Lens Options Guide
What each lens material, design, coating, and specialty option does, and the conditions each one is built for.
Polycarbonate Is The Most Common Safety Lens
Polycarbonate is the material most prescription safety lenses are made from. It is light, highly impact resistant, and absorbs UV without a separate coating. The Z87 rating belongs to the finished pair, which is tested and marked as a unit. Everything else on this page is a choice made on top of that.
Lens Materials
What the lens is made from. This sets the impact protection, weight, and how thin a strong prescription can be.
Polycarbonate
The material most prescription safety lenses are made from. It is lightweight and highly impact resistant, which is what allows a finished pair to pass the high-impact test.
Absorbs UV without a separate coating.
Best for: Everyday safety wear · High-impact tasks · Most roles
Trivex
A lightweight material with impact protection similar to polycarbonate, but with crisper optics and extra durability for rimless or drilled mountings.
Best for: Sharper optics · Rimless or drilled frames · All-day comfort
Hi-Index Material
Denser material that makes lenses thinner and lighter for stronger prescriptions, so high powers do not end up thick and heavy at the edges.
Best for: Strong prescriptions · Thinner, flatter lenses · Less weight
Lens Designs
How correction is arranged across the lens. Progressive Basic, Advanced, and Premium are good / better / best tiers of the same no-line design. Higher tiers widen the usable zones and reduce edge distortion.
Single Vision
One correction across the whole lens, for distance, intermediate, or near vision. The most common safety lens.
Best for: A single focus distance · Most roles · Simplest option
Bifocal
Two zones in one lens: distance up top with a visible segment below for close work.
Best for: Distance plus reading · Close inspection · Clear, defined segment
Progressive Basic
Entry-tier progressive: continuous distance-to-near vision with no visible line and comfortable everyday viewing zones.
Best for: No-line multifocal · Everyday wear · Distance + near in one
Progressive Advanced
Better-tier progressive with wider, smoother vision zones than Progressive Basic for easier focus across distances.
Best for: Wider viewing zones · Frequent focus changes · Smoother transitions
Progressive Premium
Best-tier progressive with the widest, most distortion-free zones for the most demanding all-day wear.
Best for: Widest clear zones · All-day multifocal · Most demanding visual work
Double Segment
A lens with near-vision segments both below and above the distance zone, for jobs that need close focus overhead as well as down low.
Best for: Overhead close work · Electricians and mechanics · Up-and-down tasks
Workspace Progressives
A progressive tuned for arm's-length and computer distances rather than far away, built for desks, benches, and screens.
Best for: Computer and bench work · Arm's-length focus · Indoor task zones
Coatings & Treatments
Surface layers applied to a finished lens. Each one changes how the lens handles light, moisture, or wear, and several can be combined on the same pair.
Extra Scratch Coating
A hard surface layer that helps lenses resist everyday scratches and abrasion, extending their usable life.
Best for: Dusty or gritty work · Tool-heavy environments · Longer lens life
Standard Anti-Reflective
Cuts reflections off the lens surface so more light reaches your eyes, with less glare from lights and screens and clearer night vision.
Is anti-reflective coating necessary?Best for: Indoor lighting and screens · Night driving · Reducing glare
Premium Anti-Reflective
Top-tier anti-reflective that adds water-, oil-, and dust-repellent layers, so lenses stay cleaner and wipe down more easily than standard AR.
Is anti-reflective coating necessary?Best for: Easy cleaning · Smudge resistance · Maximum clarity
Anti-Fog
A treatment that resists condensation, keeping lenses clear when you move between temperatures or wear a mask or respirator.
Why glasses fog and what helpsBest for: Temperature swings · Masks and respirators · Humid or cold work
Blue Light Filter
Filters a portion of high-energy blue light from screens and LED lighting to ease digital eye strain during long screen sessions.
Best for: Long screen time · Office and lab work · Reducing eye strain
Specialty Lenses
Light-management options for bright, outdoor, or changing conditions. These change how much light reaches the eye rather than how the prescription is arranged.
Tints
A solid color added to the lens to cut brightness and improve contrast, from light comfort tints up to full sunglass darkness.
Why UV protection matters on cloudy daysBest for: Bright or outdoor work · Glare comfort · Better contrast in sun
Transition Lenses
Photochromic lenses that automatically darken in sunlight and clear back up indoors, so one pair works inside and out.
Best for: Indoor/outdoor switching · Variable light · One pair for both
Polarized Lenses
A filter that blocks harsh horizontal glare bouncing off water, roads, and metal for sharper, more comfortable vision in bright reflective conditions.
Why UV protection matters on cloudy daysBest for: Glare off water or roads · Outdoor driving · Reflective surfaces
Polarized Transitions
Combines polarized glare control with photochromic darkening, adapting to changing light while cutting reflected glare outdoors.
Best for: Outdoor glare and changing light · Driving in variable sun · Best of both
Mirrored Lenses
A reflective mirror layer over a tint that reduces even more visible light and adds a finished look for very bright outdoor settings.
Best for: Very bright sun · Snow or water glare · Maximum light reduction
This page is a general reference. Descriptions explain how each option works and carry no performance claim about a particular product. Availability, and which options are appropriate for a given task, follow the prescription and the employer's hazard assessment.
Common Questions About Lens Options
They solve different problems. Polarized lenses filter horizontal glare bouncing off water, roads, and metal, and they stay the same darkness all the time. Transition lenses are photochromic: they darken in sunlight and clear up indoors, so one pair works in both places. Polarized transitions combine the two.
Photochromic lenses darken in response to sunlight. A windshield filters much of what triggers them, so transitions generally darken less inside a vehicle than they do outdoors. For driving glare specifically, a polarized lens is the option built for it.
A mirror layer sits over a tint and reflects additional visible light away from the lens, so less of it reaches the eye than the tint alone would allow. It is intended for very bright settings such as open sun, snow, and water.
Polycarbonate. It is lightweight and highly impact resistant, which is what allows a finished pair to pass the high-impact test, and it absorbs UV without a separate coating. The Z87 rating belongs to the finished pair rather than to the material. Trivex offers similar impact protection with crisper optics, and hi-index material makes stronger prescriptions thinner and lighter.
A bifocal has two zones divided by a visible line, with distance above and a segment for close work below. A progressive changes power gradually with no visible line, so distance, intermediate, and near vision run together. Progressives are sold in tiers, and higher tiers widen the usable zones and reduce edge distortion.
They are progressives tuned for arm's-length and computer distances rather than for far away, which suits desks, benches, and screens. A general-purpose progressive devotes more of the lens to distance vision, which is of less use at a workstation.
A lens carrying near-vision segments both above and below the distance zone, so close focus is available overhead as well as down low. It suits work that involves reading detail above head height, such as electrical and mechanical work.
Get Your Lenses Cut In San Diego
Bring a prescription, or a frame you already own, and a licensed optician takes the measurements in person.