Evaluating three different methods of determining addition in presbyopia

Purpose: to compare three different methods for determining addition in presbyopes. methods: the study included 81 subjects with presbyopia who aged 40-70 years. reading addition values were measured using 3 approaches including the amplitude of accommodation (aa),dynamic retinoscopy (dr),and increasing plus lens (ipl). results: ipl overestimated reading addition relative to other methods. mean near addition obtained by aa,dr and ipl were 1.31,1.68 and 1.77,respectively. our results showed that ipl method could provide 20/20 vision at near in the majority of presbyopic subjects (63.4%). conclusion: the results were approximately the same for 3 methods and provided comparable final addition; however,mean near additions were higher with increasing plus lens compared with the other two methods. in presbyopic individuals,increasing plus lens is recommended as the least time-consuming method with the range of ±0.50 diopter at the 40 cm working distance. © 2016 journal of ophthalmic and vision research.