Abstract
Purpose :
To compare the monocular and binocular corrected defocus curves between 2 non-toric trifocal IOL models in 3 different illuminance conditions.
Methods :
Patients who underwent phacoemulsification by a single surgeon with bilateral implantation of TFNT00 or ATLISA TRI839 IOLs were enrolled in this study. The main outcome was the comparison of the binocular and the monocular corrected defocus curves plotted from the distance-corrected visual acuity (DCVA) between 2 IOLs within 3 different ambient illuminations of 360, 130, and 30 lux. The uncorrected distance visual acuity (UDVA), distance-corrected intermediate (DCIVA), and near visual acuity (DCNVA) were also measured. Mixed-model analysis of variance (ANOVA) and multilevel mixed-effects linear regression were used to determine the difference of DCVA at each defocus step.
Results :
Seventeen patients aged 50 to 77 years with 34 eyes, 9 of whom had bilateral TFNT00 implantation and 8 had bilateral ATLISA TRI839, were enrolled in the study. The average UDVA of TFNT00 and ATLISA TRI839 implanted eyes were 0.003 and 0.029 LogMAR respectively. The monocular corrected defocus curve showed significantly higher visual acuity for TFNT00 at intermediate range (-1.5 D) at 130 and 30 lux, and also (-2.0 D) at 360, 130, and 30 lux (all p < 0.05). At near range (-3.0 D), the monocular corrected defocus curve showed significantly higher visual acuity for ATLISA TRI839 at 130 and 30 lux (all p < 0.05). There was no significant difference of monocular corrected defocus curve at distant range (+1.0 D to -1.0 D) and at near-intermediate range (-2.5 D) between 2 IOLs. Binocular corrected defocus curves showed no significant difference between 2 IOLs in all illuminance conditions.
Conclusions :
Monocular implantation of TFNT00 yielded better intermediate visual acuity scores at all illuminance whereas ATLISA TRI839 performed better at near range in dimmer conditions. There was no significant difference of binocular DCVA between these 2 IOL models.
This abstract was presented at the 2022 ARVO Annual Meeting, held in Denver, CO, May 1-4, 2022, and virtually.