What age group is most frequently affected by chalazia?

• A. Children under 10
• B. Adults aged 30-50
• C. Seniors over 65
• D. Teens 13-19

Answer: (B)

Chalazion is a noninfectious swelling caused by obstruction of a meibomian gland in the eyelid, leading to a lipogranulomatous reaction. This tendency increases with age because meibomian gland dysfunction and chronic lid-margin disease become more common, often linked to blepharitis, rosacea, or seborrheic dermatitis. That rise in gland dysfunction during middle adulthood makes adults in their 30s to 50s the group most frequently affected. In children the condition occurs but less often, and in seniors age-related eyelid changes don’t push the frequency higher than the midlife peak. So the 30–50-year range best fits the population most commonly impacted.