A couple of months ago we asked about what our optical industry readers would like to see more of and one of the requests was to see a non biased progressive lens review and another was to see posts about lens technology and performance in layman’s terms.
As there are so many different progressive lens brands and designs available it is really impossible to review them all independently. Those lens plots can be extremely confusing and usually only specific to a certain power and add. However, there are independent resources to look for data and figure out progressive and free form lens comparisons as needed.
The Lens Guru is an independent source and lists all available progressive lenses and I particularly like the ability to compare different lens maps, it is really easy to use this site. The Lens Guru is not affiliated with any lens company and the database currently lists over 1900 PAL’s but is designed to be easy to use, so you can find the information you need quickly.
OptiBoard’s progressive lens discussion forum is a great resource and easy to find information by doing a search on your subject and following the thread. You do not have to be a member to look for information although you do need to register to post.
Totally Optical has really addressed the issue of technical lens information in layman’s via First Vision’s “Handbook of Free-Form 2010″ – the hard copy is mailing with the August issue of VCPN, but you can see the digital edition here NEED TO BETTER UNDERSTAND FREE-FORM LENS TECHNOLOGY? It covers all the basics and many of the free form lens providers.
Nearly all the lens vendors all have very good consumer literature available at no charge and written in layman’s terms. ICoat has several for coatings, Zeiss has downloadable consumer brochures , Shamir’s Vision 101 is very consumer friendly and good info. Not every optical customer wants a lot of technical information but it is good to have it available for the ones that do and your lens vendors are the best source.