One Pair, Two Modes — Indoors Clear, Outdoors Tinted
Rongchy XR0029 photochromic glasses stay clear indoors and automatically darken to a comfortable grey tint in sunlight. The narrow rectangular silhouette with metal temple accents delivers a clean, retro-professional look — and the lenses filter blue light from screens all day long.
Key Features
- Photochromic lenses — darken in sunlight, fade back to clear indoors, fully automatic
- Blue light filtering — reduces screen glare and visual fatigue from phones, laptops and monitors
- Narrow rectangular frame — slim profile with acetate rim and polished metal temple detailing
- Sturdy hinges & comfortable nose pads — anti-slip temples that stay put through the day
- Three colorways — Black, Olive Green and Red
- Ready to wear — non-prescription (plano) lenses, suitable for everyone
Frame Measurements
| Measurement | Size |
|---|---|
| Lens width | 45 mm |
| Lens height | 53 mm |
| Bridge width | 18 mm |
| Total frame width | 140 mm |
| Temple length | 145 mm |
The compact 45 mm lens and narrow rectangular cut sit close to the face — a tidy, understated fit that suits small and medium faces best.
How the Photochromic Lenses Work
Photochromic molecules inside the lens react to ultraviolet light. Step outside and the lens darkens within seconds to cut glare; head back inside and it returns to clear within a couple of minutes. The reaction is fully reversible and never wears out.
Which Face Shapes Suit Narrow Rectangular Frames?
Narrow rectangular frames add horizontal structure and a touch of retro professionalism. They balance round and oval faces especially well, and read as quietly sharp on square faces too.
Care Tips
- Rinse lenses with lukewarm water before wiping to remove dust particles
- Use a microfibre cloth — never paper towels or clothing
- Avoid leaving the frame on a hot car dashboard; extreme heat can stress the lens coating
Frequently Asked Questions
Are these prescription glasses?
No — XR0029 comes with non-prescription (plano) lenses. They are designed for anyone who wants photochromic and blue light protection without vision correction.
Do they work in a car?
Most car windshields block the UV that activates photochromic lenses, so darkening behind the wheel is reduced. For driving in strong sun, a dedicated pair of sunglasses is still the better choice.
Will the tint block blue light indoors?
Yes. The blue light filtering works whether the lens is clear or tinted, so screen protection is active all day.
How dark do the lenses get?
In direct sunlight they darken to a medium grey tint similar to light sunglasses, then fade back to virtually clear indoors.
Common questions
How do photochromic lenses work?
The lenses darken when UV light reaches them and clear again indoors, usually within 10 to 30 seconds in each direction. Because car windshields filter UV, they stay mostly clear behind the wheel.
Which colours can I order?
3 colourways are available: Black, Olive Green, Red. All colourways share the same lens specification, so the choice is purely about how the frame looks on you.
Will the frame suit my face shape?
The metal front is shaped to sit level on most face widths, and the temples adjust at the hinge. If the frame feels tight at the temples on arrival, easing them outward a few millimetres is enough.
What is the shipping and returns policy?
Shipping is free worldwide with tracking on every order. If the glasses do not suit you, send them back within 30 days of delivery and we refund or exchange them.
Can the coating wear off?
The multi-layer coating is bonded to the lens, and with normal care it holds up for years. Avoid dry-wiping dust off the lens and avoid hot water, both of which are the usual causes of coating damage.
