Potential Eye Disorders in People With and Without Type 2 Diabetes Mellitus Exposed to GLP-1 Receptor Agonists: An

Mya Murray1, Fabrizio Schifano2, Stefania Chiappini3

  • 1From Pharmacy, the Singleton Campus (M.M., A.G.), Swansea University, Wales, UK.

PubMed
Abstract

Insights

Glucagon-like peptide-1 receptor agonists (GLP-1RAs) may increase the risk of eye disorders, including retinopathy and cataracts, in patients with and without Type 2 diabetes. Further research is needed to confirm these findings.

Area of Science:

  • Ophthalmology
  • Endocrinology
  • Pharmacovigilance

Background:

  • Glucagon-like peptide-1 receptor agonists (GLP-1RAs) are increasingly prescribed for Type 2 diabetes (T2DM) and weight management.
  • Adverse drug reactions associated with GLP-1RAs are being identified, but their impact on ocular health requires further investigation.

Purpose of the Study:

  • To investigate the association between GLP-1RA use and the incidence of eye disorders.
  • To compare the reporting of eye disorders in patients with and without T2DM using GLP-1RAs.

Main Methods:

  • A retrospective disproportionality analysis of the Food and Drug Administration Adverse Event Reporting System (FAERS) database.
  • Utilized Python 3.11 to analyze FAERS data from January 2017 to September 2025, focusing on GLP-1RA reports.
  • Calculated Reporting Odds Ratios (RORs) with 95% confidence intervals, using metformin and orlistat as controls.

Main Results:

  • Semaglutide use was associated with increased reporting of optic neuropathy, cataracts, and retinopathy in T2DM patients.
  • Tirzepatide use showed increased reporting of optic neuropathy and macular degeneration in T2DM patients, and eye swelling in non-T2DM patients.
  • Liraglutide use demonstrated increased reporting of cataracts, diabetic retinopathy, and macular degeneration in T2DM patients, and cataracts and macular degeneration in non-T2DM patients.

Conclusions:

  • Findings suggest a signal of increased reporting for various eye disorders with GLP-1RA use compared to metformin.
  • Further research is warranted to validate these signals and establish biological causality for GLP-1RA-associated eye disorders.

Related Concept Videos

Diabetes Mellitus: Type 2 and Gestational01:22

Diabetes Mellitus: Type 2 and Gestational

Type 2 diabetes, characterized by insulin resistance, arises when the insulin receptors on cells lose responsiveness to insulin, diminishing the cell's capacity to take up glucose, resulting in elevated blood glucose levels. To receive a diagnosis of Type 2 diabetes, a series of blood glucose tests are necessary to assess whether the blood glucose falls within normal parameters. If the result is out of the normal range, a patient may be diagnosed as prediabetic or diabetic, depending on the...
4.2K
Diabetes: Symptoms, Diagnosis, and Complications01:15

Diabetes: Symptoms, Diagnosis, and Complications

For most patients, experiencing several weeks of polyuria, polydipsia, fatigue, and significant weight loss may indicate the presence of diabetes. Furthermore, adults displaying the phenotypic appearance of type 2 diabetes (particularly those who are obese and not initially insulin-requiring), may have islet cell autoantibodies, suggesting autoimmune-mediated β cell destruction and a diagnosis of latent autoimmune diabetes of adults (LADA). The categorization of glucose homeostasis is...
2.0K
Glucagon-like Receptor Agonists01:24

Glucagon-like Receptor Agonists

Incretins include glucagon-like peptide-1 (GLP-1) and glucose-dependent insulinotropic polypeptide (GIP), which stimulate insulin secretion post-meals. In type 2 diabetes, GIP's efficacy is reduced, making GLP-1 a viable drug target. GIP originates from preproGIP.
GLP-1, when administered in high doses intravenously, triggers insulin secretion, inhibits glucagon release, slows gastric emptying, reduces food intake, and restores normal insulin secretion. However, its rapid inactivation by...
816
Diabetes Mellitus: Overview and Type I Subtype01:22

Diabetes Mellitus: Overview and Type I Subtype

Diabetes mellitus is a chronic metabolic disorder characterized by high blood glucose levels due to inadequate insulin production, insulin resistance, or both. The condition affects millions worldwide and can significantly impact their health and quality of life.
Type 1 diabetes is an autoimmune disease in which the immune system mistakenly attacks and destroys the insulin-producing beta cells in the pancreas. As a result, the body is unable to produce sufficient insulin, and individuals with...
4.8K
Photoreceptors and Visual Pathways01:22

Photoreceptors and Visual Pathways

At the molecular level, visual signals trigger transformations in photopigment molecules, resulting in changes in the photoreceptor cell's membrane potential. The photon's energy level is denoted by its wavelength, with each specific wavelength of visible light associated with a distinct color. The spectral range of visible light, classified as electromagnetic radiation, spans from 380 to 720 nm. Electromagnetic radiation wavelengths exceeding 720 nm fall under the infrared category,...
8.6K
Oral Hypoglycemic Agents: Biguanides and Glitazones01:26

Oral Hypoglycemic Agents: Biguanides and Glitazones

Biguanides, particularly metformin (Glucophage), are insulin sensitizers that enhance glucose uptake, thereby reducing insulin resistance. Unlike sulfonylureas, metformin doesn't prompt insulin secretion, which helps to curb hypoglycemia risk. Metformin is beneficial in treating conditions like polycystic ovary syndrome due to its insulin-resistance reduction capability. The drug's primary action involves curtailing hepatic gluconeogenesis, a significant contributor to high blood...
559