case_images: PMC11742568_01
case_images: Progression of Axial Curvature Maps and corresponding ablation profiles in a case of post-LASIK ectasia. (A) Map at initial presentation showing anterior steepening consistent with corneal ectasia (B) Ablation profile map from initial PRK + CXL planned with Phorcides Analytic Engine (C) Pentacam Axial Curvature Map 7 months after initial PRK + CXL planned with Phorcides Analytic Engine (D) Ablation profile map from topography-guided PRK enhancement planned with LYRA/San Diego protocol. (E) (Pentacam Axial Curvature Map 7 months after topography-guided PRK enhancement planned with LYRA/San Diego protocol.
case_images: IMCRJ-18-91-g0001.jpg
case_images: PMC11742568_01_IMCRJ-18-91-g0001.jpg
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case_images: Meanwhile, the left eye demonstrated inferior steepening and thinning with an anterior central astigmatism of 0.4 D at 040, Km of 43.3 D, Kmax of 49.2 D, and a central corneal thickness (CCT) of 529 mum OS (Figure 1A). The max ablation depth was measured to be 35.4 mum (Figure 1B). Scheimpflug tomography showed resolution of inferior steepening within the optical zone and development of 2.0 D of central bowtie astigmatism at 004, with a Km of 41.8 D, Kmax of 51.0 D, and CCT of 481 mum (Figure 1C). The max ablation depth was measured to be 25.1 mum (Figure 1D). Scheimpflug tomography demonstrated a spherical optical zone with a residual anterior astigmatism of 0.5 D at 061, a Km of 41.9 D, a Kmax of 51.6 D, and a CCT of 464 mum (Figure 1E).