A 22-year-old man presents with redness and a gritty sensation in his right eye that began after he got dust in his eyes at a construction site. Examination reveals a foreign body on the inner surface of the upper eyelid. What might be the cause?
The patient's symptoms may be due to traumatic or foreign body-induced conjunctivitis from dust particles at his work site. The foreign body should be removed and the patient's eye should be irrigated. Antibiotic eye drops may be prescribed to prevent secondary infection.