I am no expert, but I had new capilliary growth in both eyes following my second stroke, as a direct result of the stroke and not diabetic complication. They treated both eyes with laser ablation by zapping the peripheral areas of the eye, So I frighten the girls in specsavers by presenting them with a moonscape in the annual retinopathy check, but my eyes have been stable ever since, so no need for any further zapping. Some minor loss of field of vision, and some loss of nighttime sensitivity
Now old age has caught up on me, and I have surrendered my driving licence, and may not get it back since I too have cataracts, and am awaiting surgery.