Enchroma Lens Basic Information
The following attributes apply to all lenses made and sold by Enchroma
|UV Protection||100% UVA/UVB/UVC|
|Lens Blank Diameter||72mm|
Enchroma Standard Lens Specifications
Enchroma provides the Standard Lens with general-use non-prescription eyewear, unless otherwise specified.
|Lens Material||Mid-Index Acrylic Monomer|
For more information about the lenses see the Lens Guide.
Dark Sunglass Lens
|VLT||14% (Filter Category 3)|
|Lens Color||Dark Gray|
Medium Sunglass Lens
|VLT||25% (Filter Category 2)|
|Lens Color||Medium Gray|
|VLT||65% (Filter Category 1)|
|Lens Color||Light Blue|
Enchroma Prescription & Safety Lens Specifications
|Single Vision Rx||SPH -4 to +3CYL -4 to +4 (recommended range)
PRISM to +8
Rx must include binocular or monocular PD.
Extended range jobs are evaluated on a case-by-case basis and subject to frame compatibility issues.
|Bifocal Rx||ADD +1 to +3, SEG HEIGHT 5-50mm
Bifocal type is a blended round 25mm.
|Progressive Rx||SPH -4 to +3CYL -4 to +4 ADD +3
Progressive design is IOT Alpha S45, a “soft+wide” free-form progressive design. Rx must include seg height. Monocular PD recommended.
EYE SAFETY, STANDARD LENS:
Enchroma provides the Standard Lens with general-use non-prescription eyewear, unless otherwise specified. These eyewear should not be used when direct impact to the eye is likely, such as in contact sports, shooting and industrial-safety eye protection.
The Enchroma Standard Lens is made of a UV-cured acrylic monomer. The lens contains added UV-absorbing dyes to ensure that it is 100% UVA/UVB/UVC absorbing. The lens is impact resistant but is NOT SHATTERPROOF.
EYE SAFETY, POLYCARBONATE SAFETY LENS:
Enchroma provides the Polycarbonate Safety Lens for pediatric (childrens’) frames, ASTM F803 sports-activity frames, and ANSI Z87.1 industrial safety frames. The Polycarbonate Safety Lens is provided in both non-prescription and prescription lens types.
The Enchroma Polycarbonate Safety Lens is made of polycarbonate, a material providing improved impact resistance, and is finished to 3mm minimum thickness. Polycarbonate lenses are naturally 100% UVA/UVB/UVC absorbing.
EYE SAFETY, PRESCRIPTION LENS (Rx):
The Enchroma prescription lens is made of polycarbonate, a material providing improved impact resistance compared to acrylic and glass lenses. However, the Prescription Lens is not certified for use in high-impact or industrial safety applications unless combined with an appropriate safety-rated frame. The Prescription Lens is available in Single-Vision, Progressive and Bifocal lens types. The prescription polycarbonate lenses are naturally 100% UVA/UVB/UVC absorbing.
FDA Compliance Statement Per 21 CFR 801.410(c):
Enchroma lenses are tested for impact resistance using the drop-ball test per 21 CFR 801.410(c). Lenses block 100% of UVA and UVB radiation. Enchroma, Inc. is a Registered Medical Device Manufacturer as defined and required per 21 CFR 801.410(c).
Specifications given are valid as of March 22nd, 2015. Specifications are subject to change.