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What Is a Three-Piece Monofocal Lens and Why Is It Used After PCR?

1 min read

When posterior capsule rupture occurs, the capsular bag may no longer provide stable in-the-bag support for a one-piece premium intraocular lens (IOL) ¹. In this situation, surgeons often implant a three-piece monofocal IOL.

Three-piece lenses consist of:

  • A central optic (usually acrylic)
  • Two thin haptics (often PMMA or polyimide)

Unlike one-piece acrylic lenses designed specifically for capsular bag placement, three-piece lenses are suitable for placement in the ciliary sulcus when capsule support is incomplete ¹.

They are mechanically stable and versatile in complex situations.

There are currently no widely used three-piece multifocal or toric lenses suitable for sulcus placement ². Therefore, when PCR occurs, the priority is to implant a stable monofocal lens and preserve ocular integrity.

Visual outcomes with three-piece monofocal lenses are excellent when centration is adequate ³.

Later refractive enhancement (for example supplementary sulcus lenses or laser correction) can address residual refractive needs if required.

Structural safety precedes refractive ambition.

References

  1. Oshika T, Sugita G, Miyata K, et al. Influence of intraocular lens design on stability and complications. J Cataract Refract Surg. 1998;24(10):1386-1392.
  2. Chang DF, Braga-Mele R, Henderson BA, Mamalis N, Vasavada A. Management of posterior capsule rupture. J Cataract Refract Surg. 2014;40(8):1360-1372.
  3. Royal College of Ophthalmologists. Cataract surgery guidelines. London: RCOphth; 2021.

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About Blue Fin Vision®

Blue Fin Vision® is a GMC-registered, consultant-led ophthalmology clinic with CQC-regulated facilities across London, Hertfordshire, and Essex. Patient outcomes are independently audited by the National Ophthalmology Database, confirming exceptionally low complication rates.