Understanding The Limitation Of The “Grid Test “For Judging Lens Quality

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With the growth of the Optical Heritage Museum over the last 3 years (thanks to my company Zeiss who sponsors it), I have been fortunate to have the opportunity to study much of the content of our vast collection of Ophthalmic lens advertising materials. These date back to before the turn of the 20th Century. Our archives house a very unique library of materials; and one thing I have been struck with is the many parallels between how we market lens products then vs now.

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