PurposeMost patient-reported outcome measures used in ophthalmology show floor effects in a very low vision population, which limits their use in vision restoration trials. The Impact of Vision Impairment–Very Low Vision scale (IVI–VLV) was developed to specifically target a very low vision population, but its test–retest reliability has not been investigated yet.MethodsThe German version of the IVI–VLV was administered twice to patients with stable disease of a low vision clinic. Test and retest person measures of the IVI–VLV subscales were obtained from Rasch analysis. Test–retest reliability was investigated by intraclass correlation coefficients and Bland–Altman plots.ResultsWe included 134 patients (72 women, 62 men) at a mean age of 62 ± 15 years. The intraclass correlation coefficients were 0.920 (95% confidence interval, 0.888–0.944) for the activities of daily living and mobility subscale of the IVI–VLV and 0.929 (95% confidence interval, 0.899–0.949) for the emotional well-being subscale. Bland–Altman plots did not indicate any systematic bias. In linear regression analysis, test–retest differences were not significantly associated with visual acuity or administration interval.ConclusionsBoth subscales of the IVI–VLV showed excellent repeatability independent of visual acuity and length of repeat interval. Further validation steps including an assessment of the patient-reported outcome measure's responsiveness are required for use in vision restoration trials.Translational RelevanceThe results support repeated use of the IVI–VLV as a patient-reported end point in future studies in very low and ultralow vision populations.