Reading your prescription starts by identifying which values belong to which eye. “OD” refers to your right eye and “OS” to ...

For most people who wear prescription eyeglasses or contact lens, it’s an annual or biannual ritual: a trip to “the eye doctor” — usually an optometrist — for an exam and an updated prescription.

Online tools can help find existing glasses prescriptions without an exam. Here’s a hands-on review of one app to do just that, plus other top picks. If you’re one of them, you know how expensive and ...

The abbreviations OD and OS that may be included with corrective eyewear prescriptions stand for “oculus dexter” and “oculus sinister.” In other words, this is Latin for “right eye” and “left eye,” ...

For most people who wear prescription eyeglasses or contact lens, it’s an annual or semi-annual ritual: a trip to “the eye doctor” — usually an optometrist — for an exam and an updated prescription.

Visiting an eye doctor is no longer the only way to receive a prescription for glasses. Many online tools and services can provide a person with this information, but these should not substitute a ...