Which of the following is NOT one of the main ways that patients develop antifungal ulcers?

• A. Scratch their eye with a tree branch
• B. Immunocompromised patients (Ex: hospital setting)
• C. Kids playing together at germy daycare
• D. Chronically beat up cornea

Answer: (C)

Fungal ulcers of the cornea arise when environmental fungi are directly introduced into the eye and manage to invade damaged corneal tissue. The most common scenario is trauma to the eye with vegetative material or soil, which creates a entry point for fungi such as Fusarium or Aspergillus to establish infection and form an ulcer. A weakened immune system or a chronically damaged cornea further impairs the eye’s defenses, making it easier for fungi to take hold and cause a ulcer. In contrast, being in a germy daycare isn’t a typical route for acquiring a fungal corneal infection; such outbreaks are not transmitted person-to-person in that setting and are more often due to environmental exposure and injury rather than daycare exposure.