The photo you showed looks like very old technology used for selecting a lense. First they test your eyes. I reiterate my doubt that the Bangkok Hospital wouldn't have the best most modern equipment. Are you from England? If so that might explain that you're not used to seeing really modern equipment. BTW I have an astigmatism in both eyes and have had eye tests in England, Thailand, Vietnam, Kuwait and Saudi. Here in Thailand you get the best International modern quality treatment far better than UK. Certainly just as good. Many British people have never experienced top quality medical treatment so when they get it as you did in the Bangkok Hospital its confusing for them.