In the last few years my eyes have been a little unpredictable — I feel as though I just can't see right. Frequent eye tests let me know I should be able to see just fine with my current glasses.

I value my sight, so my glasses are something I spend money on: high quality, high refraction index progressive lenses, with anti-reflective coating and rimless lightweight frames.

Today I finally realised: the problem may well be that although I treat my specs with great care the photochromic coating I’ve availed myself of in the last few years has become blotchy.

I can’t afford new glasses really but I dislike constantly feeling as though I can’t quite see right. I’m getting a quote for new daily specs, just the same as my current ones but not photochromic.

Later on maybe I’ll convert this frame to carry polarised lenses for sunny days.

A scratched and degraded lens on a pair of glasses.