Weird persistent glare in patient's lens

[Prentice Pro 9000]

Hi all,

I work at Mykita, and as you know, our lenses are grooved and a lot of the lens is exposed. I had a patient come in complaining about diffraction when she drives at night. Her lenses were polished and so we unpolished them, but it didn't help. I put her glasses on and held my cellphone's flashlight to the side of my face. I notice that there is a distinct purple-ish dot that stays pretty much in one place and is only in one lens.

Thoughts?

[Quince]

My first thought would be to remake that lens to see if it is just a defect. If it shows up again, then start looking at possible AR, material, or frame change.

Personally, I recommend BluTech for night driving for the most light sensitive people.

[Hayde]

This one popped into my head: http://www.optiboard.com/forums/showthread.php/65375

Got any pictures, Jaketull? Does it look anything like this spot on Quince's old lens?

[Prentice Pro 9000]

This one popped into my head: http://www.optiboard.com/forums/showthread.php/65375

Got any pictures, Jaketull? Does it look anything like this spot on Quince's old lens?

I wish. The patient has the frames

[Quince]

This one popped into my head: http://www.optiboard.com/forums/showthread.php/65375

Got any pictures, Jaketull? Does it look anything like this spot on Quince's old lens?

Good thinking!

I actually went to the link that Fester posted that I had found so helpful.

http://www.optiboard.com/forums/show...t-image-woooo?

Check out Harry's suggestions- post #7


The solution for my patient was adding AR (which he had not previously worn) and upping the base curve.

[Hayde]

Yeah, Uncle Fester's shiny head was on my brain as soon as I saw this thread...spent a couple of hours trying to dig through his threads when it turned out to be one of yours that he posted that link! (He has a much better memory for this stuff, or at least he makes it look easier....)

[Quince]

If it makes you feel any better- I had to reread my whole thread to even remember what had happened and how it got fixed! My memory sure is lacking...

[Hayde]

How did that one turn out? Was the problem resolved with a simple redo with no parameter changes? Or did you have to do something different? (Thought there was a slim chance it might be relevant since Jake referred to his blemish as a "dot.")