TY - JOUR A1 - Abraham, Lekha A1 - Kuriakose, Thomas A1 - Sivanandam, Viswanathan A1 - Venkatesan, Nithya A1 - Thomas, Ravi A1 - Muliyil, Jayaprakash T1 - Amplitude of Accommodation and its Relation to Refractive Errors Y1 - 2005/4/1 JF - Indian Journal of Ophthalmology JO - Indian J Ophthalmol SP - 105 EP - 108 VL - 53 IS - 2 UR - https://journals.lww.com/ijo/pages/default.aspx/article.asp?issn=0301-4738;year=2005;volume=53;issue=2;spage=105;epage=108;aulast=Abraham DO - 10.4103/0301-4738.16173 N2 - Aims: To evaluate the relationship between amplitude of accommodation and refractive errors in the peri-presbyopic age group. Materials and Methods: Three hundred and sixteen right eyes of 316 consecutive patients in the age group 35-50 years who attended our outpatient clinic were studied. Emmetropes, hypermetropes and myopes with best-corrected visual acuity of 6/6 J1 in both eyes were included. The amplitude of accommodation (AA) was calculated by measuring the near point of accommodation (NPA). In patients with more than ± 2 diopter sphere correction for distance, the NPA was also measured using appropriate soft contact lenses. Results: There was a statistically significant difference in AA between myopes and hypermetropes ( P <0.005) and between myopes and emmetropes ( P <0.005) in the 35-39 year age group. In the 40- 44 year age group, there was a significant difference in AA between emmetropes and hypermetropes ( P <0.0001), emmetropes and myopes ( P <0.01) and hypermetropes and myopes ( P <0.0001). In patients above 45 years of age there was no significant difference ( P >0.5). Conclusion: Our study showed higher amplitude of accommodation among myopes between 35 and 44 years compared to emmetropes and hypermetropes ER -