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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.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| visual perceptual learning group | Experimental |
| |
| control group | No Intervention |
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| visual perceptual learning | Procedure | 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. |
| Measure | Description | Time Frame |
|---|---|---|
| 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. | From enrollment to the end of treatment at 12 weeks |
| Measure | Description | Time Frame |
|---|---|---|
| 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. | From enrollment to the end of treatment at 12 weeks |
| Measure | Description | Time Frame |
|---|---|---|
| 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. | From enrollment to the end of treatment at 12 weeks |
Inclusion Criteria:
Exclusion Criteria:
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| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| The First Affiliated Hospital of Anhui Medical University | Hefei | Anhui | China |
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.
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| Type | Includes Protocol | Includes SAP | Includes ICF | Document Label | Document Date | Document Uploaded Date | Document File Name |
|---|---|---|---|---|---|---|---|
| Prot_SAP | Yes | Yes | No | Study Protocol and Statistical Analysis Plan | Aug 10, 2024 | Jul 16, 2025 | Prot_SAP_000.pdf |
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| ID | Term |
|---|---|
| D003930 | Diabetic Retinopathy |
| ID | Term |
|---|---|
| D012164 | Retinal Diseases |
| D005128 | Eye Diseases |
| D003925 | Diabetic Angiopathies |
| D014652 | Vascular Diseases |
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| D002318 |
| Cardiovascular Diseases |
| D048909 | Diabetes Complications |
| D003920 | Diabetes Mellitus |
| D004700 | Endocrine System Diseases |