In children, what age group is most commonly affected by orbital cellulitis secondary to sinus infection?

Orbital cellulitis is an infection that primarily involves the tissues surrounding the eye and is often associated with sinus infections, particularly in children. The age group that is most commonly affected by orbital cellulitis secondary to sinus infections tends to be in the range of 7 to 12 years.

Children within this age range typically experience upper respiratory infections that can lead to sinusitis. The anatomical and immune system factors during this developmental stage contribute to the higher likelihood of infections extending from the sinuses to the orbit, leading to orbital cellulitis.

Younger children (under 5 years) may be affected as well, but the incidence tends to peak in the school-age group due to increased exposure to pathogens and the maturity of their sinuses, which are more developed than in younger children, thereby increasing the risk of secondary infections.

The older age group (13-18 years) is generally less affected, as by this age, the anatomy is well developed, and the commonality of sinus infection-induced complications tends to decrease. Thus, 7 to 12 years is the most commonly affected age group and aligns with the epidemiological trends associated with this condition.