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Risk Factors in Post-LASIK Corneal Ectasia
Mehmet Gurkan Tatar1, Feride Aylin Kantarci1, Aydin Yildirim2
1Department of Ophthalmology, Medicine Faculty, Fatih University, Eski Londra Asfaltı, Hürriyet Mah. Dumlupınar Sokak No. 10, Şirinevler-Bahçelievler, 34192 İstanbul, Turkey.
Journal of Ophthalmology
|July 9, 2014
Summary
Deep ablation is the most common risk factor for post-laser in situ keratomileusis (LASIK) ectasia. While many patients have identifiable risk factors, understanding these can help prevent post-LASIK ectasia.
Area of Science:
- Ophthalmology
- Corneal Surgery
- Refractive Surgery
Background:
- Post-laser in situ keratomileusis (LASIK) ectasia is a sight-threatening complication.
- Identifying risk factors is crucial for preventing this condition.
Purpose of the Study:
- To evaluate the risk factors associated with the development of post-LASIK ectasia.
- To identify common predisposing factors in patients who developed ectasia after LASIK surgery.
Main Methods:
- Retrospective review of medical records for 42 eyes of 28 patients diagnosed with post-LASIK ectasia.
- Evaluation of topographical features and surgical parameters of affected eyes.
Main Results:
- Deep ablation (>75 μm) was the most frequent risk factor, identified in 10 eyes.
- Other identified risk factors included forme fruste keratoconus (FFK), steep cornea (>47D), pellucid marginal degeneration (PMD), and thin cornea (<500 μm).
- A significant portion of patients (21.4%) had no identifiable risk factor.
Conclusions:
- Most cases of post-LASIK ectasia are associated with identifiable risk factors.
- Deep ablation emerged as the primary risk factor in this patient cohort.
- Further research may be needed to understand cases without apparent risk factors.
