Sunglasses and transition lenses can both reduce visible brightness, but they work differently. Choosing between them depends on how and where you plan to wear the eyewear.
What are sunglasses?
Sunglasses use a fixed lens tint. The colour and darkness of the lens remain broadly the same as you move between different lighting conditions.
You can browse current styles in the Belvoir&Co Morocco Sunglasses collection.
What are transition lenses?
Transition lenses, often called photochromic lenses, change tint according to light and UV conditions. They can appear lighter in lower-UV environments and darker in stronger outdoor conditions.
Explore current models in the Transition Lenses collection.
Transition lenses vs sunglasses
Fixed tint vs changing tint
Sunglasses use a fixed tint, while transition lenses adapt their tint. This is the biggest practical difference between the two.
Indoor and outdoor use
Transition lenses can be useful when moving between different lighting conditions because the tint changes. Sunglasses are more straightforward when you want a consistent tinted lens outdoors.
Behind glass and in vehicles
Photochromic behaviour can vary behind windows or vehicle glass because the amount of UV reaching the lens may be reduced. The exact response depends on the lens technology, so check the product specification rather than assuming every transition lens behaves the same way.
Style and colour
Sunglasses are available in many fixed colours and mirrored finishes. Transition models can also come in different frame and lens combinations, but the changing tint is the defining feature.
Which option should you choose?
Choose sunglasses if you want a consistent outdoor tint and a specific lens colour as part of the look. Choose transition lenses if you prefer a lens that changes tint as lighting conditions change.
If you mainly care about screen-related blue-light filtering, browse the Anti-Blue collection instead.
Eyewear in Morocco
Belvoir&Co Morocco offers sunglasses, rimless eyewear, anti-blue models and transition-lens styles. Prices are displayed in Moroccan dirhams (MAD), online payment is by bank card, and delivery is available within Morocco only.
Verres photochromiques ou lunettes de soleil au Maroc ?
Les verres photochromiques, parfois appelés verres à teinte variable, réagissent à certaines conditions lumineuses et à l'exposition aux UV. Les lunettes de soleil possèdent quant à elles une teinte fixe. Le choix dépend de votre utilisation, des caractéristiques des verres et de votre préférence esthétique.
Pour une couleur de verres constante, explorez nos lunettes de soleil au Maroc. Si vous privilégiez une teinte qui évolue selon les conditions d'exposition, comparez les modèles de notre collection Transition Lenses. Les performances exactes peuvent varier d'un modèle à l'autre, notamment derrière certaines vitres.
Quick answers
Are transition lenses the same as sunglasses?
No. Sunglasses have a fixed tint, while transition lenses change tint according to light and UV conditions.
Do transition lenses always become very dark?
Not necessarily. Tint strength and speed vary by lens technology and conditions.
Can transition lenses replace sunglasses?
That depends on your preference, the lens specification and how you use the eyewear. A fixed-tint sunglass may still be preferable when you want consistent outdoor tint.
Related eyewear guides
For a more informed choice, read the guide to blue-light-filtering eyewear and what UV400 means. Compare the actual specifications on each product page before ordering.
Featured Belvoir&Co models
These two product descriptions identify photochromic, light-adaptive lenses. Compare their response to light and other specifications. Explore the product pages and their collections to compare official photographs, specifications, colourways and ordering options.