Glass Lenses

Glass prescription lenses still offer the best visual acuity of any eyeglass lens, as they have for hundreds of years.  Glass lenses have less impurities in the material compared to plastic lenses, and so they are optically clearer and easier to see through.  However, over 95% of prescription lenses nowadays are made from some kind of plastic because using glass lenses has some restrictions and drawbacks.  No lens material is more clear, clean, or better functioning that a eyeglass lenses made from glass.  Also, because glass is a much harder material than plastic, glass lenses do not scratch as easily as plastic lenses, even if they have scratch resistant coating. 

Now, here comes the bad news:  Glass lenses are almost twice as heavy as plastic lenses, more expensive, and not as safe as plastic lenses. Glass lenses can only fit into eyeglass frames with a  "B" measurement (vertical height) of at least 28mm, and glass lenses cannot be installed in rimless or semi rimless frames.  Glass lenses take much longer than plastic lenses.  You should allow two to three weeks for processing an order with glass lenses.  Two weeks is the average processing time because every pair of glass lenses is “drop ball” tested before it leaves the lab.  Occasionally, the lenses will fail the drop ball test, and they need to be discarded and started again.  This could lead to additional delays.

Progressive (No Line)

Crystal Vision Glass Progressive
$219
Glass lenses have better optics and better scratch resistance compared to plastic lenses. ALLOW 2-3 WEEKS FOR PROCESSING GLASS LENSES.There are no warranties available on glass lenses. Read More Crystal Vision glass progressive lenses have all the advantages of glass lenses, which includes better anti-scratch properties and superior visual acuity.  However, glass lenses are heavier and take longer - you should allow 2-4 weeks for processing of any glass lens.  We recommend the high index glass lenses for prescriptions over +/-3.00 sphere.  This lens is available in the following range: -6.00 to +4.00 sphere, -4.00 to +3.00 cylinder, and up to +3.00 add (prism and slab off excluded).
Crystal Vision Glass High Index Progressive
$245
Specialty high index progressive glass lens for prescriptions over +/-3.00. Glass lenses have much better optics than plastic lenses. PLEASE ALLOW 2-3 WEEKS FOR PROCESSING GLASS LENSES. There are no warranties available on glass lenses. Read More High Index glass progressive lenses have all the advantages of glass lenses, which includes better anti-scratch properties and superior visual acuity.  However, glass lenses are heavier and take longer - you should allow 2-4 weeks for processing of any glass lens.  We recommend the high index glass lenses for prescriptions over +/-3.00 sphere.  This lens is available in the following range: -6.00 to +4.00 sphere, -4.00 to +3.00 cylinder, and up to +3.00 add (prism and slab off excluded).
Zeiss Glass High Index Progressive
$295
Zeiss is the world's pre-eminent brand of precision optics. Are you looking for the best quality glass lenses? The Zeiss Glass progressive lens is a great choice for corrections up to +/-10.00. ALLOW 2-3 WEEKS FOR PROCESSING GLASS LENSES. Read More Zeiss the world’s pre-eminent brand of precision optics.  Founded by Carl Zeiss in 1846, the company has a long history of optical innovation, excellence, and precision workmanship.  Zeiss eyeglass lenses are no exception, being the finest eyewear lenses available on the planet. The Zeiss glass lens is a good choice for corrections up to +/-10.00, and it is available with a variety of options such as  Anti-Reflective coating, and the top-quality Zeiss Duracoat No-Glare coatings.  If you are looking for the best, look no further than Zeiss.  

Bifocal (With Line)

Crystal Vision Glass Bifocal
$159
Glass lenses have much better optics than plastic lenses, and have much better scratch resistance.PLEASE ALLOW 2-3 WEEKS FOR PROCESSING GLASS LENSES. There are no warranties available on glass lenses.There are no warranties available on glass lenses. Read More Bifocal lenses made with the glass lenses material for bi-focal vision distance viewing means that the reading area has a half moon shape with a "flat top", in the bottow area of the lens.  The standard glass, flat top 28 bifocal has a reading area that is 28mm wide at the top.  This is a good choice for prescriptions up to +/-3.00 sphere; above that, we would recommend a higher index lens in order to reduce the thickness and weight of the lens.  This lens is available in the following range: -5.00 to +3.00 sphere, -4.00 to +3.00 cylinder, and up to +3.00 add (prism and slab off excluded).  Crystal Vision Lenses are top quality lenses at a reasonable price point, and come with our Perfect Lenses Guarantee.  
Crystal Vision Glass Bifocal High Index
$189
Glass lenses have much better optics than plastic lenses, and have much better scratch resistance.PLEASE ALLOW 2-3 WEEKS FOR PROCESSING GLASS LENSES.There are no warranties available on glass lenses. Read More Bifocal lenses made with the glass lenses material for bi-focal vision distance viewing means that the reading area has a half moon shape with a "flat top", in the bottow area of the lens.  The standard glass, flat top 28 bifocal has a reading area that is 28mm wide at the top.    Crystal Vision Lenses are top quality lenses at a reasonable price point, and come with our Perfect Lenses Guarantee.

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