GROSS ANATOMY

Detailed explanation-1: -OD means “right eye.” OD is the traditional abbreviation used for the right eye because it’s short for oculus dexter, which means “right eye” in Latin. Sometimes, doctors will just use “RE” or “right” for the right eye.

Detailed explanation-2: -O.D.-This is oculus dexter, meaning right eye. O.S.-This is oculus sinister, meaning left eye. O.U.-This is oculus uterque, meaning both eyes. Along the top, you might see different verbiage that generally has to do with measurements related to different aspects of your vision.

Detailed explanation-3: -With refractive correction. OD, OS, OU. Right eye, left eye, both eyes. C/D. Cup-to-disc ratio of the optic nerve.

Detailed explanation-4: -DUAL PD, or monocular PD, consists of two numbers and is the distance between the centers of each pupil to the bridge of the nose. Dual PD is usually written in the following notation: 32/30. The first number is always the right eye (OD) measurement, and the second number is the left eye (OS).

Detailed explanation-5: -Normal eyes would typically have about 0.50 dioptres of negative cylinder or cyl power at an axis number of 180. Typically, most people have between 0.5 to 0.75 dioptres of astigmatism and won’t need contact lenses or glasses to see clearly. Those with astigmatism will have a dioptric power of 1.5 and above.