What question did this study set out to answer?

To highlight cataracts as an unusual initial sign of type 1 diabetes mellitus in a young patient.

April 24, 2026Open Access

Cataracts as the presenting symptom of type 1 diabetes mellitus

Key Points

To highlight cataracts as an unusual initial sign of type 1 diabetes mellitus in a young patient.
Case report of a single patient presenting with cataracts and diagnosed with type 1 diabetes
Laboratory tests confirming hyperglycemia prior to cataract surgery
Observation of postoperative complications including cystic macular edema
A 17-year-old boy presented with bilateral blurry vision leading to a diabetes diagnosis
Identified hyperglycemia before cataract surgery
Documented pseudophakic cystic macular edema post-surgery, an uncommon finding in pediatric diabetes cases

Abstract

Abstract Type 1 diabetes mellitus (DM) usually presents in the pediatric population as weight loss, polyuria, polydipsia, and, occasionally, with abdominal pain, vomiting, and Kussmaul breathing consistent with diabetic ketoacidosis. In this case report, we describe a 17-year-old boy presenting with fatigue and bilateral blurry vision, found to have hyperglycemia and subsequent DM on a laboratory draw before cataract surgery commenced. This patient also had an added complication of pseudophakic cystic macular edema of both eyes after uncomplicated cataract removal, which has not been described in previous case reports of pediatric patients with DM.

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