FP109

Comparison of 4 different methods for near addition in presbyopia

Purpose:To compare agreement between 4 different methods for near addition in presbyopic patients,agreement between tentative and final prescription values and predict physiological variables for optimal spectacle correction
Methods:Cross-sectional study on 50 participants.Inclusion criteria:Age 40-60, BCVA 6/9,N8.Near addition determined using dynamic retinoscopy(DR),Amplitude of accomodation using RAF rule(AA-RAF),Increasing plus lenses(IPL) and age-related method. 
Results: Bland and Altman method showed strong agreement between dynamic retinoscopy and increasing plus lenses (d= 0.915) followed by AA RAF (d=1.485) and age-related method (d=1.530).IPL method had strong agreement with final addition (mean difference(d)=-0.225).Age correlated positively with final addition. Gender,IPD, and PD had no significant correlation. 
Conclusion: All 4 methods were good, but IPL was closely similar to final addition.IPL is suggested for busy OPDs due to time efficiency and satisfactory results.