Christian DiorSunglasses

Q: What is Optyl and why does it matter for these Dior sunglasses?
A: Optyl is a lightweight, hypoallergenic thermosetting frame material with a memory effect. It holds rich colour well and is comfortable to wear. It can be adjusted with controlled heat by a professional and is valued on many vintage Dior frames for durability and comfort.

Q: Can I fit prescription or new sun lenses into this vintage Dior frame?
A: In most cases, yes. A qualified optician can re-lens Optyl frames with clear prescription lenses or UV-protective sun lenses (including polarised or brown gradient) as long as the frame’s shape and size are suitable. They will handle Optyl with the correct heat and tools.

Q: Do the brown gradient lenses block UV and are they suitable for driving?
A: UV protection depends on the specific lenses. Look for markings such as UV400/CE on the frame or have an optician test the lenses. For daytime driving, lens filter categories 2–3 are generally recommended; category 4 lenses are not suitable for driving at any time. Sunglasses are not suitable for night driving. Gradient tints can work well in daylight as they reduce glare from above while keeping the dashboard area clearer.

Q: The listing notes scratches on the lenses. Will I notice them and can they be polished out?
A: Light hairline marks may be minimally visible; deeper scratches can be distracting, especially against bright light. Polishing coated sunglass lenses is usually not recommended and home remedies can damage coatings. If scratches bother you, lens replacement is the most reliable solution.

Q: How should I adjust the fit on Optyl frames?
A: Do not bend Optyl when cold. An optician should warm the frame with controlled heat to adjust the temples or bridge. Because Optyl has a memory effect, it may revert if not adjusted correctly, so professional fitting is advised.

Q: How do I clean and care for these sunglasses?
A: Rinse lenses with lukewarm water, use a drop of mild soap, then dry with a clean microfibre cloth. Avoid paper towels and household cleaners (alcohol, acetone, glass sprays) which can damage coatings. Store them in a protective case or the included dust bag and avoid leaving them on hot dashboards or near direct heat.

Q: Are these unisex and what size will they suit?
A: Oversized butterfly frames are commonly worn by any gender. Fit is best judged by the lens–bridge–temple numbers printed inside the arm (for example, 55–17–140). If the numbers aren’t shown, contact us and we can measure the frame for you.

Q: Where were these made and what markings should I expect on vintage Dior sunglasses?
A: This pair is marked Germany. Vintage Dior frames typically show Christian Dior branding and model information on the inner temple, and many list Optyl on the arm. Stamps should be crisp and evenly spaced for a quality finish.

Q: What is included with this item?
A: Everything included is listed under product information. For this pair, a dust bag is included. If a branded case or other items aren’t listed there, they are not included.

Q: How does A Retro Tale authenticate sunglasses?
A: Every item is checked by our specialists using multi-point authentication, including materials, construction, stamps, logo fonts, and period-correct details. We stand behind the authenticity of all items and are happy to provide additional photos or details on request.