Your host, Dr Ben LaHood is joined for this first episode by Dr John Berdahl, an ophthalmologist of many talents and interests. You may know him from his cataract, refractive and corneal surgery as well as producing astigmatismfix.com but it is John's theories about glaucoma which may not only help people retain their vision but also help get astronauts safely to Mars. John Berdahl is certainly an eye surgeon worthy of a second look.