PMC8721368_01
Preoperative Orbscan of the right eye showing no significant risk factor for LASIK.
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His preoperative imaging, including corneal topography and Orbscan (Figures 1 and 2), showed symmetric bowtie patterns without skewed axes.
Preoperative Orbscan of the left eye showing no significant risk factor for LASIK.
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His preoperative imaging, including corneal topography and Orbscan (Figures 1 and 2), showed symmetric bowtie patterns without skewed axes.
Postoperative Orbscan of the right eye showing advanced keratectasia.
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Orbscan imaging was compatible with keratoconus with significant anterior and posterior elevation and inferior steepening in both eyes (Figures 3 and 4).
Postoperative Orbscan of the left eye showing advanced keratectasia.
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Orbscan imaging was compatible with keratoconus with significant anterior and posterior elevation and inferior steepening in both eyes (Figures 3 and 4).
(a) Postoperative optical coherence tomography of the right eye showing a thicker than intended flap. (b) Postoperative optical coherence tomography of the left eye showing a thicker than intended flap.
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The thicker than expected flap along with deep ablations resulted in excessive thinning of the residual stromal bed (Figures 5).