Optical Coherence Pachymetry to Evaluate Central Corneal Ablation Depth in Myopic Femtosecond Laser in Situ Keratomileusis

Optical Coherence Pachymetry (OCP) to Evaluate Central Corneal Ablation Depth in Myopic Femtosecond Laser in Situ Keratomileusis (LASIK)

Prospective study aiming to measure central ablation depth during excimer laser surgery in myopic patients operated with femtosecond laser assisted LASIK with intraoperative OCP, before and after laser ablation. This measurement will be compared with pre and 1 month postoperative topography differential pachymetric measurements.

Inclusion Criteria:

• Patients over 18 years old
• undergoing refractive surgery with LASIK
• with myopic or compound myopic astigmatism ametropia
• without irregular cornea and topographical sign of keratoconus
• preoperative corneal thickness compatible with LASIK

Exclusion Criteria:

• hyperopia
• opposition to participate in the study
• no health insurance coverage
• patient under legal protection
• pregnant or breastfeeding patient