Cocoons Slip Stream (LX) Onyx - Low Vision Fitover

The Cocoons Slip Stream (LX) Onyx - Low Vision Fitover is crafted to provide effective light-filtering for patients with low vision. Designed to fit over larger prescription glasses, these fitovers offer reliable glare reduction and improved visual comfort in a range of lighting conditions.

Frame Size:
Fits over prescription glasses measuring up to 144mm (5 11/16 inches) in width and 46mm (1 13/16 inches) in height.

Note: The images shown are stock photos with standard lenses. Please select the appropriate lens tint from the color menu. These are built-to-order in our lab and may take up to 14 days to ship.

Lens Color Options
Lenses are available in twelve color options including:

• 450
• 450X
• 450XG
• 511
• 511X
• 527
• 527X
• 550
• 550XD
• GLC (CPF Glare Cutter Simulation)
• Plum #81
• Plum #88

*Side shields have a standard grey tint

Please see the color chart image for an approximation of the tint color for each option. (While this chart is helpful for determining the general shade family of each color, it is not meant to replicate or replace the in-office tint-testing experience.)

If you want a deeper dive into each color, including its spectrophotometry chart, light transmittance, and color simulations, click here to view low vision tint information (you'll be taken to our main site).

Need a custom low vision tint for your patient?

Chadwick Optical is an optical lab that specializes in precision tinting and difficult RXs. Click here to visit the main Chadwick Optical website.

Prefer your tint in a clip-on?

Flip-up clip-ons are now available for those suffering from low vision. No more guessing - download our clip shape guide to find your perfect fit. Browse low vision clip-ons here.