OP-LENS
The world's most proven IOL material — engineered for surgeons who value crisp optics, capsular-bag stability, and six decades of unmatched clinical trust. Sometimes, the original is still the best.
Why the world still trusts PMMA.
PMMA (polymethyl methacrylate) was the first material ever implanted inside a human eye — and it remains the most widely implanted IOL material globally by cumulative volume. Here's why it endures.
Zero water absorption
Unlike hydrophilic acrylic which absorbs 18–38% water, PMMA absorbs essentially none. This means zero osmotic swelling, zero calcification risk, and stable optics from day one through decade ten.
Superior optical clarity
PMMA's refractive index of 1.42 and glass-like transparency deliver crisp, high-contrast vision. Studies note PMMA consistently produces excellent visual acuity outcomes comparable to modern foldable lenses.
Dimensional stability
PMMA doesn't swell, warp, or change shape inside the eye. The lens you implant is the lens the patient lives with — no surprises. Its rigidity means predictable vault height and centration.
Biocompatibility proven over 60+ years
Sir Harold Ridley implanted the first PMMA IOL in 1949. Since then, hundreds of millions of PMMA lenses have been implanted worldwide. No other IOL material has a longer in-vivo safety track record.
Lower PCO rates than hydrophilic
Multiple studies report lower posterior capsule opacification (PCO) rates with rigid PMMA IOLs compared to hydrophilic acrylic IOLs. Apple et al. (2001) and Nishi et al. documented PMMA's favorable PCO profile.
Cost-effective for high-volume programs
PMMA IOLs enable the highest-quality cataract surgery at the most accessible price point — critical for mass cataract blindness elimination programs worldwide.
Clinical evidence supporting PMMA
Published peer-reviewed literature consistently demonstrates that PMMA IOLs deliver excellent long-term outcomes:
Apple DJ et al. (2001) — Documented that PMMA IOLs show minimal long-term opacification and maintain optical clarity over decades. Survey of Ophthalmology.
Nishi O et al. (2004) — Compared PCO rates across materials; PMMA showed favorable capsule interaction compared to hydrophilic acrylic. J Cataract Refract Surg.
Schmidbauer et al. (2001) — Review of explanted IOLs showed PMMA lenses maintained structural integrity better than many newer materials. J Cataract Refract Surg.
WHO IAPB Vision Atlas (2020) — PMMA remains the recommended IOL material for high-volume cataract surgical programs in developing nations due to cost-effectiveness and proven outcomes.
A deep dive into when PMMA outperforms modern foldable lenses and why it remains clinically relevant.
The material that changed ophthalmology.
PMMA's history is as remarkable as its optics. Here are facts that most people in the industry don't know.
The Spitfire origin story
Sir Harold Ridley noticed that WWII Spitfire pilots who got PMMA canopy shards embedded in their eyes showed no inflammatory reaction — the body tolerated the plastic. This observation led to the invention of the intraocular lens. Every IOL implanted today traces its lineage to that battlefield observation.
PMMA in everyday life
PMMA isn't just in eyes — it's the material behind Plexiglass, aquarium panels, aircraft windows, dental prosthetics, and bone cement. Its optical clarity is why it's sometimes called "organic glass." The Louvre's protective barrier in front of the Mona Lisa? That's PMMA.
What if PMMA could fold?
Imagine a material with PMMA's zero water absorption, 1.42 refractive index, dimensional stability, and 75-year biocompatibility track record — but foldable enough to pass through a 2.2mm incision.
It would combine the best of both worlds: the predictability that made PMMA the gold standard for half a century, with the micro-incision workflow that modern surgeons prefer. Zero calcification risk. Zero osmotic instability. Perfect optics. Minimal PCO. And small-incision delivery.
That material doesn't exist yet — but it's the benchmark against which every new IOL polymer should be measured. Until then, for markets and programs where incision size is secondary to optical quality and long-term stability, PMMA remains unmatched.
OP-LENS specifications
| Product | OP-LENS — PMMA IOL |
| Material | PMMA (Polymethyl methacrylate) |
| Refractive index | 1.42 |
| Diopter range | +5.0D to +30.0D |
| Optic diameter | 5.5 mm / 6.0 mm |
| Overall diameter | 12.5 mm |
| Placement | Posterior chamber, capsular bag |
| Options | Clear & Yellow (blue-light filtering) |
| Sterilization | EO sterilized |
| Packaging | Individual sterile blister pack |
PMMA material advantages
PMMA vs modern IOL materials.
An honest comparison. We manufacture all three — PMMA, hydrophilic, and hydrophobic — and recommend based on your market needs.
| Parameter | PMMA (OP-LENS) | Hydrophilic Acrylic | Hydrophobic Acrylic |
|---|---|---|---|
| Incision size | 5.5–6.0 mm (SICS/ECCE) | 2.2–2.8 mm | 2.2–2.8 mm |
| Water absorption | 0% | 18–38% | ~0.5% |
| Calcification risk | None | Documented cases | Very low |
| PCO rate | Low | Moderate–High | Low |
| Glistenings | None | None | Possible |
| In-vivo track record | 75+ years | ~25 years | ~25 years |
| Cost per unit | Lowest | Moderate | Highest |
| Best for | SICS/ECCE, mass programs, cost-sensitive markets | Phaco, general cataract | Phaco, premium cataract |
| Agaaz product | OP-LENS | OP-FOLD AS, i-Nera | OP-VIEW AS |
Common questions.
Add OP-LENS to your catalog.
Share your country, preferred option (clear or yellow), diopter mix, and estimated volumes. We'll respond within 24 hours.
