Defining Individual Near and Intermediate Distances in Multifocal IOL Designs
Purpose
The aim of this study was to determine the best near and intermediate distance in patients that underwent implantation of different multifocal intraocular lens (MIOL) models.
Methods
In a prospective study patients that underwent cataract and refractive lens exchange with implantation of different MIOLs (Tecnis: ZKB00, ZLB00, ZMB00; Alcon Restor SN6AD1; Oculentis: Comfort, MF30; AT LISA 839; PhysIOL Micro-F) were examined. Outcome parameters were UNVA, UIVA, DCNVA, DCIVA monocular and binocular as well as reading speed and reading distance (Salzburg reading desk).
Results
Mean uncorrected binocular reading distances were: ZKB00 = 50.8cm, ZLB00 = 40.2cm, Restor = 41.3cm, Comfort = 47.4cm, MF30 = 39.30cm, AT LISA 839 = 38.9cm and Micro-F = 37.25cm. There was a statistical significant difference between the reading distances.
Conclusion
Finding the right MIOL for each patient is a difficult task. Daily activities and especially work or hobbies under dim light conditions are one crucial influence factor. With the option to know the individual near and intermediate distances of or patients, we can additionally fulfil their needs performing their daily tasks and their favourite distance.