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Eyeglass Lenses

In the past few years, we have seen increasingly accelerated revolutionary advances in ophthalmic lens technology. This means better vision, comfort, convenience, and safety for our patients. Lens materials have become lighter, thinner, stronger, less likely to scratch, clearer with less reflection, and cosmetically more appealing.


The best news is: you haven't seen anything yet! Within the past several months, we have already witnessed the ability to custom design both single vision and progressive bifocal lenses for an individual patient. We now have computer driven lens surfacing technology which can design the periphery of a lens on a point-by-point basis and custom surface the lens on both the front and back surface. These are the first lenses which integrate how your own frame, face, and prescription work together.

 

 

 


Key Benefits:

 

 

  • Clearer Vision
  • Unlimited Frame Choices
  • Wider Viewing Zones
  • Lighter Weight
  • Thinner Lenses
  • Less Reflections and Distortion

 

 

 


Lens Materials:

Material
Index of Refraction
% Thinner than Plastic
Properties
Glass
1.52
-----
Very Heavy and Breakable!
Plastic
1.5
-----
Needs scratch coat & UV.
Thickest lenses (also called CR39).
Trivex
1.53
up to 30%
Polycarbonate with less distortion (optically purer)
1.54 High Index
1.54
up to 30%
Lowest High Index Plastic
Polycarbonate
1.59
up to 35%
100% UV & scratch coat,
best impact resistance.
Required for children
Polycarb. Thin
1.59
up to 45%
1.0 mm center thickness
1.60 High Index
1.60
up to 45%
About same thickness
1.67 High Index
1.67
up to 55%
Higher Index (thinner)
1.71 High Index
1.71
up to 60%
Super High Index
1.74 High Index
1.74
up to 65%
Ultra High Index

 

 

 

 

 

 


Lens Types:

Type
Specifications
Our Common Brands
Single Vision (SV)
Standard single vision, used for patients who do not need a bifocal, or for "distance only", "reading only", or "computer only" glasses.
Carl Zeiss, Essilor
SV Aspheric
Aspheric lens design eliminates or reduces peripheral distortion, spherical abberations, and marginal astigmatism. Used for higher prescriptions to eliminate "pincushion" or "barrel" curvature distortions. Makes straight surfaces and lines look straight.
See Photos to the Right->
Carl Zeiss, Essilor
SV Custom
Also called "High Definition" lenses. Similar to HDTV, these lenses allow more "pixels" or larger viewing areas of clear optics by custom surfacing both the front and back surfaces of the lens on a point by point basis. This takes into consideration your prescription, frame size and shape, and pupillary position to allow the sharpest vision possible.
Zeiss Individual
D-Seg Bifocal
Two lenses in one. Most commonly, your distance vision is on the top and your reading or near vision is located in the bottom of the lens.
Carl Zeiss, Essilor
D-Seg Trifocal
Three lenses in one. Most commonly used for patients over age 50 when not wearing a progressive bifocal to allow intermediate range vision (18" to 36") as well as distance and near or reading.
Carl Zeiss, Essilor
Progressive Bifocals
Also known as a "No Line" bifocal, a progressive is the most commonly used bifocal type today. Allows full range of vision: distance, intermediate, and near with a seamless transition between all ranges. Our newest progressive designs eliminate most of the distortions and open up the reading area compared to other commonly sold progressives.
Zeiss GT2, Varilux Physio
Custom Progressive Bifocals
The newest technological innovation in lens design allows us to create a front and back surface of a lens which is as individual as you are! These lenses are custom made using computerized surfacing to all but eliminate any peripheral distortions and to allow the largest reading and intermediate areas of clear vision possible in a bifocal.
Simply the best!
Zeiss Individual, Varilux Physio 360

 

 

Zeiss Individual Play Button

Click to watch a video about this amazing new Custom Progressive Bifocal by Zeiss made specifically for you!

 

 

 

 

 

 

 

 

 

 

 

 

 

Links to Lens Demonstrations:

Click Here for:

InterActive Demonstrations
of Various Eyeglass Lenses

(then click on "Interactive Vision Demos" on left side of page)

 

 

 

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