SpletPD: Stands for “pupillary distance”, the distance between your pupils. ADD: The additional value or ADD is commonly used for bifocal or progressive lenses, as well as for reading … Splet24. feb. 2024 · This is called a ‘binocular’ PD measurement. It is best practice to always write each eye individually, called ‘monocular’ measurements. If there is a PD written with two PD’s, like 55/52, or 29/28, this can be either a Far PD/Near PD, or a Left PD/Right PD, which can be determined by the size of the number as Far/Near is ‘binocular ...
How to Read an Eye Prescription: What the Numbers Mean
Splet27. sep. 2024 · If there are two PD numbers on your prescription, your PD was taken monocularly, meaning one eye at a time . Let’s say your numbers are 33.5/32.5. The first number is for your right eye (OD); the second is for your left eye (OS). Add these two numbers together and enter the total (ie. 33.5 + 32.5 = 66 PD) SpletThe SPH on your glasses prescription stands for sphere. Sphere refers to the power of your lens (measured in dioptre units) to correct the degree of short or long sight you have. Commonly, this number will be different for each eye. A + in the box indicates that you are long-sighted which means you find it difficult to see things close to you. fishing the shiawassee river in michigan
How to Read Eye Prescriptions - Felix Gray
SpletPUPILLARY DISTANCE (PD) measures the distance between the centers of your pupils. This measurement is used to determine where you look through the lens of your glasses … SpletThe PD/Pupillary Distance is the distance between your pupils, it ensures the correct centration of your Prescription lenses in front of your eyes. The most common method … Splet08. nov. 2024 · 1. Position yourself arm's length from your friend or yourself approximately 8 inches (20cm) away from a mirror. 2. Close your right eye and align the 0mm over the center of your left pupil. 3. Close your left eye and note the reading directly over your right pupil. That will be your Total PD. fishing the similkameen