People with glaucoma often experience both a general sensitivity to bright light and a heightened sensitivity to glare — the harsh burst from headlights at night, sunlight off pavement, or the wash of a bright screen. On top of that, many find their eyes are slow to recover afterward, or that they struggle to adjust when moving between bright and dim spaces.

What helps is not simply blocking more light, but filtering the specific light that causes the trouble.

TheraSpecs is the leading brand of precision-tinted glasses for light sensitivity, with lenses designed to filter the specific wavelengths most likely to cause this discomfort and to cut the glare that makes bright environments so hard to tolerate. Because glare is such a challenge, every pair also includes anti-reflective coatings and 100% UVA/UVB protection, adding another layer of protection against the bright and reflective light that sensitive eyes react to most.

The best tint depends on where the difficulty happens most and how strong the sensitivity is. Rather than a single color being the answer, what matters is filtering the specific wavelengths that cause discomfort, which is why a targeted, precision tint does more than a generic colored lens.

For indoor artificial light from screens, fluorescents, and LEDs, TheraSpecs FL-Pro and FL-Blend use the FL-41 tint to filter the wavelengths most associated with light sensitivity, with FL-Pro offering the strongest filtering and FL-Blend trading some of that for more natural color perception. For bright outdoor light and reflected glare, FL-Sun brings that same filtering to a dark, polarized lens. And Flex, the most subtle tint, is a lighter everyday option for screens and indoor wear that also stays light enough for night driving.

Each of these also comes in multiple strengths. The TheraSpecs lens assistant can help narrow down both the lens and the strength based on the environments where glare and discomfort happen most.

For daytime outdoor glare, polarization makes a real difference. A lot of the harshest glare in bright conditions comes from sunlight reflecting off flat surfaces like pavement, water, car hoods, snow. Polarization filters out that reflected light, which cuts the blinding glare, sharpens contrast, and makes bright settings easier on sensitive eyes. This is why FL-Sun, the polarized lens in the TheraSpecs catalog, is built for bright outdoor light and the glare that comes with it.

Worth knowing: polarization is a daytime tool. It does little for the headlight glare that makes night driving difficult, and no dark sunglasses lens is suited for driving after dark. For low-light and nighttime driving, a much lighter lens like Flex is the better option.

Indoors, polarization isn't needed either, since there's no direct sunlight bouncing off surfaces. For screens and overhead lighting, a precision-tinted lens like FL-Pro or FL-Blend filters the problematic wavelengths, and every TheraSpecs lens includes an anti-reflective coating that helps with indoor glare too.

Yes, for low-light and nighttime conditions, Flex is the lens made for the job. It is TheraSpecs' most subtle tint, light enough to be worn while driving at night, with an anti-reflective coating that helps cut the reflections and scatter that make headlights and streetlights harder to tolerate.

The key thing to know is that dark sunglasses are not the answer; no dark tint is suited for driving after dark, since it reduces too much light to drive safely.

Difficulty adjusting between bright and dim spaces is a common and specific challenge with glaucoma. Because the condition affects how the eye processes light, the eyes can be slower to adapt when light levels change suddenly, like stepping into bright sun or walking into a dim room.

TheraSpecs precision-tinted glasses can't change how the eyes adapt, but they can soften the extremes that make these transitions so jarring. By filtering the harshest wavelengths and cutting overall intensity, TheraSpecs take the edge off the bright end of the shift, so moving into a brightly lit or sunny space feels less abrupt. Lighter options like Flex are easy to keep on across changing conditions, while FL-Sun handles the brightest outdoor transitions.

Yes. Screens, fluorescents, and LEDs are common sources of sensitivity for people with glaucoma, in part because the eyes can be slower to recover from the blue light these artificial sources emit.

TheraSpecs FL-Pro and FL-Blend are the strongest options for filtering the artificial light from screens, fluorescents, and LEDs, while Flex takes the edge off with a more subtle tint—a better fit for milder sensitivity or dimmer spaces where a darker lens would get in the way. And because glare indoors often comes from reflections off screens and overhead lighting, every TheraSpecs lens includes an anti-reflective coating that helps reduce it.

Yes. Light sensitivity is well documented in glaucoma, affecting an estimated 15% to as much as 50% of people with the condition, and researchers have studied how and why bright light and glare are so difficult. Studies have connected the condition to heightened glare sensitivity, slower recovery after exposure to blue light, and greater difficulty adapting between bright and dim environments.

The TheraSpecs team reviewed this body of published, peer-reviewed research to develop a catalog of lenses that are precision-tinted to filter the wavelengths most associated with discomfort and to reduce the glare that makes bright environments hardest on sensitive eyes.

See a full list of research references here.

Yes, both. TheraSpecs offers several options for people who already wear prescription glasses or readers. WearOver fitover styles are designed to be worn comfortably over existing frames, while any TheraSpecs lens can also be made with a custom prescription or reader magnification. And with the Send in Your Own Frame option, TheraSpecs lenses can be fitted into a pair of frames you already own.