Visual Performance of Two Diffractive Trifocal Intraocular Lenses: A Randomized Trial.
J Refract Surg
; 37(7): 460-465, 2021 Jul.
Article
en En
| MEDLINE
| ID: mdl-34236906
ABSTRACT
PURPOSE:
To compare two trifocal intraocular lenses (IOLs), the RayOne Trifocal RAO603F IOL (closed-loop haptic IOL; Rayner Intraocular Lenses Limited) and the AT Lisa tri 839 MP IOL (plate-haptic IOL; Carl Zeiss Meditec AG), concerning optical and capsular bag performance.METHODS:
Patients scheduled for cataract surgery received either a closed-loop haptic IOL or a plate-haptic IOL in the first eye and the other IOL in the second eye. Three months postoperatively, autorefraction and subjective refraction, uncorrected and corrected distance visual acuity at 4 m, 80 cm, and 40 cm, an objective reading test (Salzburg Reading Desk; SRD Vision), a defocus curve, IOL tilt and decentration, a questionnaire about dysphotopsia, and grading of halos with a halometer were performed.RESULTS:
Eighty-eight eyes of 44 patients were included. Visual acuity was comparable between both IOLs. The closed-loop haptic IOL performed better in the defocus curve at -1.50 diopters (D) (0.08 ± 0.10 vs 0.12 ± 0.09 logMAR; P < .01). The plate-haptic IOL had better contrast sensitivity without glare under mesopic and photopic conditions in miosis (P = .0018 and .002, respectively) and mydriasis (P = .017 and .003, respectively). Significant differences were found for less overall subjective disturbance (P = .047) and starbursts (P = .039) for the plate-haptic IOL, but not for the other positive dysphotopsia symptoms.CONCLUSIONS:
Both trifocal IOLs delivered good and comparable visual function with low degrees of disturbing dysphotopsia. The closed-loop haptic IOL was slightly superior in the defocus curve, whereas the plate-haptic IOL was slightly superior concerning contrast sensitivity and positive dysphotopsia. [J Refract Surg. 2021;37(7)460-465.].
Texto completo:
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Bases de datos:
MEDLINE
Asunto principal:
Facoemulsificación
/
Lentes Intraoculares
Tipo de estudio:
Clinical_trials
/
Observational_studies
Límite:
Humans
Idioma:
En
Revista:
J Refract Surg
Asunto de la revista:
OFTALMOLOGIA
Año:
2021
Tipo del documento:
Article