To compare (low contrast) visual acuity (VA) and contrast sensitivity (CS) - both at intermediate distances under nighttime driving conditions in a driving simulator between patients with bilateral EYHANCE IOLs OR bilateral conventional monofocal IOLs. Visual function testing in the driving simulator will be assessed without AND with (static) glare.~Additionally: Assessment of individual response times, scanpath characteristics, evaluation of test retest reliability and self-evaluation of (intermediate) vision and visual impairment related to glare.~Simulator~Patients are instructed to drive with a constant speed of 40 km/h on a virtual parcours (straight lane). For testing of either (low contrast) visual acuity or contrast sensitivity, 8-position LANDOLT C's are presented at three locations (within the simulator car, AUDI A4, Ingolstadt/FRG):~(i) At the center of the instrument panel (distance 0.xx m) (ii) At the center of the navigation monitor (y.yy m) (iii) At the center of the rear monitor (z.zz m) A high resolution acoustic attention guidance for immediate gaze direction of the patients towards the three above-mentioned visual stimulus locations (i-iii) is mandatory.~Patients responses are recorded and response times can be extracted from the recordings.~Clinical ophthalmological-optical examinations~Medical/ophthalmological history~(Uncorrected and Best-corrected) visual acuity (RE,LE,BE) with remote and intermediate (66cm) 8 position LANDOLT C's.~LANG I stereotest (near distance)~Ocular alignment & ocular motility~Efferent & afferent pupillomotor status~Mesopic contrast sensitivity without/with glare (Optovist, VISTEC Inc./Olching/FRG)~Intraocular straylight perception (Q-Quant, OCULUS Inc, Wetzlar/FRG)~Slit lamp (anterior segment)~Ophthalmoscope (central fundus and fixation)~Primary objectives: log visual acuity (logVA) at preset low contrast level of 1:2.7 (logCS = 0.2) AND log contrast sensitivity (logCS) at a preset visual acuity level of 0.1 = 2/20)~Secondary objectives: test retest reliability (as operationalized by LOA = limits of agreement) AND response time (i.e. time interval between onset of stimulus presentation and final response) AND scanpath characteristics (fixation duration, fixation stability, annotation to regions of interest; saccade amplitude) self-evaluation (questionnaire, using visual analogue scales = VAS)~SHAPIRO WILK test (statistical testing for proving/disproving normal distribution) Descriptive statistics (either MEAN, standard deviation, in case of normally distributed data - else, MEDIAN, inter-quartile range (IQR).~Assessment of test/retest reliability: BLAND ALTMAN plots, limits of agreement (LOA) Between-group comparison: t-test (unpaired samples), in case of normally distributed data - else, WILCOXON signed-rank test
To compare (low contrast) visual acuity (VA) and contrast sensitivity (CS) - both at intermediate distances under nighttime driving conditions in a driving simulator between patients with bilateral EYHANCE IOLs OR bilateral conventional monofocal IOLs. Visual function testing in the driving simulator will be assessed without AND with (static) glare.~Additionally: Assessment of individual response times, scanpath characteristics, evaluation of test retest reliability and self-evaluation of (intermediate) vision and visual impairment related to glare.