Blog

Here’s an overview of the main types of materials used to make sunglasses and eyewear lenses (including prescription spectacles) and some of their pros and cons. Glass Glass will always provide the best optical experience as glass refracts light much more efficiently than plastic. It’s the most scratch resistant lens material and blocks UV light. However, glass lenses are heavy (typically sliding down your nose) and can be dangerous: glass lenses are prone to cracking, can sha …

One of the questions we are asked from time to time is what do sunglass lens categories mean. The category number equates to a percentage of the VLT (Visible Light Transmission) that is, how much light the lens lets through. The higher the VLT the lighter the lens, conversely the lower the VLT the darker the tint will be, blocking more light coming through to the eye VLT Category Lens Tint 80-100% 0 None or very light tint 43-80% 1 Light tint 18-43% 2 Medium tint 8-18% 3 Dark tint 3 …

Following the UK’s departure from the European Union, the UKCA (UK Conformity Assessed) marking is the new UK product marking used for goods being placed on the market in Great Britain (England, Wales and Scotland). It covers most goods which previously required the CE marking. The requirement for UKCA marking came into effect on 1 January 2021 but to allow businesses time to adjust to the new requirements, products made after this date can still use CE marking alone until 1 January 2023. …