Diane is wearing a stunning Face a Face frame, a bold acetate. The frame name, Mikado, is very apt for the facetted detailing. This is a departure from her recent frame choices - just what she wants, a change.

Frame: Face a Face Mikado colour 1502KN 35 eye

Lens: Hoya Mystyle Profile Modern progressive, 1.53 Phoenix, Clear lens a Diamond Finish anti-reflection coating.

Acetate (plastic) frame is a change from nosepads for you, how are you finding it?

Diane: The fit of the bridge just works in these ones.

How do you find the vision?

Diane: It is the same progressive design I have had previously, but this pair is so clear. A deeper and larger frame has given me better vision.

You have chosen a Chem Clip with this pair - how do you like it?

I got the rose tint which I like. The clip in it’s case it very compact and I like that it releases space in my bag if I am not carrying my prescription sunglasses with me.

With all your glasses you must have a special storage system?

Absolutely! All safely away in their cases in a drawer. Mostly in the original case but I have been known to swap cases too.

Have you ever wondered how do they test lens coatings? A lot of rubbing it turns out. Lenses are rubbed 20,000 times with a 'linear abrader' and microfibre cloth. Then the lens surface is measured in term of contact angle: the higher the score, the better the cleaning properties.

Hoya's Diamond Finish Coating has been selected as the best lens coating by NSL Analytical Services, an independent laboratory in Ohio. The results showed that Diamond Finish preserved its dust-, dirt-, water- and grease-repellent properties even after long use and repeated cleaning.

In rigorous tests of premium coated lenses simulating real-life wearing conditions, Diamond Finish out performed its competitors on all three features shown to be of primary consumer concern: durability, clean ability and scratch resistance. Lens performance is compared to an ISO reference lens and given a value in terms of scratch resistance. The final score, known as the Bayer value, was 29% more durable that the second place getter.

For us this confirms our experience - the Diamond Finish is a good performer, the best Hoya coating we have used.