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We’re not a warehouse or box store where you have to choose your glasses from a limited, mass produced selection. When you come to Mountain West Optical, you have a say in every aspect of your new glasses. We craft your lenses right in our facility, so you won’t have to wait extra time for shipping. Below are some of the options you’ll have:

Lens Materials


Composite lenses incorporate polycarbonate, Trivex®, and other ophthalmic materials to produce a thin durable lens. They are extremely lightweight, hold up to abrasives, block UVA and UVB rays, and are compatible to most protective treatments (no-glare, scratch resistant, etc.).

Plastic Lenses

There are three grades of plastic lenses: standard, mid-index, and high-index. They are all more lightweight, durable, and impact resistant than glass. Mid and High Index are great options for stronger prescriptions, without adding unnecessary weight.


Polycarbonate is thinner and lighter than standard plastic, while also being more durable. Polycarbonate lenses are also practically unbreakable, making them an optimal choice for children and active adults.

Lens Treatments

These are optional coatings that can be added to your lenses to address specific concerns.


Anti-reflective treatments block reflective light to reduce glare. They also offer UV protection and have a protective layer that is spot resistant and easier to clean than regular lenses.


Photochromic lenses are clear in indoor lighting, but darken when hit by bright light, shielding your eyes from UV damage.


Scratch-resistant treatments prevent scuffs from being dropped or cleaned and stored improperly. This is especially convenient for children’s glasses, and can greatly extend the life of a pair of lenses.

Lens Function

Single Vision

Single Vision lenses are designed to correct near or farsightedness, but not both at the same time. Prescriptions for Reading, Driving, and Correcting Astigmatism are often single-vision.


Bifocals contain two prescriptions in the same frame, improving vision for both near and far. A thin visible line divides the prescriptions.


Trifocals are divided into three sections, improving vision for close, far away, and a middle distance, which is about arm’s length.


Progressive lenses use advanced technology to allow wearers to see at different distances, without a noticeable seam in the lens or jump in vision.

Activity-specific Lenses


Staring at a computer for long periods of time can strain your vision and cause headaches. Computer glasses use magnification, anti-reflection, and blue light filters to ease the strain on your eyes.


If you need to wear glasses while playing sports, it is important that your lenses can withstand the amount of impact they will endure. Outdoor sports also mean exposure to UV Rays, so a UV treatment will add extra protection. We can also make lenses for specific activities such as scuba diving, golf, and snow sports.


Safety Eyewear is protection for the eyes. Safety lenses protect the eyes from harmful outside environmental dangers such as UV light, radiation, impact , and chemicals or gas and fumes or flying debris. Environments that usually require protection for the eyes are chemistry laboratories, woodworking, welding, grinding and auto repair, etc. Safety Eyewear needs to meet or exceed ANSI Z87.1 impact tests and be marked such.


Ballistic Eyewear is designed to exceed the impact resistance standard of normal safety glasses. This is called a plus rated safety of ballistic. Ballistic eyewear is approximately four times more durable when it comes to projectile impacts. U.S. military standard requires that ballistic eyewear must be able to withstand up to a .15 caliber (at 640 ft/sec) for spectacles and .22 caliber at 550-560 ft/sec for goggles. Ballistic eyewear is recommended for police, firefighters, the sportsman and recreational or competitive shooters, and industry that will project objects at a high velocity.


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