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Corneal incision quality: microincision cataract surgery versus microcoaxial phacoemulsification
Bassam Elkady1, David Piñero, Jorge L Alió
1Departamento de Optica, Vissum-Instituto Oftalmológico de Alicante, Universidad de Alicante, Miguel Hernandez University, Alicante, Spain.
Journal of Cataract and Refractive Surgery
|March 3, 2009
Summary
Microincision cataract surgery (MICS) and microcoaxial phacoemulsification (microphaco) offer comparable corneal incision quality. MICS demonstrated reduced short-term corneal edema and fewer long-term corneal aberrations.
Area of Science:
- Ophthalmology
- Corneal Surgery
- Optical Coherence Tomography
Background:
- Cataract surgery techniques aim to minimize corneal trauma and optimize visual outcomes.
- Evaluating corneal incision quality is crucial for refractive stability after surgery.
Purpose of the Study:
- To compare corneal incision quality between microincision cataract surgery (MICS) and microcoaxial phacoemulsification (microphaco) using corneal optical coherence tomography (OCT).
Main Methods:
- Randomized comparison of MICS versus microphaco in eyes with cataract grade II to IV.
- Corneal OCT analysis of incision parameters (thickness, angle, sealing, coaptation, Descemet detachment) at postoperative day 1, week 1, and month 1.
- Assessment of visual, refractive, topographic, and aberrometric data.
Main Results:
- No significant differences in geometric corneal thickness or incision angle quality between MICS and microphaco.
- MICS showed significantly less corneal edema at 1 day (44% vs. 87%).
- MICS better maintained corneal prolateness and showed trends towards reduced astigmatism and aberrations at 1 month.
Conclusions:
- Both MICS and microphaco yield good, optically neutral corneal incision quality.
- MICS offers advantages in preserving corneal shape, reducing short-term edema, and minimizing long-term corneal aberrations.
