Fig 1.
Schematic representation of the 10 measurement points in the Brillouin Optical Scanning System (BOSS) with corneal limbus overlay.
BM1 (nasal-central: x = 2.4 mm, y = 0 mm); BM2 (nasal-superior: x = 1.6 mm, y = 1.6 mm); BM3 (superior-central: x = 0 mm, y = 2.4 mm); BM4 (temporal-superior: x = −1.6 mm, y = 1.6 mm); BM5 (temporal-central: x = −2.4 mm, y = 0 mm); BM6 (temporal-inferior: x = −1.6 mm, y = −1.6 mm); BM7 (inferior-central: x = 0 mm, y = −2.4 mm); BM8 (nasal-inferior: x = 1.6 mm, y = −1.6 mm); BM9 (central-superior: x = 0 mm, y = 0.8 mm); BM10 (central-inferior: x = 0 mm, y = −0.8 mm). Axes: X (nasal to temporal), Y (inferior to superior), −2.4 mm to +2.4 mm from apex (0,0); corneal edge (limbus) for anatomical reference.
Table 1.
Demographics and changes in refractive variables pre- and post-PSM.
Table 2.
Comparison of BM values at 10 corneal points between SMILE and SMILECXL groups pre- and postoperatively.
Table 3.
Comparison of BM changes (ΔBM) at 10 corneal points between SMILE and SMILECXL groups pre- and postoperatively.
Table 4.
Pattern-based categorization of ΔBM changes over 3 months: Regional biomechanical responses in SMILE and SMILECXL.
Fig 2.
Spatial mapping of biomechanical response categories at 10 corneal points over 3 months post-SMILE and SMILECXL.
Resistant but potentially vulnerable (gray: near-zero initial loss post-SMILE but progressive worsening [greater BM loss at 3M than 1M]; diagonal hatching for BM7/BM10); Spontaneously and fully recovered (white: initial loss post-SMILE with spontaneous recovery [ΔBM ≥ 0 at 3M] without CXL); Moderately effective for CXL (yellow: partial loss post-SMILE with non-significant CXL preservation [p ≥ 0.05]); Highly effective for CXL (orange: pronounced loss post-SMILE but significant preservation with CXL [p < 0.05]). Axes: X (nasal to temporal), Y (inferior to superior), −2.4 mm to +2.4 mm from apex (0,0). BM1–BM10 labels match Fig 1.