A photographer's most important assets, physically at least are the eyes and the index finger so it was particularly worrying a few years back when I developed diabetic retinopathy meaning I was regularly subjected to painful laser treatment and the worry of going blind. Back in 2013 I was referred to London's Moorfields Eye Hospital after I had a bad bleed in my left eye causing me to temporarily lose sight in it and then just last December I had the same issue in my right e