Pink eye  also called conjunctivitis  is inflammation of the thin, clear covering of the white of the eye and the inside of the eyelids (conjunctiva). Although the conjunctiva is transparent, it contains blood vessels that overlay the sclera of the eye.
Health Reimbursement Account is a notional derivative of a Health Reimbursement Arrangement (HRA), a type of US employer-funded health benefit plan that reimburses employees for out-of-pocket medical expenses.
Electronic System for Travel Authorization. The Electronic System for Travel Authorization (ESTA) is an automated system that determines the eligibility of visitors to travel to the U.S. under the Visa Waiver Program (VWP). ESTA was mandated by the Implementing Recommendations of the 9/11 Commission Act of 2007 for travelers from VWP countries arriving the U.S. by air or sea.