Effect of even and odd-order aberrations on the accommodation response
AIM: To investigate the potential effect that odd and even-order monochromatic aberrations may have on the accommodation response of the human eye. METHODS: Eight healthy subjects with astigmatism below 1 D, best corrected visual acuity 20/20 or better and normal findings in an ophthalmic examinati...
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| Format: | Article |
| Language: | English |
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Press of International Journal of Ophthalmology (IJO PRESS)
2017-06-01
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| Series: | International Journal of Ophthalmology |
| Subjects: | |
| Online Access: | http://www.ijo.cn/en_publish/2017/6/20170619.pdf |
| _version_ | 1819044117010710528 |
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| author | Aikaterini I. Moulakaki Antonio J. Del Águila-Carrasco José J. Esteve-Taboada Robert Montés-Micó |
| author_facet | Aikaterini I. Moulakaki Antonio J. Del Águila-Carrasco José J. Esteve-Taboada Robert Montés-Micó |
| author_sort | Aikaterini I. Moulakaki |
| collection | DOAJ |
| description | AIM: To investigate the potential effect that odd and even-order monochromatic aberrations may have on the accommodation response of the human eye.
METHODS: Eight healthy subjects with astigmatism below 1 D, best corrected visual acuity 20/20 or better and normal findings in an ophthalmic examination were enrolled. An adaptive optics system was used in order to measure the accommodation response of the subjects’ eyes under different conditions: with the natural aberrations being present, and with the odd and even-order aberrations being corrected. Three measurements of accommodation response were monocularly acquired at accommodation demands ranging from 0 to 4 D (0.5 D step).
RESULTS: The accommodative lag was greater for the accommodative demands of 1.5, 3, 3.5 and 4 D for the condition in which the even-order aberrations were corrected, in comparison to that obtained for the natural aberrations and corrected odd-order aberrations for the same accommodation demands. No statistically significant differences were found between the accommodation responses under the three conditions.
CONCLUSION: The odd and even-order aberrations are not helping the visual system to accommodate, because their partial correction do not affect the accommodation performance. |
| first_indexed | 2024-12-21T10:07:34Z |
| format | Article |
| id | doaj.art-a75d008fed4c49afb279136a9b031fd0 |
| institution | Directory Open Access Journal |
| issn | 2222-3959 2227-4898 |
| language | English |
| last_indexed | 2024-12-21T10:07:34Z |
| publishDate | 2017-06-01 |
| publisher | Press of International Journal of Ophthalmology (IJO PRESS) |
| record_format | Article |
| series | International Journal of Ophthalmology |
| spelling | doaj.art-a75d008fed4c49afb279136a9b031fd02022-12-21T19:07:48ZengPress of International Journal of Ophthalmology (IJO PRESS)International Journal of Ophthalmology2222-39592227-48982017-06-0110695596010.18240/ijo.2017.06.19Effect of even and odd-order aberrations on the accommodation responseAikaterini I. Moulakaki0Antonio J. Del Águila-Carrasco1José J. Esteve-Taboada2Robert Montés-Micó3Department of Optics and Optometry and Vision Sciences, University of Valencia, C/Dr. Moliner 50, Burjassot 46100, Valencia, SpainDepartment of Optics and Optometry and Vision Sciences, University of Valencia, C/Dr. Moliner 50, Burjassot 46100, Valencia, SpainDepartment of Optics and Optometry and Vision Sciences, University of Valencia, C/Dr. Moliner 50, Burjassot 46100, Valencia, SpainDepartment of Optics and Optometry and Vision Sciences, University of Valencia, C/Dr. Moliner 50, Burjassot 46100, Valencia, SpainAIM: To investigate the potential effect that odd and even-order monochromatic aberrations may have on the accommodation response of the human eye. METHODS: Eight healthy subjects with astigmatism below 1 D, best corrected visual acuity 20/20 or better and normal findings in an ophthalmic examination were enrolled. An adaptive optics system was used in order to measure the accommodation response of the subjects’ eyes under different conditions: with the natural aberrations being present, and with the odd and even-order aberrations being corrected. Three measurements of accommodation response were monocularly acquired at accommodation demands ranging from 0 to 4 D (0.5 D step). RESULTS: The accommodative lag was greater for the accommodative demands of 1.5, 3, 3.5 and 4 D for the condition in which the even-order aberrations were corrected, in comparison to that obtained for the natural aberrations and corrected odd-order aberrations for the same accommodation demands. No statistically significant differences were found between the accommodation responses under the three conditions. CONCLUSION: The odd and even-order aberrations are not helping the visual system to accommodate, because their partial correction do not affect the accommodation performance.http://www.ijo.cn/en_publish/2017/6/20170619.pdf960accommodation responsemonochromatic aberrationsadaptive optics |
| spellingShingle | Aikaterini I. Moulakaki Antonio J. Del Águila-Carrasco José J. Esteve-Taboada Robert Montés-Micó Effect of even and odd-order aberrations on the accommodation response International Journal of Ophthalmology 960 accommodation response monochromatic aberrations adaptive optics |
| title | Effect of even and odd-order aberrations on the accommodation response |
| title_full | Effect of even and odd-order aberrations on the accommodation response |
| title_fullStr | Effect of even and odd-order aberrations on the accommodation response |
| title_full_unstemmed | Effect of even and odd-order aberrations on the accommodation response |
| title_short | Effect of even and odd-order aberrations on the accommodation response |
| title_sort | effect of even and odd order aberrations on the accommodation response |
| topic | 960 accommodation response monochromatic aberrations adaptive optics |
| url | http://www.ijo.cn/en_publish/2017/6/20170619.pdf |
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