The most things is that I like that was its service.of the employees and its methods of checking. I also had gone to Priyamvada Birla hospital(p.b.h) in Calcutta. They(p.b.h) first check once, then dilution then once they check by some junior doc. Then one from senior doc. But in Vasan, once by a junior doc. in 2 machines of eyes and one machine for checking your spectacles power. which Priyamvada is not bothered about but then after and before dilution once by a senior doc. Then again by a senior doc.
Then, after 2 days they will call you again to again check your power (if they cant sort out in once due to dilution) then they will ask you to make new glasses. If the power needs to be changed, it is free for below 21 and above 50 years of ages.
All of you must try it out.