OP-LENS
The world's most proven IOL material — engineered for surgeons who value crisp optics, capsular-bag stability, and six decades of unmatched clinical trust. Sometimes, the original is still the best.
Why the world still trusts PMMA.
PMMA (polymethyl methacrylate) was the first material ever implanted inside a human eye — and it remains the most widely implanted IOL material globally by cumulative volume. Here's why it endures.
Zero water absorption
Unlike hydrophilic acrylic which absorbs 18–38% water, PMMA absorbs essentially none. This means zero osmotic swelling, zero calcification risk, and stable optics from day one through decade ten.
Superior optical clarity
PMMA's refractive index of 1.42 and glass-like transparency deliver crisp, high-contrast vision. Studies note PMMA consistently produces excellent visual acuity outcomes comparable to modern foldable lenses.
Dimensional stability
PMMA doesn't swell, warp, or change shape inside the eye. The lens you implant is the lens the patient lives with — no surprises. Its rigidity means predictable vault height and centration.
Biocompatibility proven over 60+ years
Sir Harold Ridley implanted the first PMMA IOL in 1949. Since then, hundreds of millions of PMMA lenses have been implanted worldwide. No other IOL material has a longer in-vivo safety track record.
Lower PCO rates than hydrophilic
Multiple studies report lower posterior capsule opacification (PCO) rates with rigid PMMA IOLs compared to hydrophilic acrylic IOLs. Apple et al. (2001) and Nishi et al. documented PMMA's favorable PCO profile.
Cost-effective for high-volume programs
PMMA IOLs enable the highest-quality cataract surgery at the most accessible price point — critical for mass cataract blindness elimination programs worldwide.
Clinical evidence supporting PMMA
Published peer-reviewed literature consistently demonstrates that PMMA IOLs deliver excellent long-term outcomes:
Apple DJ et al. (2001) — Documented that PMMA IOLs show minimal long-term opacification and maintain optical clarity over decades. Survey of Ophthalmology.
Nishi O et al. (2004) — Compared PCO rates across materials; PMMA showed favorable capsule interaction compared to hydrophilic acrylic. J Cataract Refract Surg.
Schmidbauer et al. (2001) — Review of explanted IOLs showed PMMA lenses maintained structural integrity better than many newer materials. J Cataract Refract Surg.
WHO IAPB Vision Atlas (2020) — PMMA remains the recommended IOL material for high-volume cataract surgical programs in developing nations due to cost-effectiveness and proven outcomes.
A deep dive into when PMMA outperforms modern foldable lenses and why it remains clinically relevant.
The material that changed ophthalmology.
PMMA's history is as remarkable as its optics. Here are facts that most people in the industry don't know.
The Spitfire origin story
Sir Harold Ridley noticed that WWII Spitfire pilots who got PMMA canopy shards embedded in their eyes showed no inflammatory reaction — the body tolerated the plastic. This observation led to the invention of the intraocular lens. Every IOL implanted today traces its lineage to that battlefield observation.
PMMA in everyday life
PMMA isn't just in eyes — it's the material behind Plexiglass, aquarium panels, aircraft windows, dental prosthetics, and bone cement. Its optical clarity is why it's sometimes called "organic glass." The Louvre's protective barrier in front of the Mona Lisa? That's PMMA.
What if PMMA could fold?
Imagine a material with PMMA's zero water absorption, 1.42 refractive index, dimensional stability, and 75-year biocompatibility track record — but foldable enough to pass through a 2.2mm incision.
It would combine the best of both worlds: the predictability that made PMMA the gold standard for half a century, with the micro-incision workflow that modern surgeons prefer. Zero calcification risk. Zero osmotic instability. Perfect optics. Minimal PCO. And small-incision delivery.
That material doesn't exist yet — but it's the benchmark against which every new IOL polymer should be measured. Until then, for markets and programs where incision size is secondary to optical quality and long-term stability, PMMA remains unmatched.
OP-LENS specifications
| Product | OP-LENS — PMMA IOL |
| Material | PMMA (Polymethyl methacrylate) |
| Refractive index | 1.42 |
| Diopter range | +5.0D to +30.0D |
| Optic diameter | 5.5 mm / 6.0 mm |
| Overall diameter | 12.5 mm |
| Placement | Posterior chamber, capsular bag |
| Options | Clear & Yellow (blue-light filtering) |
| Sterilization | EO sterilized |
| Packaging | Individual sterile blister pack |
PMMA material advantages
PMMA vs modern IOL materials.
An honest comparison. We manufacture all three — PMMA, hydrophilic, and hydrophobic — and recommend based on your market needs.
| Parameter | PMMA (OP-LENS) | Hydrophilic Acrylic | Hydrophobic Acrylic |
|---|---|---|---|
| Incision size | 5.5–6.0 mm (SICS/ECCE) | 2.2–2.8 mm | 2.2–2.8 mm |
| Water absorption | 0% | 18–38% | ~0.5% |
| Calcification risk | None | Documented cases | Very low |
| PCO rate | Low | Moderate–High | Low |
| Glistenings | None | None | Possible |
| In-vivo track record | 75+ years | ~25 years | ~25 years |
| Cost per unit | Lowest | Moderate | Highest |
| Best for | SICS/ECCE, mass programs, cost-sensitive markets | Phaco, general cataract | Phaco, premium cataract |
| Agaaz product | OP-LENS | OP-FOLD AS, i-Nera | OP-VIEW AS |
Common questions.
Add OP-LENS to your catalog.
Share your country, preferred option (clear or yellow), diopter mix, and estimated volumes. We'll respond within 24 hours.
