Your eyeglass prescription contains other terms and abbreviations as well.
Other terms on your eyeglass prescription Eye doctors write prescriptions this way because when they come face to face with you, they see your right eye on their left (first) and your left eye on their right (second). On your eyeglasses prescription, the information for your right eye (OD) comes before the information for your left eye (OS). Though the use of these abbreviated Latin terms is traditional for prescriptions written for eyeglasses, contact lenses and eye medicines, some doctors and clinics have opted to modernize their prescriptions and use RE (right eye) and LE (left eye) instead of OD and OS. Your eyeglass prescription also may have a column labeled "OU." This is the abbreviation for the Latin term oculus uterque, which means "both eyes." They are abbreviations for oculus dexter and oculus sinister, which are Latin terms for right eye and left eye. The first thing to understand your eyeglass prescription is knowing what "OD" and OS" means. This article will help you decipher all parts of your prescription and discuss it knowledgeably with an optician or when you buy eyeglasses online.
You've just had an eye exam and your optometrist or ophthalmologist has given you an eyeglass prescription, but what do all those numbers on your eyeglass prescription mean?Īnd what about all those abbreviated terms, such as OD, OS, SPH and CYL?
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