Visual Perceptual Learning Based on Adaptive Contrast Detection Training Enhances Vision and Contrast Sensitivity in Diabetic Retinopathy.

What was studied

This trial tested home-based vision training in people with diabetic retinopathy. The training was a 3-month grating detection task. Patients were randomized 1:1 to training or control. The training group had 12 people and the control group had 16. Some people were excluded for poor adherence. The team tracked vision, contrast sensitivity, eye imaging and quality of life.

What they found

In the training group, visual acuity improved. Grating acuity rose too. So did contrast sensitivity. A significant group-by-time effect was found for these measures. The quality of life score rose. It correlated with the gain in grating acuity. Eye imaging values stayed stable in both groups.

What it means for patients

The authors say the results reveal plasticity in the visual system in diabetic retinopathy. They say contrast detection training may carry over to motion tasks. They say the study adds support for training as a potential treatment.

Why it is not certain yet

The groups were small, with 12 and 16 people. Some people were excluded for poor adherence or incomplete follow-up. The control group was measured at fewer time points. The abstract does not give long-term results.

Source

Visual Perceptual Learning Based on Adaptive Contrast Detection Training Enhances Vision and Contrast Sensitivity in Diabetic Retinopathy.

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