Evaluation of Visual Acuity Results and Reading Performance With Salzburg Reading Desk After Implantation of Diffractive Trifocal IOL
Narrative Responses:
Purpose
Longterm clinical evaluation of a trifocal, diffractive intraocular lens (MIOL) including evaluation of the reading performance using the Salzburg Reading Desk.
Methods
In a long-term retrospective and prospective study patients undergoing cataract surgery received the trifocal Micro-F MIOL (PhysIOL) with a +3.5 D addition for near and a +1.75 addition for intermediate vision. 11 patients (21 eyes) have been enrolled in this ongoing study so far. Follow-up examinations included uncorrected and corrected distance visual acuity (UDVA, CDVA), uncorrected and distance corrected near (UNVA, DCNVA) and uncorrected and distance corrected intermediate visual acuity (UIVA, DCIVA). Bilateal uncorrected and corrected reading acuity, reading speed and smallest log-scaled print size at the preferred near and intermediate distance were evaluated using the Salzburg Reading Desk.
Results
Median UDVA was 0.06 logMAR (range: 0.42 to -0.12 logMAR ) and median CDVA was -0.08 logMAR (range: 0.10 to -0.18 logMAR). Median UNVA was 0.14 logMAR (range: 0.34 to -0.04 logMAR) and median DCNVA was 0.06 logMAR (range: 0.30 to -0.10 logMAR). Median UIVA was 0.02 logMAR (range: 0.28 to -0.08 logMAR) and median DCIVA was -0.06 logMAR (range: 0.22 to -0.16 logMAR). The distance corrected reading acuity examination at intermediate distance on the SRD resulted in a median of 0.18 logMAR (range: 0.44 to 0.09 logMAR).
Conclusion
The Micro-F trifocal, diffractive MIOL provides good postoperative functional results regarding far, intermediate and near vision with a high percentage of spectacle independence and patient satisfaction. Especially the functional results for intermediate distance are advantageous for the patients in daily life.