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The effect of pterygium surgery on wavefront analysis
Hasan Razmjoo1, Mohammad-Hadi Vaezi1, Alireza Peyman1
1Department of Ophthalmology, Isfahan University of Medical Sciences, Isfahan, Iran.
Advanced Biomedical Research
|October 23, 2014
Summary
Surgical pterygium excision significantly improves vision and reduces irregular astigmatism. Wavefront analysis confirms enhanced visual acuity and corneal regularity post-surgery.
Area of Science:
- Ophthalmology
- Corneal Surgery
- Visual Optics
Background:
- Pterygium is a common ocular surface disorder.
- It frequently causes irregular astigmatism and vision impairment.
- Surgical excision is believed to improve visual outcomes.
Purpose of the Study:
- To evaluate the impact of pterygium surgery on visual parameters.
- To assess changes in irregular astigmatism using wavefront analysis pre- and post-operatively.
Main Methods:
- 32 patients undergoing pterygium excision were studied.
- Pre- and postoperative data included visual acuity, Orbscan, wavefront analysis, and autorefraction.
Main Results:
- Surgery significantly improved uncorrected and best-corrected visual acuity (P<0.0001).
- Corneal astigmatism, higher-order aberrations, and corneal irregularity showed significant improvement (P<0.0001).
- Vertical coma and secondary astigmatism also improved post-surgery (P=0.003, P=0.004).
Conclusions:
- Pterygium excision enhances visual acuity and refractive error.
- Wavefront analysis and corneal topography indices improve significantly after surgery.
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