Binocular Functional Results After Bilateral Implatation Of A Diffractive Edof Iol In Pupils With Photopic Size Below 2,5Mm

In diffractive optics in general the full diameter of the IOL is used to increase uncorrected distance and near visual acuity. Our interest was to evaluate if also patients with small pupils profit from this type of IOL. We evaluated the binocular functional results for distance and intermediate visual acuity after bilateral Implantation of a diffractive EDOF IOL (AT Lara, Zeiss, Germany) in cataract patients with small pupils.

Augenzentrum ONE, Alter Markt 1-2, 24105 Kiel, Germany

We retrospectively analyzed the postoperative results of 20 consecutive patients with cataract after bilateral implantation of a diffractive EDOF IOL in patients in patients with small pupils. The pupillometry was performed with the Sirius (SCHWIND,GERMANY) device. All patients had pupils in a range from 2,0 to 2,5mm. Only patients with no other pathological findings than the cataract and no significant HOA were included. The surgeries were performed by one surgeon. Target refraction was emmetropia. All postoperative examinations were performed under the same conditions. Major endpoints were the uncorrected binocular distance VA, intermediate VA in 55cm and the refractive outcome.

No intraoperative or postoperative complications occurred. All patients were within +- 1,0dpt. from target refraction. At four weeks postoperative all patients had an uncorrected binocular VA of logMar 0,0. the binocular UCIVA was 0.2 LogRad. All patients could read newspaper print. No patient needed spectacles for distance or computer work. The functional results are compareble with published data from patients with normal pupil size. 

Small preoperatively measured pupil size in cataract patients does not interfere in the incorrected intermediate visual acuity and uncorrected distance visual acuity under photopic conditions In a diffractive EDOF IOL. Small pupils between 2,0 and 2,5mm seem to be no exclusion criteria for this type of IOL. How much the pinhole effect of the small pupil has a positive impact on the diffractive optic especially in the intermediate range needs to be evaluated.