Dr. P Viswanathan Cataract And Refractive Surgeon,Vitreoretina Specialist,Ophthalmologist/ Eye Surgeon25 years of experienceMBBS,MS - Ophthalmology Write a Review Enquire Now Consult Dr. P ViswanathanOverviewReviewsMedical Q&ABlogsFAQ No Medical Q&A Answered by Dr. P Viswanathan