What does the number add +2.25 on a eye prescription mean?
- Land-sharkLv 71 month ago
Depends if it's the first number. Second of three would be for Astigmatism and the third for the Axis.
You have Plus 2.25 diopters of farsightedness. So you'd need prescription 'reading glasses'
- BerndLv 71 month ago
An “add” number is for the additional prescription for reading glasses or bifocals. Darren, is not correct. Had you listed your full prescription, we could have had a better overview.
- 1 month ago
That is the strength of the contact prescription or how much it alters your vision