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Final surgical results with a suction trephine.
Ophthalmic Surgery
|January 1, 1987
Summary
The suction trephine effectively reduced corneal astigmatism in penetrating keratoplasty patients. This surgical tool shows promise for improving outcomes in aphakic and pseudophakic corneal transplants.
Area of Science:
- Ophthalmology
- Surgical Technology
Background:
- Corneal astigmatism is a common complication after penetrating keratoplasty.
- Existing trepanation methods can contribute to postoperative astigmatism.
Purpose of the Study:
- To evaluate the efficacy of the suction trephine in managing postoperative corneal astigmatism.
- To compare outcomes in aphakic and pseudophakic patients undergoing penetrating keratoplasty.
Main Methods:
- A prospective study involving 31 eyes of 31 patients (aphakic and pseudophakic) undergoing penetrating keratoplasty.
- Utilized a suction trephine for corneal incision.
- Measured and analyzed postoperative corneal astigmatism.
Main Results:
- Overall mean postoperative corneal astigmatism was 3.9 +/- 2.8 diopters.
- Pseudophakic cases in nonscarred corneas exhibited a significant reduction in astigmatism (3.59 diopters) compared to historical data.
- The suction trephine demonstrated favorable results in reducing astigmatism.
Conclusions:
- The suction trephine is a valuable tool for minimizing corneal astigmatism in penetrating keratoplasty.
- Continued use of the suction trephine is recommended for aphakic and combined keratoplasty procedures.