Filter Number: 81
Lens Colour: Plum
Visible Light Transmission: 19%
Protection: Ultraviolet

Recommendations:

Corneal Pathology
Diabetic Retinopathy
Glaucoma
Photophobia
Headaches & Brain Trauma
Achromatopsia

Each filter colour has a Visible Light Transmission (VLT) figure, which indicates the percentage of light passing through the filter. A low value will block more light from entering the eye; a high value allows more light into the eye. You should avoid a VLT% that is too dark for your needs for safety reasons.

The plum filter offers a soothing colour and has the potential to improve visual acuity and reduce glare.

The economic plastic frame comes in two sizes, medium and large. Medium is suitable for the average adult.

Please note: Frame images are shown in greyscale, please refer to the colour swatch above as a guide to the tint of these filters.