Am Fam Physician. 2008;77(11):1505
The article “Differential Diagnosis of the Swollen Red Eyelid” (December 15, 2007, page 1815) contained an error regarding internal hordeolum. On page 1822, the third paragraph of the left column, should read: “An internal hordeolum is a staphylococcal infection of a meibomian gland. It is unilateral and presents with pain, eyelid edema, and erythema more diffuse than that of an external hordeolum.” The online version of this article has been corrected.