Ophthalmology Which of the following is the MOST COMMON cause of membranous conjunctivitis? A Moraxella B Gonococcus C Staphylococcus D Corynebacterium diphtheriae 💡 Explanation Which of the following is the MOST COMMON cause of membranous conjunctivitis? ✓ Correct Answer: D. Corynebacterium diphtheriae