Clinical outcomes of new toric trifocal diffractive intraocular lens in patients with cataract and stable keratoconus: Six months follow-up.
OBJECTIVE
To evaluate the clinical results of toric trifocal diffractive intraocular lens in eyes with cataract and mild keratoconus.


METHODS
Five keratoconus patients (10 eyes) that had bilateral AT LISA 939 implantation were selected and had followed in 3-time horizons of 1, 3, and 6 months. Patients were 46 to 65 years old age, corneal astigmatism of (2.00 D at 6.75 D) and cataract that all of them needed cataract surgery. The distance, intermediate and near visual acuities, defocus curve, ocular aberrations, contrast sensitivity, were measured as effectiveness criteria.


RESULTS
Average of binocular uncorrected distance visual acuity (UDVA) improved from 0.72 log MAR ± 0.11 (SD) to 0.04 ± 0.04 (P < 0.05) log MAR, average of uncorrected binocular intermediate visual acuity (UIVA) (80 cm) improved from 0.52 ± 0.07 log MAR to 0.14 ± 0.04 (P < 0.05) log MAR, and average of binocular uncorrected near visual acuity (UNVA) improved from 0.48 ± 0.09 log MAR to 0.02 ± 0.07 (P < 0.05) log MAR at 6 months, respectively. Contrast sensitivity testing showed acceptable results, the binocular defocus curve corroborate were in appropriate good visual acuity even at the intermediate distances, by a gentle slope less than log MAR 0.2 at -1.5 D, with regard to the best distance visual acuity at the 0 D defocus.


CONCLUSIONS
Trifocal AT LISA 939MP IOLs provided appropriate distances, near and intermediate of the visual results. Prediction of the refractive results and optical performances were good.
Eye Research Center, Tehran University of Medical Sciences Eye Research Center, Shahid Beheshti University of Medical Sciences and Health Services, Tehran Eye Research Center, Isfahan University of Medical Sciences and Health Services, Isfahan, Iran.
Doroodgar
D
Farideh
Sanginabadi
S
Azad
Niazi
N
Feizollah
Niazi
N
Sana
Alinia
A
Cyrus
Ghoreishi
G
Mohammad
Baradaran-Rafii
BR
Alireza
D000368:Aged; D001251:Astigmatism / Q000150:complications; D002387:Cataract Extraction / Q000379:methods*; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007640:Keratoconus / Q000150:complications / Q000601:surgery*; D019654:Lens Implantation, Intraocular / Q000379:methods*; D007910:Lenses, Intraocular; D008297:Male; D008875:Middle Aged; D017060:Patient Satisfaction; D011446:Prospective Studies; D011474:Prosthesis Design; D014792:Visual Acuity