An interventional study of visual perceptual learning in Diabetic Retinopathy (DR) and Visual Perception, sponsored by The First Affiliated Hospital of Anhui Medical University. Completed at 1 site in China. Open to participants aged 18 Years to 65 Years. Per ClinicalTrials.gov, last updated 2025-07-31.
Sponsored by The First Affiliated Hospital of Anhui Medical University · Not applicable, Interventional, and Treatment
Investigators aim to investigate the effectiveness of visual perceptual learning on visual perceptual function in participants with diabetic retinopathy and to provide novel therapeutic insights for visual functional rehabilitation in diabetic retinopathy.
773 studies on the registry are indexed under Diabetic Retinopathy; 139 are open to participants now.
This study's enrollment of 36 is below the median of 78 across 480 interventional studies indexed under Diabetic Retinopathy.
Browse Diabetic Retinopathy studies →The First Affiliated Hospital of Anhui Medical University is the lead sponsor of 42 studies on the registry; 16 are open to participants now.
Counted across the registry records on this site, refreshed daily.
Exclusion Criteria:
Procedure: visual perceptual learning
Participants in the VPL group performed 40 minutes of daily monocular training at home for three months, with follow-up evaluations conducted at 1 month and 3 months after training initiation.
contrast sensitivity
The contrast sensitivity measurements include grating acuity, first-order motion stimulus perception sensitivity, second-order stationary stimulus perception sensitivity and second-order motion stimulus perception sensitivity, which represent the reciprocal of the contrast threshold.
Time frame: From enrollment to the end of treatment at 12 weeks
The Low Vision Quality of Life Questionnaire
This instrument has demonstrated high reliability and validity, and is sensitive to changes in visual function among individuals with vision loss. The minimum value is 25 and the maximum value is 125. Higher scores indicate better quality of life.
Time frame: From enrollment to the end of treatment at 12 weeks
The Hospital Anxiety and Depression Scale
The scale aims to measure anxiety and depression levels in hospital patients with high reliability and validity. The Hospital Anxiety and Depression Scale (HADS) provides separate scores for anxiety (HADS-A) and depression (HADS-D), each ranging from 0 to 21. A lower score indicates a lesser degree of anxiety and depression.
Time frame: From enrollment to the end of treatment at 12 weeks
Documents are hosted by the registry — open the source record to download them.
Plan to share: No — Individual participant data will not be shared due to ethical and privacy considerations. Participants did not consent to data sharing in the informed consent form.
This study is completed, as verified in Jul 2025. You cannot join it, but the record below documents what was studied.
Get an email when the registry record changes — status, dates, results — or when someone posts here.
Sign in to followQuestions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.
Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.
Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.
The First Affiliated Hospital of Anhui Medical University