Which organism is the most common cause of bacterial keratitis in India, particularly in the context of corneal trauma with organic matter?
- A Pseudomonas aeruginosa
- B Staphylococcus aureus
- C Streptococcus pneumoniae ✓
- D Fusarium species
Correct answer: C. Streptococcus pneumoniae
Explanation
Streptococcus pneumoniae (pneumococcus) is the most common cause of bacterial keratitis in India, particularly following trauma. Pseudomonas predominates in contact lens-related keratitis in Western countries. While fungi (Fusarium) are common in agricultural trauma, the question specifically asks for the most common bacterial cause.
Reference: Basic and Clinical Science Course, Section 8: External Disease and Cornea, AAO 2023-2024 ed.
High-yield for: NEET PGINI-CETNExTFMGEUSMLEPLABMRCP
Written and medically reviewed by the StethoPrep medical team.