Hormonal
Semaglutide treatment for type 2 diabetes does not directly cause retinal damage; observed early worsening of diabetic retinopathy is primarily driven by the magnitude and speed of HbA1c reduction rather than the drug itself.
If you have type 2 diabetes and are starting semaglutide, do not avoid it out of fear of blindness. The risk of retinopathy worsening is linked to how fast your blood sugar drops, not the drug itself. To stay safe, your doctor should check your eyes before starting, and may reduce your insulin or sulfonylurea dose to prevent a rapid glucose drop. Regular eye exams are essential.
Semaglutide per se seems to cause no direct damage to the retina, and the reported adverse effects might even be ascribed to a bias in the trial design. ... the magnitude and speed of HbA1c reduction, a phenomenon also associated with insulin treatment and bariatric surgery.
Why this rating
Based on multiple large CVOTs (SUSTAIN-6, LEADER, etc.) and meta-analyses, though the paper notes heterogeneity in DR adjudication methods.
Source
Semaglutide-eye-catching results
Maja Cigrovski Berković et al. · World Journal of Diabetes · 2023
DOI 10.4239/wjd.v14.i4.424
Related findings · Hormonal
- Initial treatment for type 2 diabetes should be a combination of metformin and either an SGLT-2 inhibitor or a GLP-1 receptor agonist to achieve cardiorenal protection, rather than monotherapy or older agents like sulfonylureas.Strong
- For patients with specific monogenic obesity syndromes (leptin deficiency, POMC/PCSK1/LEPR mutations), targeted pharmacotherapy (recombinant leptin or setmelanotide) is highly effective and should be prioritized, unlike in polygenic obesity.Strong
- Continued weekly administration of 2.4 mg subcutaneous semaglutide prevents weight regain and promotes further weight loss in adults with overweight or obesity, whereas switching to placebo results in significant weight regain.Strong
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