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Interface Haze Formation After Ultra Thin Flap Laser in Situ Keratomileusis
Summary
Thin flap laser in situ keratomileusis (LASIK) for myopia can cause temporary corneal haze and myopic regression. This complication typically resolves within months, improving refractive outcomes post-surgery.
Area of Science:
- Ophthalmology
- Refractive Surgery
- Corneal Surgery
Background:
- Laser in situ keratomileusis (LASIK) is a common procedure for correcting myopia and astigmatism.
- Thin flap creation is utilized in specific LASIK cases to preserve corneal tissue.
Purpose of the Study:
- To report on the incidence and impact of subepithelial corneal haze following LASIK with thin flap creation.
- To assess the refractive outcomes and haze progression in patients undergoing this procedure.
Main Methods:
- A case series of five patients (10 eyes) undergoing LASIK with a 90 µm microkeratome head for moderate myopia and astigmatism.
- Intraoperative flap thickness measurement and postoperative examinations for corneal haze and refractive error.
Main Results:
- All eyes had intraoperative flap thickness less than 70 µm.
- Mild subepithelial corneal haze and myopic regression were observed in all patients at one month post-surgery.
- Significant improvement in haze and refractive error occurred in subsequent postoperative months.
Conclusions:
- Post-LASIK subepithelial corneal haze following thin flap creation is a transient complication.
- This complication can temporarily impact refractive error in the early postoperative period.
- Haze and refractive error typically improve over time, suggesting a favorable long-term outcome.
