Functional Outcomes and Reading Speeds following PRESBYOND LBV Using Nonlinear Aspheric Ablation Profiles Combined with Micro-Monovision

Table 3

Subgroup analysis for patients aged “less than 55 years” and “55 years and above.”

Parameter (mean ± SD)	Less than 55	55 and above	value
Binocular visual acuity (log MAR)
Distance uncorrected	−0.037 ± 0.06	−0.01 ± 0.07	0.46
Distance corrected	−0.06 ± 0.04	−0.04 ± 0.05	0.39
Near uncorrected	0.22 ± 0.03	0.24 ± 0.05	0.27
Near corrected	0.38 ± 0.10	0.45 ± 0.15	0.16
Reading performance
Reading acuity (log MAR)	Less than 55	55 and above	value
40 cm (pre corrected)	0.03 ± 0.11	0.06 ± 0.14	0.6
(Post uncorrected)	0.02 ± 0.11	0.04 ± 0.11	0.64
60 cm (pre corrected)	0.05 ± 0.15	0.04 ± 0.23	0.86
(Post uncorrected)	0.04 ± 0.06	0.04 ± 0.05	0.76
80 cm (pre corrected)	0.11 ± 0.05	0.12 ± 0.01	0.71
(Post uncorrected)	0.1 ± 0.05	0.10 ± 0.04	0.82
Letter size (log scale)
40 cm (pre corrected)	0.71 ± 0.12	0.72 ± 0.11	0.97
(Post uncorrected)	0.74 ± 0.08	0.73 ± 0.08	0.77
60 cm (pre corrected)	0.11 ± 0.03	0.12 ± 0.03	0.82
(Post uncorrected)	0.97 ± 0.17	0.98 ± 0.14	0.92
80 cm (pre corrected)	0.94 ± 0.16	0.86 ± 0.20	0.28
(Post uncorrected)	0.96 ± 0.29	0.93 ± 0.20	0.96
Reading speed (WPM)
40 cm (pre corrected)	150.45 ± 7.28	150.87 ± 7.82	0.89
(Post uncorrected)	165.09 ± 20.02	161.12 ± 14.85	0.61
60 cm (pre corrected)	162.72 ± 6.51	162.5 ± 6.41	0.93
(Post uncorrected)	173.90 ± 9.99	174.87 ± 8.80	0.81
80 cm (pre corrected)	154.04 ± 7.39	155.25 ± 7.42	0.69
(Post uncorrected)	166.63 ± 17.91	162.87 ± 19.44	0.62
Stereopsis
Pre-op uncorrected	50 ± 17.18	52.5 ± 18.32	0.73
Post-op uncorrected	82.27 ± 36.40	96.25 ± 36.22	0.55
Post-op uncorrected	52.27 ± 16.59	56.25 ± 15.97	0.56