We would like to thank Drs Tekin and Koc for their letter and interest in our study.' Koc and associates point out certain similarities between pellucid marginal degeneration (PMD) and inferior keratoconus. As they stated, PMD is a rare con- dition, and diagnosis of PMD based on topography needs full pachymetry map. We congratulate the authors for their work, and we acknowledge their important insights on the PMD and inferior keratoconus.” However, our study was performed before their publication, and the prevalence of PMD was not the main focus of our study. Also, we conducted this study in a tertiary referral eye clinic.
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