The patient has a pair of glasses with the exact same frame and almost identical Rx that does not exhibit the problem (the patient is not willing to give them up to compare them to the current pair). If I tilt the frame side-to-side (either wearing it or looking at it while holding it in front of me) the line moves with the frame/lens (stays parallel to the B measurement) until I've tipped the frame about 45 degrees when the line disappears.ĬR-30 Polarized grey Comfort lenses. Panto helps (too much panto to adjust the frame that way). If I hold my hand out in front of me between the glasses and the sun, the line goes away. I looked through the glasses with a baseball cap on to help block the sun from the top of the frame/lenses and that didn't eliminate the line. It's obviously a reflection/refraction of some sort but I can't figure it out.

The right lens still has a bright vertical line. The left lens was line-free (very faint, only noticable if you look for it). Before the lenses were edged, I took the unuts outside to see if they had the same blue line. I had an antireflective coating added to the lenses and that didn't help.įinally, I completely remade the lenses (with AR) on the off chance that there was a defect in the polarization and/or lamination. I eliminated lens edge reflections and reflections from the frame as possible causes. Sure enough, when I look through them towards the sun, there is a BRIGHT bluish/purple line running vertically through the approximate middle of each lens. Thinking there was a possible reflection off the lens edge or the frame I had the account send me the glasses.

The patient was complaining of vertical blue 'lines' in the lenses when looking at the sun (meaning towards the sun, not at the sun of course). I work in a wholesale lab and one of our accounts contacted me about a patient of theirs who had a problem with a pair of polarized sunglasses we recently made. I have a problem I haven't encountered before and I'm stuck.

Glasses have blue reflection