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Related Experiment Video

Updated: Jul 8, 2026

Correction of Presbyopia by Monocular Bi-Aspheric Ablation Profile

Published on: September 20, 2024

Corneal aberrations after microincision cataract surgery.

Bassam Elkady¹, Jorge L Alió, Dolores Ortiz

¹VISSUM, Instituto Oftalmologico de Alicante, Alicante, Spain.

Journal of Cataract and Refractive Surgery

|January 1, 2008

Summary

This summary is machine-generated.

Microincision cataract surgery (MICS) did not significantly alter corneal optical quality or astigmatism. This study found no degradation in Seidel aberrations after MICS, indicating safety for visual function.

Related Experiment Videos

Last Updated: Jul 8, 2026

Correction of Presbyopia by Monocular Bi-Aspheric Ablation Profile

Published on: September 20, 2024

Area of Science:

Ophthalmology
Corneal Optics
Cataract Surgery

Background:

Cataract surgery aims to restore vision by removing the clouded lens.
Microincision cataract surgery (MICS) offers potential benefits like smaller incisions.
Assessing the impact of MICS on corneal optical quality is crucial for patient outcomes.

Purpose of the Study:

To evaluate the effect of Microincision Cataract Surgery (MICS) on corneal optical quality.
To characterize changes in Seidel aberrations post-MICS.
To determine if MICS modifies corneal astigmatism.

Main Methods:

25 eyes with grade 2+ to 4+ nuclear or corticonuclear cataracts underwent MICS.
Surgery utilized a 1.6-1.8 mm clear corneal incision and low ultrasound power.
Seidel aberration root-mean-square (RMS) values were measured preoperatively and 1-3 months postoperatively using a CSO topographer.

Main Results:

Total RMS values showed a non-significant decrease from 2.15 µm to 1.96 µm.
Corneal astigmatism changed from -0.80 D to -0.63 D, a non-significant difference.
No statistically significant changes were observed in Seidel aberrations, coma, or higher-order aberrations.

Conclusions:

Microincision cataract surgery does not degrade corneal optical quality.
MICS does not induce significant modifications in corneal astigmatism or its axis.
The findings suggest MICS is safe regarding corneal optical performance.