Randomized Controlled Trial on the Effects of Training in the Use of Closed-Circuit Television on Reading Performance

摘要: PURPOSE To investigate the effectiveness of training in use closed-circuit television (CCTV) on reading performance visually impaired patients. METHODS In a multicenter masked randomized controlled trial, 122 patients were either to treatment group that received usual delivery instructions from CCTV supplier combined with concise outpatient standardized training, or control only. The main outcome measure was performance, which obtained by measuring acuity, speed, errors, column-tracking time, and technical reading, approximately two weeks after had their 3 months later. Videotapes all measurements rated investigators. Training effects analyzed linear mixed modeling. RESULTS There no statistically significant differences results between group. However, introducing increased acuity (mean difference [MD] 0.93 logRAD; P < 0.01) maximum speed (MD 15 wpm; 0.01), decreased number errors 0.33; = 0.04), compared without CCTV. Average (P 0.05), time improved over time. CONCLUSIONS Prescribing seemed sufficient improve performance. Additional this device did not result further improvement. Based these results, low-vision rehabilitation centers may consider reallocating part resources into other evidence-based programs. (trialregister.nl number, NTR1031.).