Evaluation Of Halo And Glare Symptoms In Patients Implanted With A New Full Range Of Focus Intraocular Lens With Spiral Optic Design Developed With Artificial Intelligence

Clinical evaluation of halo dysphotopsia and glare profiles of a full range of vision intraocular lens (IOL) with an AI-designed spiral optic with the Real Artificial Lens Vision (RALV) device (DEZIMAL GmbH, Vienna, Austria) and comparison with a diffractive trifocal IOL. Show real-world patient feedback in terms of halo and glare after spiral optic IOL implantation.

Clinica Baviera-Aier Group, Valencia, Spain. OCL Vision, London, England. ADVALIA Vision, Milano, Italy. Department of Ophthalmology and Optometry at Medical University of Vienna, Austria. Department of Ophthalmology at University Eye Clinic Heidelberg, Germany. Auckland Eye, New Zealand . Clínica Privada de Oftalmologia, Lisbon, Portugal . Vision Scotland, Edinburgh, Scotland. Rothschild Foundation Hospital, Paris, France

The preoperative examinations included slit lamp examination, keratometry and biometry, as well as subjective refraction. The follow-up visits were scheduled for one month and three months postoperatively. The patients were asked to assess the size and intensity of halo and glare with the halo and glare simulation software (ViSU-L GmbH, Hannover, Germany).

A total of 91 patients (182 eyes) were operated. 52 patients were available for examination at one month after surgery. Mean subjective refraction sphere, cylinder and refractive spherical equivalent (MRSE) improved from 0.70 ± 2.96 D, -0.84 ± 0.74 D and 0.26 ± 2.96 D preoperatively to -0.18 ± 0.33 D, -0.25 ± 0.28 D and -0.30 ± 0.33 D postoperatively. Vision simulation, mean halo size and intensity were 29 ± 24 and 34 ± 29, respectively, and mean glare size and intensity were 8 ± 15 and 11 ± 18, respectively.

The halo and glare analysis showed very mild type 1 results with the spiral IOL. Results with the spiral IOL were compared with published results of diffractive trifocal IOLs using the same software to assess halo and glare size and intensity. Comparability analysis was confirmed by the software manufacturer. The comparison with published data of diffractive trifocal IOLs revealed a trend towards milder symptoms of halo and glare in size and intensity of the spiral. These findings implicate that patients may experience less dysphotopsia with the spiral IOL than with a diffractive trifocal IOLs.