The Real Details of Vertex, Tilt and Wrap, Part Three of Three

By Barry Santini, ABOM
Monday, November 9, 2015 10:05 AM With many variables to sort through in investigating a vision complaint, anything that could help to reduce the pool of possible suspects should be welcomed with open arms.

The Real Details of Vertex, Tilt and Wrap, Part Two of Three

By Barry Santini, ABOM
Monday, November 2, 2015 10:05 AM

Ask just about any eye care professional when knowing the fitting vertex distance of a pair of glasses is important, and they'll no doubt respond: "For powers over 6 diopters, you'll have to compensate the power for the difference between the exam vertex distance and the wearing vertex distance."​

The Real Details of Vertex, Tilt and Wrap, Part One of Three

By Barry Santini, ABOM
Monday, October 26, 2015 10:00 AM For most of the last century, eyeglasses were fabricated using a binocular measurement for pupillary distance, and simply dividing it in half to center the lenses for each eye. This method delivered apparently great patient satisfaction, as visual complaints were not clearly traceable to the lack of using a "proper" monocular PD....even for segmented multifocals.

Why Are Tilt and Wrap Important?

By Staff
Monday, September 23, 2013 1:04 PM If you wear prescription glasses, you know that changing the tilt of the lens changes the effective power of the lenses—they "see" differently.

Position of Wear

By Darryl Meister, ABOM, Carl Zeiss Vision
Wednesday, May 1, 2013 2:50 PM POW or "position of wear" is a term that is used to describe the way that an eyeglass frame positions lenses in front of the eye.

Measuring Tilt and Wrap - An Easy Way

By Bob Hughbanks, ABOC, Expert Optics Inc. and Mark Mattison-Shupnick
Sunday, November 27, 2011 10:31 PM To measure tilt and wrap the easy way i.e., before you can afford a digital measuring system, practice this method with a colleague in your office.

Pantoscopic and Retroscopic Tilt

By Staff
Saturday, November 26, 2011 6:40 PM Pantoscopic: The lens bottom is rotated towards the cheeks.
Retroscopic: The lens bottom is rotated away from the cheeks.
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