Review Question - QID 110010

A 32-year-old G2P2 woman gives birth to a boy at 39 weeks gestation. The mother recently immigrated from Somalia and had no prenatal care. She refused all intrapartum medications. The boy’s Apgar scores were 7 and 9 at 1 and 5 minutes, respectively. His height and weight were in the 20th and 15th percentiles, respectively. Mother and child were discharged the day after birth. However, 7 days later, the mother presents to the pediatrician because she noticed redness and discharge in her baby's eyes. His temperature is 98.8°F (37.1°C), blood pressure is 105/65 mmHg, pulse is 120/min, and respirations are 22/min. On exam, the boy has scant non-purulent mucoid bilateral eye discharge and conjunctival hyperemia. Which of the following is the most appropriate treatment for this patient?