in vision.

Benefits depend on the health of the rest of the eye and the lens chosen. Multifocal lenses involve trade-offs such as glare, monofocal and PMMA lenses usually still need reading glasses, and conditions like macular disease can limit the result. Your surgeon can set realistic goals for your eyes and lifestyle.

Risks and Possible Complications

Cataract surgery is very safe, but risks apply whichever lens is used.

  • Clouding of the membrane behind the lens (posterior capsule opacification), easily cleared with a YAG laser
  • Infection inside the eye (endophthalmitis) — rare but serious
  • Swelling of the central retina (cystoid macular oedema) or corneal swelling
  • Raised eye pressure or inflammation
  • Glare and halos, more likely with multifocal lenses such as ReSTOR
  • Residual refractive error needing glasses or, occasionally, a lens exchange
  • Slower healing or more astigmatism with a larger PMMA incision; rarely, retinal detachment

Your surgeon will explain the risks relevant to your eye and lens choice and how any complication would be managed. Report increasing pain, redness, discharge, or vision loss promptly.

Recovery, Follow-up & Aftercare

Recovery is usually quick, though a PMMA lens’s larger, stitched incision may heal a little more slowly than a foldable one. The eye may feel gritty and look red for a few days, and vision clears over days; with a multifocal lens the brain also needs time to adapt to the new focus. You will use antibiotic and anti-inflammatory drops for several weeks.

Avoid rubbing the eye, heavy lifting, swimming, and dusty environments as advised, and wear a protective shield at night for a short period. A new glasses prescription, if needed, is usually given a few weeks later. Attend follow-up visits, and arrange this care locally before returning home.

Medical Tourism Planning

If you are considering cataract surgery abroad, choose a JCI- or ISO-accredited eye hospital with an experienced surgeon and modern phaco and biometry equipment. Ask which lens options — foldable, toric, PMMA, and multifocal such as ReSTOR — are available and their costs, and how lens power is calculated.

Plan for measurements, surgery, and follow-up, and decide with your surgeon whether both eyes will be treated on one trip. Request a written treatment plan and cost estimate that specifies the exact lens before travelling, arrange follow-up at home, and consider medical travel insurance.

Estimated Cost Factors

The cost depends heavily on the lens chosen: a rigid PMMA lens is generally the most economical, a standard foldable monofocal costs more, and premium toric or ReSTOR multifocal lenses cost considerably more. The country and hospital, the surgeon’s fees, whether one or both eyes are treated, and follow-up and medications also affect the total.

Many destinations offer cataract surgery at a fraction of typical US prices, but figures vary widely and online prices are only estimates. Always request a personalized written quote that names the specific lens and states what is included before deciding.

Choosing a Hospital or Specialist

Look for an accredited eye hospital with a high-volume cataract service and a qualified ophthalmologist experienced in phacoemulsification and in the specific lens you are considering, particularly if you want a multifocal such as ReSTOR. Ask about their outcomes and how they screen for multifocal suitability.

Confirm which IOLs they offer and why, how they calculate lens power, and what international patient services and follow-up are provided. Transparent written pricing and an honest discussion of lens trade-offs are signs of a quality programme.

Alternatives

In early cataract, a stronger glasses prescription and better lighting can delay surgery. When surgery is needed, the alternatives are really the lens choices themselves — foldable monofocal, toric, PMMA, or multifocal — and, for very dense cataracts, the manual small-incision technique instead of phaco. There is no medicine that dissolves a cataract.

Each lens and technique has different benefits, costs, and trade-offs. Discuss them honestly with your surgeon so the choice fits your visual goals, eye health, and budget rather than marketing alone.

Questions to Ask Your Doctor

  • Which lens do you recommend for my eyes and lifestyle — foldable, PMMA, or a multifocal like ReSTOR?
  • Am I a good candidate for a multifocal lens, or would it cause glare in my case?
  • How much freedom from glasses can I realistically expect?
  • Does the lens include a UV or blue-light filter?
  • What are the specific risks in my case, and how would a complication be handled?
  • How long should I stay in-country, and when can I safely fly home?
  • What is included in the written cost estimate, including the exact lens type?

