Final answer:
In clinical eye reports, 'O.D.' refers to the right eye, which is abbreviated from the Latin term 'Oculus Dexter'.
Step-by-step explanation:
In clinical eye reports, O.D. typically refers to the Right eye. The abbreviation stands for Oculus Dexter, which is Latin for right eye. When optometrists and ophthalmologists write prescriptions or make notations about a patient's vision, they often use 'O.D.' to signify the right eye and ‘O.S.’ (Oculus Sinister) for the left eye. If the prescription is meant for both eyes, they may use 'O.U.' (Oculus Uterque).