This is pretty normal, depending on the amount of variation of course. Basically, for each calculate the spherical equivalent (SPHEQ) = SPH + 0.5 * CYL.
If SPHEQ is within 0.5 diopters of each other it’s more or less expected.
This is the short version and there’s a lot more nuance (like the AX and ADD values on the Rx), if anyone is interested or has questions I can add more.
Source: I was CTO for an online eye exam and have some patents related to this.
If SPHEQ is within 0.5 diopters of each other it’s more or less expected.
This is the short version and there’s a lot more nuance (like the AX and ADD values on the Rx), if anyone is interested or has questions I can add more.
Source: I was CTO for an online eye exam and have some patents related to this.