ASS ANTIMICROBIAL ADministrations have been used in several control programs and have been contemplated for many others. They have proven to be effective against some parasitic diseases (eg, onchocerciasis and filariasis), but at times have not lived up to expectations (eg, malaria). 1-3 Various forms of mass treatment have been used for bacterial diseases, including sexually transmitted chlamydia and syphilis. 4,5 The World Health Organization (WHO) 6 and its partners are now using repeated mass azithromycin administrations to control the ocular strains of chlamydia that cause trachoma, the world's leading cause of infectious blindness. 7 Trachoma meets the critical criteria for eradicability: there is an effective treatment for the ocular strains of Chlamydia trachomatis, and there is no known animal reservoir. Cur

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Keratoconus patients are at increased risk for sleep apnea, and different risk factors are associated with sleep apnea in keratoconus patients and controls. Ophthalmologists should consider screening keratoconus patients for obstructive sleep apnea, if appropriate.