Amplitude of Accommodation and its Relation to Refractive Errors
<b>Aims:</b> To evaluate the relationship between amplitude of accommodation and refractive errors in the peri-presbyopic age group. <b> Materials and Methods:</b> Three hundred and sixteen right eyes of 316 consecutive patients in the age group 35-50 years who attended ou...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Wolters Kluwer Medknow Publications
2005-01-01
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| Series: | Indian Journal of Ophthalmology |
| Subjects: | |
| Online Access: | http://www.ijo.in/article.asp?issn=0301-4738;year=2005;volume=53;issue=2;spage=105;epage=108;aulast=Abraham |
| _version_ | 1824030432200491008 |
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| author | Abraham Lekha Kuriakose Thomas Sivanandam Viswanathan Venkatesan Nithya Thomas Ravi Muliyil Jayaprakash |
| author_facet | Abraham Lekha Kuriakose Thomas Sivanandam Viswanathan Venkatesan Nithya Thomas Ravi Muliyil Jayaprakash |
| author_sort | Abraham Lekha |
| collection | DOAJ |
| description | <b>Aims:</b> To evaluate the relationship between amplitude of accommodation and refractive errors in the peri-presbyopic age group. <b> Materials and Methods:</b> 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. <b> Results:<i> </b></i> There was a statistically significant difference in AA between myopes and hypermetropes (<i> P</i> <0.005) and between myopes and emmetropes (<i> P</i> <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 (<i> P</i> <0.0001), emmetropes and myopes (<i> P</i> <0.01) and hypermetropes and myopes (<i> P</i> <0.0001). In patients above 45 years of age there was no significant difference (<i> P</i> >0.5). <i> </i>Conclusion: Our study showed higher amplitude of accommodation among myopes between 35 and 44 years compared to emmetropes and hypermetropes |
| first_indexed | 2024-12-19T18:40:45Z |
| format | Article |
| id | doaj.art-233e398bfdd8457ebe1604a546cdaac6 |
| institution | Directory Open Access Journal |
| issn | 0301-4738 |
| language | English |
| last_indexed | 2024-12-19T18:40:45Z |
| publishDate | 2005-01-01 |
| publisher | Wolters Kluwer Medknow Publications |
| record_format | Article |
| series | Indian Journal of Ophthalmology |
| spelling | doaj.art-233e398bfdd8457ebe1604a546cdaac62022-12-21T20:10:16ZengWolters Kluwer Medknow PublicationsIndian Journal of Ophthalmology0301-47382005-01-01532105108Amplitude of Accommodation and its Relation to Refractive ErrorsAbraham LekhaKuriakose ThomasSivanandam ViswanathanVenkatesan NithyaThomas RaviMuliyil Jayaprakash<b>Aims:</b> To evaluate the relationship between amplitude of accommodation and refractive errors in the peri-presbyopic age group. <b> Materials and Methods:</b> 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. <b> Results:<i> </b></i> There was a statistically significant difference in AA between myopes and hypermetropes (<i> P</i> <0.005) and between myopes and emmetropes (<i> P</i> <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 (<i> P</i> <0.0001), emmetropes and myopes (<i> P</i> <0.01) and hypermetropes and myopes (<i> P</i> <0.0001). In patients above 45 years of age there was no significant difference (<i> P</i> >0.5). <i> </i>Conclusion: Our study showed higher amplitude of accommodation among myopes between 35 and 44 years compared to emmetropes and hypermetropeshttp://www.ijo.in/article.asp?issn=0301-4738;year=2005;volume=53;issue=2;spage=105;epage=108;aulast=AbrahamAmplitude of accommodationrefractive erroraccommodationpresbyopia |
| spellingShingle | Abraham Lekha Kuriakose Thomas Sivanandam Viswanathan Venkatesan Nithya Thomas Ravi Muliyil Jayaprakash Amplitude of Accommodation and its Relation to Refractive Errors Indian Journal of Ophthalmology Amplitude of accommodation refractive error accommodation presbyopia |
| title | Amplitude of Accommodation and its Relation to Refractive Errors |
| title_full | Amplitude of Accommodation and its Relation to Refractive Errors |
| title_fullStr | Amplitude of Accommodation and its Relation to Refractive Errors |
| title_full_unstemmed | Amplitude of Accommodation and its Relation to Refractive Errors |
| title_short | Amplitude of Accommodation and its Relation to Refractive Errors |
| title_sort | amplitude of accommodation and its relation to refractive errors |
| topic | Amplitude of accommodation refractive error accommodation presbyopia |
| url | http://www.ijo.in/article.asp?issn=0301-4738;year=2005;volume=53;issue=2;spage=105;epage=108;aulast=Abraham |
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