The Phoropter is the coolest Halloween masks of all time. 

The Binocular Looking Device Used By The Eye Doc Is A Phoropter. It Performs Multiple Eye Test Functions. Boulder Faces Of The Day: Eye Slits And Phoropters. “Is One Or Two Better?” Photo: Lenny “Lensworth” Frieling

Today’s Boulder Faces of the day is actually an eye doc tool face of the day, the phoropter!  Possibly made in Switzerland, it performs many eye test functions.  The eye docs have the coolest faces of the day. But what are they? Besides being the best Halloween Mask ever created. Can you tell which is better, “one or two?” I can generall

That machine is usually called a phoropter (sometimes “refractor” or “vision tester”). It’s the big binocular-looking device the eye doc swings in front of your face and clicks through while asking, “Which is better, one or two?” It contains lenses in about 0.25-diopter steps to refine your glasses prescription and can also measure astigmatism and binocular issues. 

Two close cousins you may also have met:

• Autorefractor — the machine you look into first, often with a little house or balloon image. It gives an automated starting estimate of your prescription before the doctor fine-tunes it. 

• Lensometer — measures the power of the glasses lenses you already own, not your eyes. 

The Phoropter, “Which Is Better, One Or Two?” Can You Always Tell? Photo: Lenny “Lensworth” Frieling

Lensworth translation:

• “Which is better, 1 or 2?” = phoropter

• “Look at the little house” = autorefractor

• “Let me check your old glasses” = lensometer

The phoropter really is one of the coolest machines in the office — very analog-meets-optics, with all those dials and clicks. If you want, I can also name the other coolest eye-doc machines you likely saw at your cataract/AMD workup. They can cost a mere $15,000 and I want one in the living room!

Shared Knowledge Is Power!

Lenny “Lensworth” Frieling

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Lenny Frieling Pen Of Justice

• Multi-published and widely syndicated blogger and author.
• Most recently published by Amazon, his first book, "Lensworth"a book of his prize-winning photos.
• University lectures at University of Colorado, Boulder, Denver University Law School, Univ. of New Mexico, Las Vegas NM, and many other schools at all levels. Numerous lectures for the NORML Legal Committee
• Former Judge
• Media work, including starring in episodes of Fox’s Power of Attorney, well in excess of many hundreds media interviews, appearances, articles, and podcasts, including co-hosting Time For Hemp for two years.
• Life Member, NORML Legal Committee, Distinguished Counsel Circle.
• Photographer of the Year, AboutBoulder 2023
• First Chair and Originator of the Colorado Bar Association’s Cannabis Law Committee, a National first.
• Previous Chair, Boulder Criminal Defense Bar (8 years)
• Twice chair Executive Counsel, Colorado Bar Association Criminal Law Section
• Life Member, Colorado Criminal Defense Bar
• Board Member Emeritus, Colorado NORML, and prior chair during legalization, as well as pre and post legalization
• Chair, Colorado NORML, 7 years including during the successful effort to legalize recreational pot in Colorado
• Senior Counsel Emeritus to the Boulder Law firm Dolan + Zimmerman LLP : (720)-610-0951
• Board member, Author, and Editor for Criminal Law Articles for the Colorado Lawyer, primary publication of the Colorado Bar Assoc. 7 Years, in addition to having 2 Colorado Lawyer cover photos, and numerous articles for the Colorado Lawyer monthly publication.
• http://www.Lfrieling.com