I found some statistics which indicate 1.5 million cataract operations a year in the US and 20 million world wide. The average cost in the US is $3000. If the cost for improving the success is $20. (Standard saline solutions sell for $7) that would be $30 million/yr in the US and I would expect another $60 million from Europe. So this one product might generate revenues of $90 million per year. If we go worldwide it could be $400 million/year. In any case if they only net $20 million from this product that would be a forward P/E of 10 at the current stock price so a few other products would be nice ?