Red Tinted Glasses for Light Sensitivity – NoIR N75, N90 & N98

What Are Good Red Tinted Glasses for Light Sensitivity and Glare?

If bright light and glare make it difficult to see comfortably, red tinted glasses for light sensitivity can provide a very different type of filtering than ordinary grey sunglasses. These discontinued NoIR N-Series glasses use specialized red and red-orange filters designed to reduce bothersome light and change the way certain colors and backgrounds appear.

This listing includes three NoIR lens choices: N75 Red-Orange, N90 Medium Red and N98 Light Red. All three use the same standalone N-Series frame, but the lens color and amount of visible light passing through the lenses are different.

FINAL SALE – $24.95: Originally $69.95. These discontinued NoIR N-Series glasses are available only while remaining inventory lasts. Once a lens option sells out, it will not be restocked. All sales are final.

Which Red Lens Should I Choose?

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Red-Orange – Filter 75 | 47% VLT

Choose Filter 75 if you want a warm red-orange view that combines contrast enhancement with glare reduction. NoIR developed this filter for people who benefit from stronger color filtering while still allowing nearly half of visible light through the lens.

• Best for: glare reduction, contrast enhancement and bothersome brightness
• Allows approximately 47% of visible light through
• Creates a noticeable red-orange view to help increase visual seperation.
• Helps increase visual separation between some objects and backgrounds
• Provides blue-blocking filtration
• Historically recommended by NoIR for glare and contrast needs associated with retinal conditions

What will it look like? Your surroundings will have a strong warm red-orange cast. The lens reduces overall brightness while emphasizing warmer colors and changing the appearance of blues and greens. It is a good choice for activities where glare makes details or backgrounds harder to distinguish. The red-orange lens provides moderate brightness reduction while enhancing contrast, making it useful for outdoor reading, walking, gardening, sightseeing, outdoor events and detailed visual tasks in brighter environments.

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Medium Red – Filter 90 | 45% VLT

Choose Filter 90 if you want a deeper red filter. Although its 45% VLT is very close to the N75’s 47%, the important difference is the lens color: N90 gives you a distinctly red view rather than red-orange.

• Best for: specialized red filtering and significant light sensitivity
• Allows approximately 45% of visible light through
• Creates a stronger red-colored view
• Filters much of the blue, green and yellow portion of the visible spectrum
• Historically designed by NoIR for people with achromatopsia and rod monochromacy
• May help reduce the visual blur caused by blue, green and yellow light for people with these specific vision conditions
• Not recommended for driving

What will it look like? The world will look noticeably red through this lens. Blues, greens and yellows will appear greatly changed or subdued, while the overall scene is moderately shaded. Filter 90 is a deeper red specialty filter designed for people who benefit from strong red filtering and reduced blue-green light. It may be useful for walking outdoors, gardening, sightseeing, reading, bright indoor spaces and other everyday activities where glare and light sensitivity make vision uncomfortable. It was historically recommended by NoIR for people with achromatopsia and rod monochromacy.

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Light Red – Filter 98 | 59% VLT

Choose Filter 98 if you want a red specialty filter without as much overall darkening. It allows 59% of visible light through, making it the lightest and most transparent-looking of these three choices.

• Best for: specialized red filtering when you prefer a lighter view
• Allows approximately 59% of visible light through
• Creates a lighter red-colored view than N90
• Allows more surrounding light through than either N75 or N90
• Historically designed by NoIR for people with achromatopsia and rod monochromacy
• Filters blue, green and yellow light differently to help reduce the visual blur associated with these conditions
• Not recommended for driving

What will it look like? Your surroundings will still look red, but the lens is more transparent and the overall scene will not appear as shaded as it does through the N75 or N90. Filter 98 is useful when you want the benefits of a red specialty filter while keeping the overall view lighter. Its 59% VLT lens can work well for walking, gardening, reading, shopping, crafts, bright indoor spaces and other everyday activities where light sensitivity or glare is uncomfortable. It is especially suited to people with achromatopsia or rod monochromacy who prefer a lighter red filter.

What Is the Difference Between N75, N90 and N98?

The easiest way to choose is to think about both color and how shaded you want the view to appear.

• N75 Red-Orange – 47% VLT: A warmer red-orange view with moderate brightness reduction and contrast enhancement.
• N90 Medium Red – 45% VLT: A deeper, distinctly red view with about the same overall brightness reduction as N75.
• N98 Light Red – 59% VLT: A lighter, more transparent red view that allows more surrounding light through.

N75 and N90 are similar in darkness, but they will not look the same when you look through them. N75 shifts your view toward red-orange, while N90 produces a stronger red color shift. N98 still gives you the specialized red filtering effect but keeps the overall scene lighter.

Why Would Someone Choose Red Tinted Glasses?

These red tinted glasses for light sensitivity may be considered when someone needs:

• Relief from uncomfortable brightness or glare
• Specialized filtering of blue-green light
• Greater visual contrast in certain environments
• A red filter recommended by a low-vision specialist
• Specialized filtering for achromatopsia or rod monochromacy

The best filter is highly individual. Someone who benefits from a red-orange filter may prefer N75, while someone who specifically needs a stronger red filter may prefer N90 or the lighter N98.

Are These Red Glasses for Achromatopsia?

N90 and N98 were specifically listed by NoIR for rod monochromats and achromats. Achromatopsia can cause severe sensitivity to light because the eyes do not adapt normally to brighter illumination. Red filters have historically been used to reduce the amount and types of light reaching the eyes for some people with this condition.

N75 has a somewhat different purpose. NoIR described the Red-Orange Filter 75 as providing contrast enhancement and glare relief and historically recommended it for people with retinal conditions.

Are These Fit-Over Glasses?

No. N75, N90 and N98 all use the same discontinued N-Series standalone frame. They are designed to be worn on their own rather than over prescription eyeglasses.

What Size Are These Glasses?

All three lens options use the same Medium N-Series frame.

• Inside Size: 136 × 52 mm — 5.35 × 2.04 in.
• Outside Size: 139 × 53 mm — 5.47 × 2.09 in.
• Temple Length: 135 mm — 5.31 in.
• Eye Size: 50 mm — 1.97 in.

Product Details

• Brand: NoIR
• Lens Choices: N75 Red-Orange, N90 Medium Red, N98 Light Red
• N75: Red-Orange — 47% VLT
• N90: Medium Red — 45% VLT
• N98: Light Red — 59% VLT
• UV Protection: 100%
• Fit: Standalone non-fit-over eyewear
• Frame: NoIR N-Series
• Frame Size: Medium
• Outside Dimensions: 139 × 53 mm — 5.47 × 2.09 in.
• Temple Length: 135 mm — 5.31 in.
• Availability: Discontinued — remaining inventory only
• Original Price: $69.95
• Sale Price: $24.95
• Sale Status: Final Sale

FINAL SALE – $24.95: Originally $69.95. These discontinued NoIR N-Series glasses are available only while supplies last. Once an option sells out, it will not return. All sales are final.