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Related Experiment Video

Updated: Apr 15, 2026

Author Spotlight: Enhancing Visual Outcomes in Cataract Surgery: A Novel Technique to Prevent Posterior Capsular Opacification Through IOL Rotation
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Intraocular lens power changes after mitomycin trabeculectomy.

Mohammad Pakravan1, Azam Alvani1, Shahin Yazdani1

  • 1Ophthalmic Epidemiology Research Center, Shahid Beheshti University of Medical Sciences, Tehran - Iran.

European Journal of Ophthalmology
|April 4, 2015
PubMed
Summary
This summary is machine-generated.

Mitomycin C augmented trabeculectomy causes biometric changes, but intraocular lens (IOL) power calculations remain stable. Post-trabeculectomy IOL power adjustment appears unnecessary for accurate refractive outcomes.

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Area of Science:

  • Ophthalmology
  • Biomedical Engineering

Background:

  • Trabeculectomy is a common glaucoma surgery.
  • Mitomycin C is frequently used to augment trabeculectomy.
  • Accurate intraocular lens (IOL) power calculation is crucial for visual outcomes after cataract surgery.

Purpose of the Study:

  • To assess biometric changes following mitomycin C augmented trabeculectomy.
  • To evaluate the impact of these biometric changes on IOL power calculations using standard formulas.

Main Methods:

  • Prospective interventional case series of 34 eyes from 31 glaucoma patients.
  • Noncontact biometry (Lenstar) measured axial length and corneal power pre- and post-surgery (3 and 6 months).
  • IOL power was calculated using Hoffer Q, Holladay, and SRK/T formulas; Bland-Altman plots assessed agreement.

Main Results:

  • Significant decrease in axial length (AL) at 3 and 6 months post-surgery (p<0.001).
  • Significant increase in mean corneal power at 3 months (p<0.001) and 6 months (p=0.008).
  • No significant changes in IOL power calculations across all formulas (p≥0.17).

Conclusions:

  • Trabeculectomy with mitomycin C induces significant biometric shifts (AL and corneal power).
  • Despite these shifts, IOL power calculations remain statistically unchanged.
  • Routine adjustment of IOL power calculations after trabeculectomy is likely unnecessary.