12 weeks of intensive lifestyle intervention showed mild improvement in diabetic retinopathy, with reduction in VEP latencies and mild changes in retinal nerve fiber layer thickness, though no major changes in amplitudes or central macula thickness were observed.
Key Findings
Results
A 12-week intensive lifestyle intervention program produced overall mild improvement in pattern reversal and flash visual evoked potentials (PRVEP and FVEP) in patients with diabetic retinopathy.
Study was a quasi-experimental design conducted at AIIMS, Nagpur
75 patients with type 2 diabetes mellitus of greater than 5 years duration were recruited
Lifestyle intervention included modification in dietary pattern, regular exercise, healthy sleep schedule, and stress management
Initial intervention was a 1.5-hour lifestyle intervention session followed by follow-up visits on 15th, 30th, and 45th days with biweekly telephonic/WhatsApp follow-up in between
Reduction in latencies was observed but no major changes in amplitudes were found
Results
Mild changes in retinal nerve fiber layer (RNFL) thickness were observed following the 12-week intervention, including a reduction in the severity of RNFL thickening in both eyes.
Optical coherence tomography (OCT) was used to assess retinal nerve fiber layer changes
Mild changes along with a reduction in the severity of thickening of the RNFL of both eyes were seen
No major changes in central macula thickness were observed
Visual evoked potential (VEP) and OCT were the primary outcome measurement tools
Conclusions
Lifestyle modifications involving diet, exercise, sleep, and stress management were found to play a crucial role in the improvement of diabetic retinopathy.
The intervention components included dietary pattern modification, regular exercise, healthy sleep schedule, and stress management
Study population consisted of type 2 diabetes mellitus patients with disease duration greater than 5 years
Clinical history and anthropometry parameters were recorded at baseline
The study was conducted in the Department of Physiology in collaboration with the Department of Ophthalmology
Background
Diabetic retinopathy is identified as the most common cause of severe vision loss in adults and results from long-term microvascular complications of diabetes mellitus.
DR is described as a microvascular disorder occurring due to the long-term effects of diabetes mellitus
Diabetic retinopathy may lead to vision-threatening damage to the retina and eventually blindness
The study used both OCT and VEP to evaluate retinopathy status, reflecting the multidimensional nature of the condition
Talmale P, Phatak M, Bang P. (2026). Diabetic Retinopathy: Does 12 Weeks of Intensive Lifestyle Intervention Cause Any Improvement?. The Journal of the Association of Physicians of India. https://doi.org/10.59556/japi.74.1437