On a prescription, what does the abbreviation BID stand for?

The abbreviation BID stands for "twice a day" in medical and pharmaceutical contexts, particularly on prescriptions. It is derived from the Latin phrase "bis in die," which translates to "twice in a day." This instruction is commonly used to indicate to patients how often they should take a medication or apply a treatment. Understanding this abbreviation is crucial for optometric technicians, as it directly impacts patient adherence to prescribed treatment regimens and can affect the effectiveness of therapies for various ocular conditions. Clear communication regarding such abbreviations ensures that patients properly follow their medication schedules, ultimately leading to better health outcomes.