Topography-Guided Femto-LASIK in Virgin Eyes: Treating Manifest versus Measured Astigmatism

Figures & data

Table 1 Preoperative Demographic and Refractive Characteristics of the Included Patients

Parameters	Group A	Group B
No. of eyes	330 (165 Patients)	322 (160 Patients)
Age, Y (range)	38.84±8.35 (22 to 48)	39.48±9.36 (21 to 49)
Gender ratio	45.45% F/54.55% M	51.55% F/48.45% M
Attempted SEQ (range)	−4.85 ± 1.90 (−1.38 to −9.0 D)	−5.0 ± 1.93 (−1.38 to −8.75 D)
Attempted cylinder (range)	−0.95 ± 0.80 D (0.00 to −2.75 D)	−0.91 ± 0.81 D (0.00 to −2.75 D)
CDVA	76% ≥20/16; 100% ≥20/20	73% ≥20/16; 100% ≥20/20
Follow-up	12 months	12 months

Abbreviations: SEQ, spherical equivalent refraction; CDVA, corrected distance visual acuity; D, diopters.

Figure 1 Uncorrected distance visual acuity: (A) group A and (B) group B.

Figure 2 Changes in corrected distance visual acuity: (A) group A and (B) group B.

Figure 3 Attempted versus achieved spherical equivalent refraction: (A) group A and (B) group B.

Figure 4 Postoperative spherical equivalent refractive accuracy in dioptres: (A) group A and (B) group B.

Figure 5 Stability of spherical equivalent refraction: (A) group A and (B) group B.

Figure 6 Postoperative refractive cylinder values (D): (A) group A and (B) group B.

Figure 7 Postoperative refractive astigmatism angle of error: (A) group A and (B) group B.