Glasses Buying Guide


Learning Center

Welcome to the Learning Center of the Eyeglasses.com website. Browse the links to the left, where you will find a whole world of information, all related to eyeglasses, glasses, eyewear, sunglasses, and your vision. This is a glasses buying guide, where we give you a vast amount of information so that you can make an educated and informed choice about the perfect eyewear for your needs. With our Glasses Buying Guide you can learn how to buy eye glasses frames, eyeglass lenses, and prescription glasses. You can also use our Eye-Doctor Directory to find a vision professional in your area. We even have a section dedicated to Celebrity Eyewear, and general eyewear fashion news.

This Learning Center and the Glasses Buying Guide is designed like a blog, so if you would like to ask questions, make comments, or improve it for the benefit of others, please make a comment.  You can navigate the pages in this section using the links to the left.

Comments

Teresa

Teresa wrote on 10/21/09 2:49 AM

My polycarbonate lenses have feathering cracks in them after two weeks of wear. The cracks are on the outer sides going inward, near where the frame hinges are. What would cause this? They are kept in a case when they are not on me. I use only eyeglass cleaner. This has happened twice now on each lens.
Mark Agnew

Mark Agnew wrote on 10/21/09 8:23 PM

The likely cause for this is too much pressure on the lens depending on the type of frame you have. If it is a rimless frame, then this is in the drill and attachment. If it is a full frame the lens may be under cut causing these cracks to appear. If you had used a High Index 1.60 lens this likely would not have happened. If installed properly this cracking should not occur (barring strange circumstances of prescription and frame type combinations). For rimless frames, we know that polycarbonate does begin cracking after 1-2 years, and so we always recommend high index or Trivex lens.
Joe Altschule

Joe Altschule wrote on 11/04/09 2:06 PM

I am looking for round frames and saw a pair with what was described as a "saddle" bridge. In the picture it looks uncomfortable. Can you elaborate on this type of bridge> Thank you
Mark Agnew

Mark Agnew wrote on 11/04/09 10:29 PM

The saddle bridge sits on the top of your nose. Most eyeglasses have two nosepads that rest on the sides of your nose. Some people like the saddle bridge, some don't. If it is a small light frame with plastic lenses, the saddle bridge can be more comfortable than nosepads, and it has a sleeker design. However, nosepads can be adjusted to help position the lenses up or down on your face, which is very helpful for high prescriptions and bifocal or progressive lenses.

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