Analysis of Accommodative Parameters of 118 Myopic Students

doi:10.3969/j.issn.1004-5775.2014.12.018

Abstract：Objective To measure accommodative parameters of myopic students , and to investigate the rate of myopic students with accommodative dysfunction.Methods In a retrospective case series study ,118 myopic students aged from 6 to18 years ( average 12.27 years old) were recruited from the Department of Ophthalmology of Heilongjiang Provincial Hospital.All patients had routine eye examina-tions to exclude eye disease.The results of accommodative parameters examination and refraction with a phoropter were measured .The rates of five kinds of accommodative dysfunction were analyzed.Results In the 118 myopic students , accommodative amplitudes of 73 adoles-cents (61.86%) were lower than standards, accommodative responses of 83 adolescents(70.34%)were abnormal, positive relative accom-modations(PRA) of 75 adolescents (63.56%) were lower than normal level, negative relative accommodations (NRA) of 44 adolescents (37.29%) were lower than standards , and accommodative facility of 67 adolescents (56.78%) decreased.Conclusion Accommodative parameters of myopic students has abnormalities in accommodative amplitudes , positive relative accommodation , negative relative accommo-dation and accommodative facility.