- Dec 30, 2000
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Solved. Dash that's part of the eye RX form before 'cylinder' is really a negative after all.
Hey. I just got a new eye prescription from a small kiosk OD in a big store. It's mostly pretty close to a couple old RXs that I dug up, except for the cylinder numbers apparently are now positive when in the past they were negative! I'm not sure whether it's an error, I'm reading it wrong, or if they really changed that much in the past 8 years (yeah, been a while). I'll check with the office later, if they will even tell me over the phone, but was looking to order online now... does anyone have experience to hazard a guess?
For reference, the previous RXs I have around were from 2012 and 2003. The RX cylinder pairs were -1.25 and -2.0 in 2003, then -1.25 and -2.5 in 2012, and finally now appear to be +1.50 and +2.75.
The reason I MAY be misreading it is because the form is printed with a dash between the sphere and cylinder lines that I'm not thinking is a negative (but could be). There's also an X between the cylinder and axis line, so they could be just standard values...? Are the cylinder numbers usually always negative??
Also, is it normal to NOT have a place to enter a separate near/reading PD number when ordering bifocals/progressives online? My understanding (limited) is that the main PD number is just for distance viewing. Or do they just estimate near vision PD, based on the distance PD number?
Hey. I just got a new eye prescription from a small kiosk OD in a big store. It's mostly pretty close to a couple old RXs that I dug up, except for the cylinder numbers apparently are now positive when in the past they were negative! I'm not sure whether it's an error, I'm reading it wrong, or if they really changed that much in the past 8 years (yeah, been a while). I'll check with the office later, if they will even tell me over the phone, but was looking to order online now... does anyone have experience to hazard a guess?
For reference, the previous RXs I have around were from 2012 and 2003. The RX cylinder pairs were -1.25 and -2.0 in 2003, then -1.25 and -2.5 in 2012, and finally now appear to be +1.50 and +2.75.
The reason I MAY be misreading it is because the form is printed with a dash between the sphere and cylinder lines that I'm not thinking is a negative (but could be). There's also an X between the cylinder and axis line, so they could be just standard values...? Are the cylinder numbers usually always negative??
Also, is it normal to NOT have a place to enter a separate near/reading PD number when ordering bifocals/progressives online? My understanding (limited) is that the main PD number is just for distance viewing. Or do they just estimate near vision PD, based on the distance PD number?
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