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Cornea refractive changes after clear cornea phacoemulsification with foldable intraocular lens
1Department of Ophthalmology, Veterans General Hospital-Taipei, Taiwan, R.O.C.
Zhonghua Yi Xue Za Zhi = Chinese Medical Journal; Free China Ed
|January 24, 1998
Summary
Temporal clear cornea phacoemulsification for cataract surgery resulted in tolerable with-the-rule astigmatism. This study evaluated topographic changes after small incision cataract surgery in Oriental eyes.
Area of Science:
- Ophthalmology
- Surgical Techniques
Background:
- Clear cornea incision is a modern trend in cataract surgery, offering benefits like small incisions and rapid recovery.
- Oriental eyes with small palpebral fissures may experience corneal curvature changes due to lid compression during surgery.
Purpose of the Study:
- To evaluate postoperative corneal topographic changes after temporal clear cornea phacoemulsification in Oriental patients.
- To assess the impact of small incision cataract surgery on corneal astigmatism.
Main Methods:
- Forty eyes with simple cataracts underwent temporal clear cornea phacoemulsification (2.65 mm incision, enlarged to 3.5 mm for IOL implantation).
- Corneal topography was measured preoperatively and at one and three months post-surgery.
- Palpebral fissure width was measured preoperatively.
Main Results:
- Induced astigmatism was 0.30 +/- 0.35 diopters at one month and 0.50 +/- 0.43 diopters at three months post-surgery.
- All induced astigmatism shifted towards the incision axis and was with-the-rule.
Conclusions:
- Temporal clear cornea phacoemulsification with foldable intraocular lens implantation resulted in tolerable with-the-rule astigmatism (approximately 0.5 diopters).
- The procedure is suitable for Oriental patients, with minimal induced astigmatism.