Trends in pathogens causing microbial keratitis in studies conducted in Mexico: a 38-year literature review.

We identified 48 studies on infectious keratitis in Mexico (1988-2026), including 14,651 patients.

Bacterial keratitis was the most frequent form; gram-positive cocci, especially Staphylococcus epidermidis and Staphylococcus aureus, predominated, whereas Pseudomonas aeruginosa was the leading gram-negative pathogen, particularly among contact lens wearers, with higher frequencies reported in Monterrey and Guadalajara than in Mexico City.