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NoIR Filter 20 gray fit-over glasses are a good choice for people who want glare reduction with a relatively light lens. With 63% VLT, these lenses allow about 63% of visible light through, so they reduce brightness without creating the very dark view of lower-VLT sunglasses.
NoIR specifically lists Filter 20 for cataract-related light sensitivity and low-vision glare.
VLT stands for Visible Light Transmittance. A 63% VLT lens allows approximately 63% of visible light to pass through.
That makes Filter 20 a relatively light gray lens. It can be useful when you need some glare reduction but still want plenty of available light for seeing details.
Filter 20 may be useful for people who experience:
The neutral gray tint reduces overall brightness without the stronger color shift associated with yellow, orange, red, or plum specialty filters.
Yes. The Standard Fit-Over Frame 51, Frame 53 and Frame 53X are specifically designed to fit comfortably over prescription eyewear, although they can also be worn alone.
You can choose from several sizes and two frame styles, so you do not have to select a size and frame separately.
Choose the Removable Top Shield style if you want the additional removable upper shield. It is available in Small, Medium, Large and XL.
Choose the Standard Fit-Over style for a traditional fit-over design with soft temples and additional side coverage. It is available in Medium, Large and XL.
| Size | Frame Width | Frame Height | Temple Length |
|---|---|---|---|
| Small | 133 mm / 5.24″ | 44 mm / 1.73″ | 140 mm / 5.51″ |
| Medium | 142 mm / 5.59″ | 44 mm / 1.73″ | 140 mm / 5.51″ |
| Large | 143 mm / 5.63″ | 46 mm / 1.81″ | 140 mm / 5.51″ |
| XL | 148 mm / 5.83″ | 49 mm / 1.93″ | 144 mm / 5.67″ |
| Size | Frame Width | Frame Height | Temple Length |
|---|---|---|---|
| Medium | 140 mm / 5.51″ | 43 mm / 1.69″ | 156 mm / 6.14″ |
| Large | 146 mm / 5.75″ | 44 mm / 1.73″ | 156 mm / 6.14″ |
| XL | 159 mm / 6.26″ | 52 mm / 2.05″ | 140 mm / 5.51″ |
Tip: Measure the outside width and height of the eyeglasses you plan to wear underneath and choose a fit-over that is larger than those measurements.
No. Filter 20 is considerably lighter than many traditional sunglasses.
Because 63% of visible light passes through, these are better suited to someone looking for moderate glare control rather than a very dark sun lens.
Filter 20 is gray. Gray lenses reduce overall visible brightness while keeping colors relatively natural, making them a good option for shoppers who do not want the pronounced color changes created by specialty colored filters.
$69.95
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