Extrovert (Votes: 8)
Introvert (Votes: 23)
The pd light and meter that I have is at least 60 years old. It was made by precision cosmet but if my memory holds if was patented by House of Vision a retail optical chain.
Robert, I heard about "the Grolman" in school about 1987 and it was obsolete even then! You're talking something that's probably 45 years old! In essence, you have a corneal reflex pupillometer...
The Light D was TOO good, IMHO.
Interesting. I will take that on board. It makes sense when they are choosing the Individual. But if they are on more on a budget and end up choosing the "Pure" or the "Plus" designs. Those are...
Here's the actual light that came with it. Made by a Minneapolis Co. Precision-Cosmet. https://americanhistory.si.edu/collections/search/object/SILNMAHTL_37149 I had fun using it on kids after...
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The pd light and meter that I have is at least 60...
The pd light and meter that I have is at least 60 years old. It was made by precision cosmet but if my memory holds if was patented by House of Vision a retail optical chain.
Lensman11 03-23-2023, 10:12 AM