Toric Lenses for Astigmatism Correction After Cataract Surgery: Benefits & Considerations
Toric intraocular lenses (IOLs) correct pre-existing corneal astigmatism during cataract surgery, reducing postoperative spectacle dependence.
Benefits
- Improved uncorrected distance visual acuity.
- Reduced need for glasses/contacts for distance.
- Stable, long-term astigmatism correction.
- Minimal surgically induced astigmatism with modern designs.
- High patient satisfaction.
Considerations
- Patient Selection: Best for regular corneal astigmatism ≥0.75 D; irregular corneas (keratoconus) are poor candidates.
- Surgeon Expertise: Precise axis alignment critical; misalignment >10° reduces efficacy.
- Risks: Lens rotation, decentration, inflammation (rare).
- Cost: Premium IOL; often out-of-pocket.
- Expectations: May still need reading glasses (unless multifocal toric); residual astigmatism possible.
Thorough preoperative counseling and corneal topography ensure appropriate candidacy.
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