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Age-related changes in accommodative dynamics from preschool to adulthood.
Invest Ophthalmol Vis Sci. 2010 Jan; 51(1):614-22.IO

Abstract

PURPOSE

To study variations in dynamic measures of accommodation and disaccommodation with age in subjects ranging from preschool to adulthood.

METHODS

Accommodative responses to a step stimulus cartoon movie alternating from distance to near were recorded with a dynamic infrared photorefractor. Subjects viewed at least three stimulus cycles of far and near for four near stimulus demands (2, 3, 4, and 5 D). Latencies, peak velocities, and the magnitude of accommodative microfluctuations were calculated from the responses and compared in 41 subjects from 3 to 38 years of age.

RESULTS

Mean accommodative and disaccommodative latencies decreased linearly with age. The magnitude of accommodative microfluctuations during sustained near accommodation had a significant quadratic relationship to age, with subjects in the first decade of life having the largest fluctuations and subjects in the third decade of life having the smallest for all stimulus demands. Accommodative peak velocities were fastest in subjects in the first two decades of life, compared with subjects in the third and fourth decades; however, disaccommodative peak velocities showed no significant age differences.

CONCLUSIONS

Age-related changes in dynamics occur in accommodative and disaccommodative latencies, accommodative peak velocities, and accommodative microfluctuations, all of which decrease with increasing age from preschool to adulthood. Disaccommodative peak velocities showed no change with age.

Authors+Show Affiliations

College of Optometry, University of Houston, Houston, Texas 77204-2020, USA. handerson@optometry.uh.eduNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, N.I.H., Extramural
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

19684002

Citation

Anderson, Heather A., et al. "Age-related Changes in Accommodative Dynamics From Preschool to Adulthood." Investigative Ophthalmology & Visual Science, vol. 51, no. 1, 2010, pp. 614-22.
Anderson HA, Glasser A, Manny RE, et al. Age-related changes in accommodative dynamics from preschool to adulthood. Invest Ophthalmol Vis Sci. 2010;51(1):614-22.
Anderson, H. A., Glasser, A., Manny, R. E., & Stuebing, K. K. (2010). Age-related changes in accommodative dynamics from preschool to adulthood. Investigative Ophthalmology & Visual Science, 51(1), 614-22. https://doi.org/10.1167/iovs.09-3653
Anderson HA, et al. Age-related Changes in Accommodative Dynamics From Preschool to Adulthood. Invest Ophthalmol Vis Sci. 2010;51(1):614-22. PubMed PMID: 19684002.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Age-related changes in accommodative dynamics from preschool to adulthood. AU - Anderson,Heather A, AU - Glasser,Adrian, AU - Manny,Ruth E, AU - Stuebing,Karla K, Y1 - 2009/08/13/ PY - 2009/8/18/entrez PY - 2009/8/18/pubmed PY - 2010/2/4/medline SP - 614 EP - 22 JF - Investigative ophthalmology & visual science JO - Invest. Ophthalmol. Vis. Sci. VL - 51 IS - 1 N2 - PURPOSE: To study variations in dynamic measures of accommodation and disaccommodation with age in subjects ranging from preschool to adulthood. METHODS: Accommodative responses to a step stimulus cartoon movie alternating from distance to near were recorded with a dynamic infrared photorefractor. Subjects viewed at least three stimulus cycles of far and near for four near stimulus demands (2, 3, 4, and 5 D). Latencies, peak velocities, and the magnitude of accommodative microfluctuations were calculated from the responses and compared in 41 subjects from 3 to 38 years of age. RESULTS: Mean accommodative and disaccommodative latencies decreased linearly with age. The magnitude of accommodative microfluctuations during sustained near accommodation had a significant quadratic relationship to age, with subjects in the first decade of life having the largest fluctuations and subjects in the third decade of life having the smallest for all stimulus demands. Accommodative peak velocities were fastest in subjects in the first two decades of life, compared with subjects in the third and fourth decades; however, disaccommodative peak velocities showed no significant age differences. CONCLUSIONS: Age-related changes in dynamics occur in accommodative and disaccommodative latencies, accommodative peak velocities, and accommodative microfluctuations, all of which decrease with increasing age from preschool to adulthood. Disaccommodative peak velocities showed no change with age. SN - 1552-5783 UR - https://www.unboundmedicine.com/medline/citation/19684002/Age_related_changes_in_accommodative_dynamics_from_preschool_to_adulthood_ L2 - https://iovs.arvojournals.org/article.aspx?doi=10.1167/iovs.09-3653 DB - PRIME DP - Unbound Medicine ER -