Abstract
Purpose :
To describe the patient's profile regarding intraocular lens (IOL) selection, either multifocal or monofocal. And their differences in age, sex, ocular surgery, IOL power and visual acuities.
Methods :
Evaluation of 34 randomly selected presbyopic patients that underwent phaco with intraocular lens (IOL) implantation, 17 with multifocal lens (group 1; G1) and the rest with monofocal lens (group 2; G2) in 2020 at Zambrano Hellion Medical Center, Tecnologico de Monterrey. Patients were evaluated for age, sex, previous ocular or refractive surgery, time from surgery proposal to IOL implantation (TSPTI), time to fellow eye surgery, LogMAR preoperative best uncorrected visual acuity (BUVA) and best corrected visual acuity (BCVA), IOL power, tenth day postoperative visual acuity (VA10), and wether residual ametropia was present.
Results :
From the total 34 patients, 52.9% (n= 18) were female and 47.06% (n= 16) male. Mean age at surgery was 62.55 ± 11.04 years, 59.35 ± 8.06 for G1 and 65.76 ± 12.83 for G2 (p= 0.09). Of all records, 26.4% (n= 9) had previous ocular surgery, 23.5% in G1 and 29.4% of G2 (p= 0.70), but six had previous refractive surgery, 17.6% in G1 and 17.6% in G2 (p= 1.0).
TSPTI was 46 median IQR days, 51 days in G1 and 35 days in G2 (p= 0.18). Half (n= 17, 64.7% of G1 and 35.29% of G2) of patients had fellow eye surgery in 35 MdnIQR days, 35 days for G1 and 40 days for G2 (p= 0.51).
BUVA before surgery was 0.5 MdnIQR with a preoperative BCVA of 0.1 MdnIQR. G1 had better BUVA (0.4, p= 0.015) and BCVA (0, p= 0.0007) in comparison to G2 BUVA (0.9) and BCVA (0.3).
Mean IOL power was 21.50 ± 4.3 D. IOL power was greater (p= 0.017) in G1 (mean SD 22.75 ± 3.6 D) than in G2 (mean SD 19.93 ± 4.6 D).
The sample VA10 was 0 MdnIQR. G1 had better (p= 0.036) VA10 (0) compared to G2 (0.2).
Residual ametropia was found in 9 patients, 10.7% in G1 and 26.1% in G2 (p= 0.15).
Conclusions :
Age, sex and previous surgeries were not significant between groups. G2 had a tendency to have a faster TSPTI, but a slower time to fellow eye surgery. G1 had significantly better BUVA and BCVA preoperatively, as well as better VA10 than G2 with less incidence of residual ametropia, at the expense of greater IOL power requirement. IOL type selection is due to the patients perspective and desire to achieve the best possible visual acuity.
This is a 2021 ARVO Annual Meeting abstract.