These methods are very confusing. I use different method. e.g _300×180 _200×90 Difference between two is1 so, I write, _300+100×90 Working dist150 Now it will be _450+100×90 After transportation, _350_100×180. Please comment which method is easy..?
It depends who is comfortable with which methods... But first we need to clear basics. First we need to understand how to calculate power from optical cross. When we understand the mechanism, we can follow any methods... Check 2 other methods of retinoscopy also. Link Available in description. Thank you, Samir Sutradhar.
