How many artists have a fascination with drawing an eye? You know - just the one. One you can enjoy. Two means you have to match them up properly (twins, not sisters). I had a fun job come in through my agent about dry eye. Wouldn't you know it? City life and too many hours staring at a screen are two major contributors. This was published as a supplement to the Pharmaceutical Journal published by the Royal Pharmaceutical Society. Find the supplement here.