Safety Checklist Before Traveling

Use this checklist to help ensure your safety when planning medical treatment abroad.

  • Verify hospital accreditation (JCI, ISO, TEMOS)
  • Verify specialist credentials and board certification
  • Get a written treatment plan from your doctor
  • Get a written cost estimate with included/excluded items
  • Arrange follow-up care with your local doctor
  • Confirm medical visa and travel documents
  • Consider medical travel insurance
  • Keep copies of all medical records and reports
  • Share your travel plans with a family member or companion
  • Know the emergency contact numbers at your destination

🚨 When to Seek Urgent Medical Help

Contact a healthcare provider immediately if you experience any of the following:

  • Severe chest pain or difficulty breathing
  • Heavy or uncontrolled bleeding
  • Sudden weakness, confusion, or loss of consciousness
  • Severe allergic reaction (swelling, rash, difficulty breathing)
  • High fever (above 101°F / 38.3°C) after a procedure
  • Worsening pain, redness, or swelling at a surgical site
  • Any symptom that feels severe, unexpected, or concerning to you

After cataract surgery with a lens implant, seek urgent eye care for increasing eye pain, sudden vision loss, a marked increase in redness or discharge, new flashing lights, a shower of floaters, or a curtain or shadow across your vision — these can signal infection, raised pressure, or retinal problems that need prompt treatment.

🚨 If you have a life-threatening emergency, call local emergency services immediately. Do not wait.

Frequently Asked Questions

They are different intraocular lens (IOL) options used during phacoemulsification cataract surgery. A foldable IOL is made of soft material that folds to go through a tiny incision. A UV-block filter is a coating that shields the retina from ultraviolet (and sometimes blue) light. A PMMA IOL is a rigid lens that needs a slightly larger incision. ReSTOR is a brand of multifocal IOL designed to give vision at more than one distance.

A foldable IOL is inserted folded through a very small self-sealing incision, which usually means faster healing and less astigmatism — it is the modern standard. A PMMA (rigid) lens cannot fold, so it needs a larger, stitched incision. PMMA lenses are durable and lower-cost and are still used in some settings, but recovery from the larger wound is generally slower.

A multifocal lens such as ReSTOR aims to reduce dependence on glasses for both distance and near vision, which suits people who strongly want spectacle freedom. However, multifocal lenses can cause glare and halos, especially at night, and are not ideal for every eye — for example those with other retinal or corneal disease. Your surgeon will assess whether it is a good match.

Most modern IOLs incorporate a UV filter to replace the natural lens’s UV-blocking role, helping protect the retina from ultraviolet light. Some lenses also filter blue light. The protective benefit is generally considered helpful, though wearing UV-protective sunglasses outdoors remains sensible. Your surgeon can explain the filter in the lens you are offered.

The choice balances your visual goals (such as freedom from glasses), your eye’s health and measurements, and cost. Monofocal and PMMA lenses give excellent single-distance vision, often with reading glasses; premium foldable, toric, and multifocal lenses offer more but cost more and have trade-offs. Discuss the options honestly with your surgeon, and request a personalized written quote.

References

This section lists sources supporting the information on this page. Content is periodically reviewed for accuracy.

  • American Academy of Ophthalmology — Intraocular Lens Implants
  • NIH National Eye Institute — Cataracts
  • U.S. Food and Drug Administration — Intraocular Lenses
  • Royal College of Ophthalmologists — Cataract Surgery Guidelines
Medical Disclaimer
SurgeryPlanet is a healthcare facilitator and information platform, not a medical service provider. The content on this page is for general educational purposes only and does not replace advice from a qualified healthcare professional. No surgical or treatment outcome is guaranteed. Always consult a licensed, qualified healthcare provider with any questions regarding a medical condition or procedure.
Cost Disclaimer
Prices shown are estimates based on available data. Final costs depend on your specific diagnosis, procedure complexity, hospital choice, length of stay, and other factors. Always request a personalized written estimate before making treatment decisions.

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