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Simultaneous versus sequential penetrating keratoplasty and cataract surgery
Ken Hayashi1, Hideyuki Hayashi
1Hayashi Eye Hospital, Fukuoka, Japan. hayashi-ken@hayashi.or.jp
Cornea
|November 30, 2006
Summary
Sequential surgery for penetrating keratoplasty and cataract removal offers better refractive outcomes than simultaneous surgery. While astigmatism and cell loss were similar, sequential procedures achieved greater refractive accuracy.
Area of Science:
- Ophthalmology
- Corneal Surgery
- Cataract Surgery
Background:
- Penetrating keratoplasty (corneal transplant) and cataract surgery are common procedures.
- Simultaneous or sequential surgical approaches exist for combined procedures.
Purpose of the Study:
- To compare surgical outcomes of simultaneous penetrating keratoplasty and cataract surgery versus sequential surgery.
- Evaluate refractive error, corneal astigmatism, and endothelial cell loss.
Main Methods:
- Retrospective analysis of 39 eyes undergoing simultaneous surgery and 23 eyes undergoing sequential surgery.
- Fourier analysis used to determine regular and irregular corneal astigmatism.
- Outcomes assessed at 1 week and 3, 6, and 12 months post-operatively.
Main Results:
- Greater mean refractive error observed in the simultaneous group at 3+ months post-surgery.
- Higher percentage of eyes (70% vs 39%) achieved target refraction within 2D in the sequential group at 12 months (P=0.0344).
- No significant differences in corneal astigmatism or endothelial cell loss between the groups.
Conclusions:
- Sequential surgery demonstrated superior refractive accuracy compared to simultaneous surgery.
- Corneal astigmatism and endothelial cell loss were comparable between both surgical approaches.
- Sequential surgery is indicated for better refractive outcomes in combined procedures.
