Just wanted to pose this question to my esteemed colleagues-in-arms.
I had a patient that came in earlier this week asking for a progressive lens design and a light (~25%) yellow tint added. The patient's script is pretty straightforward:
-2.50 D.S. OU +2.50 Add
The first time when I did my final inspection when the job came in last week, both lenses seemed under-minused (I read about a -2.00 OU) and sent the order back for not passing ANSI standards. Today, the re-made lenses came back and the lenses are reading:
-2.25 -0.25 x071
-2.25 D.S.
The lens design that we ordered is NOT compensated. Our lab does good work and this a pretty unusual situation to come across, so before I call the lab manager about this, I was wondering if the yellow tint is affecting how I'm reading the rx through the focimeter (or lensmeter or vertometer, depending on your vernacular). Maybe I'm over-thinking this, but would the yellow tint, in its blue-blocking capability, be under-minusing the lenses since it's attenuating lower frequency visible light? Is that a stupid question?
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