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NoIR Filter 22 post cataract surgery sunglasses use a dark gray 11% VLT lens for people who need much stronger light reduction than a medium-gray sunglass lens. Only about 11% of visible light passes through, making Filter 22 best suited to bright outdoor conditions and stronger glare rather than everyday indoor or low-light use.
Post-cataract needs are only one reason someone might choose this filter. These glasses are also helpful for glaucoma, diabetic retinopathy, corneal conditions and troublesome glare, so they can be a useful option for shoppers who simply know that ordinary sunglasses are not reducing bright light enough.
They can be. Some people remain particularly bothered by sunlight and glare after cataract surgery, and Filter 22 is specifically intended for post-cataract light sensitivity. Its 11% VLT makes it considerably darker than a typical lightly tinted sunglass lens.
That does not mean everyone after cataract surgery needs a lens this dark. If normal sunglasses are comfortable, a lighter filter may be a better choice. Filter 22 makes more sense when bright daylight or reflected glare still feels too intense.
No. That would make this lens sound much more limited than it is.
Filter 22 may also be considered by people dealing with glaucoma, diabetic retinopathy, corneal problems or significant glare sensitivity. The common reason for choosing it is the need for substantial brightness reduction from a neutral gray lens.
Filter 22 has 11% VLT, meaning approximately 11% of visible light comes through and about 89% is reduced.
This places it firmly in the dark sunglass range. Because the lens is gray rather than amber, orange or another specialty color, it reduces overall brightness while keeping colors more neutral.
This lens makes the most sense in bright daylight, strong sun and situations with substantial reflected glare. Think sunny sidewalks, bright open areas, water or pavement glare, outdoor sporting events and other environments where a medium tint still feels too bright.
It is not a good choice for indoors, dusk, cloudy low-light conditions or nighttime use because only 11% of visible light passes through.
For a shopper who does use them while driving, they would only make sense in bright daytime conditions. They should not be worn for night driving, dusk or poor-visibility conditions. Anyone with cataracts, glaucoma, diabetic retinopathy or another condition affecting vision should also follow their eye-care professional’s guidance about whether they are safe to drive.
Yes. The fit-over options are designed to sit over corrective eyewear, so you do not have to remove your regular glasses to use the Filter 22 lens. Some frame styles also provide additional side coverage, which can be useful when light enters from around the edges.
For the frame choices in this listing, use the outside width × height as a quick comparison:
Removable Top Shield: Small 133 × 44 mm / 5.24 × 1.73 in · Medium 142 × 44 mm / 5.59 × 1.73 in · Large 143 × 46 mm / 5.63 × 1.81 in · XL 148 × 49 mm / 5.83 × 1.93 in.
Standard Fit-Over: Medium 140 × 43 mm / 5.51 × 1.69 in · Large 146 × 44 mm / 5.75 × 1.73 in · XL 159 × 52 mm / 6.26 × 2.05 in.
Universal Frame 700: 144 × 43 mm / 5.67 × 1.69 in.
If you are wearing these over prescription glasses, compare the measurements with the outside dimensions of your eyeglass frame, not just your face size.
Yes. Filter 21 allows about 28% of visible light through, while Filter 22 allows only 11%. Filter 22 is therefore the better choice when a medium gray lens still does not provide enough light reduction.
Lens: Dark Gray
Visible Light Transmission: 11% VLT
Best suited for: Bright outdoor light and stronger glare
Relevant needs: Post-cataract, glaucoma, diabetic retinopathy, corneal conditions and glare sensitivity
Prescription glasses: Multiple fit-over options available
Night driving: No
$69.95



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