Analysis and Causation of All Inaccurate Outcomes After WaveLight Contoura LASIK with LYRA Protocol

Figures & data

Table 1 Demographics

266 eyes of 137 patients

Average age 33.96 years; range 18–64

70 males and 67 females

Table 2 The Type and Magnitude of Residual Refractive Errors for Each of the 5 Categories

Biomechanical
CYL
−0.25	7.69%	2
−0.5	11.53%	3
−0.75	30.77%	8
−1	19.23%	5
−1.25	26.95%	7
Sphere Only	3.85%	1
Total Eyes		26
Epicompensation
CYL
−0.75	18.18%	2
−1	45.45%	5
−1.25	18.18%	2
−1.5	9.09%	1
Sphere Only	9.09%	1
Total Eyes		11
Epi-thickening
CYL
−0.75	25%	1
−1	25%	1
Sphere Only	50%	2
Lamellar
CYL
−0.5	40%	2
Sphere Only	60%	3

Figure 1 (A) Pre-op topography. (B) Pre-op pachymetry showing corneal thickness. (C) Pre-op OCT pachymetry. (D) Pre-op OCT epithelial thickness mapping (ETM). (E) 5 month post-op topography. (F) 5 month post-op OCT pachymetry. (G) 5 month post-op OCT ETM- note the irregular epithelial thickening at the edge of the epithelial ablation. 

Figure 2 (A) Pre-op pachymetry showing corneal thickness.(B) Pre-op epithelium map. – 9 mm ETM (Avanti XR).

Figure 3 (A) Pre-op topography (Topolyzer Vario) (B and C) Pre-op OCT pachymetry and epithelial thickness map. 9mm ETM (Avanti XR), (D) 1 month post-op topography, (E and F) 1 month post-op OCT pachymetry and epithelial thickness map. 9mm ETM (G) Post-enhancement 1 year.

Figure 4A Continued.

Figure 4 (A) Pre-op topography. (B) Pre-op OCT pachymetry. (C) Pre-op epithelial thickness map. (D) Post-op 1 month topography. (E) Post-op 1 month OCT pachymetry. (F) 1- month post-op epithelial thickness map 9mm ETM (Avanti XR).  The thickened epithelium as opposed to pre-op. (G) Post-enhancement and 1 year post-op. (H, I) OCT Pachymetry map post enhancement and 1 year post-op.

Figure 5 (A) Pre-op topography map (Topolyzer Vario). (B) Pre-op pachymetry showing corneal thickness. (C) Pre-op epithelial thickness map. 9mm ETM (Avanti XR). (D) 3-month post-op topography. (E) 3-month post-op OCT pachymetry (F) 3-month post-op epithelial thickness map (ETM). (G) 4-month post ENH topography. (H) 4-month Post ENH OCT pachymetry. (I) 4-month Post ENH epithelial thickness map (ETM).