RX calls for a prism OD 12BU
OS 12BD
If Fresnell prism is used would you recommend to use one or two of them? 25?
RX calls for a prism OD 12BU
OS 12BD
If Fresnell prism is used would you recommend to use one or two of them? 25?
Use one 25 in the least dominate/worst va eye.
Fresnels will degrade contrast and VA's pretty noticeably above what...a 4 is it? Just bear in mind what the patient may feel they're seeing either way in a Fresnel that high vs. ground in.
The doctor should really determine that. If I had written that Rx, I would have written it the way I wanted it filled...12 in each eye, fresnel/no fresnel... I think you have no choice but to contact the prescriber and ask.
Patient does not want grind in prism because of the price and appearance. I am asking because I dont think I ever saw the Fresnel prism OU!?!?!?!?
Grind the prism, he'll love you for it
In that case, inform the pt that their insurance company exists only to make profit for themselves (which is true), that they choose to hire incompetent lab staff with no skill and almost no training (also true), and that they cannot in any way hope to create useable eyewear for them given their SRx.
Tell them the cost of having the glasses made properly from a competent lab. ANY competent lab. That is the black and the white of it really. We never like to figure out we've been duped by our insurance, but it is what it is.
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