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Ciliary Body Thickness and the Relationship to Refractive Error and Accommodative Function in Adults

Ernst, Lauren E.
http://rave.ohiolink.edu/etdc/view?acc_num=osu1271097119

Abstract Details

2010, Master of Science, Ohio State University, Vision Science.
The purpose of this study was to determine the relationships among ciliary body thickness, anterior scleral thickness, accommodative lag, and refractive error in adults as well as the difference between nasal and temporal ciliary body thickness. Subjects with varying refractive error (range: -11.03 to +3.13 D) were recruited. Cycloplegic refractive error, axial length, accommodative lag (4.00-D stimulus), and ciliary body thickness (CBT2, CBT3) and anterior scleral thickness (AST2) at 2 and 3 mm posterior to the scleral spur were measured. Repeated measures regression models were used to define the relationship between CBT2, CBT3 and refractive error, axial length, or accommodative lag, and also AST2 and refractive error or axial length. A Bland-Altman analysis was utilized to determine the difference between nasal and temporal ciliary body thickness. The relationships between CBT2 and CBT3 and refractive error were statistically significant (p = 0.04 and 0.02 respectively). The relationships between CBT2 and CBT3 and axial length were statistically significant (p = 0.01 and 0.002 respectively). No relationship was found between AST2 and refractive error or between AST2 and axial length (all p > 0.05). The relationship between ciliary body thickness and accommodative lag was not significant at any measurement point. The ciliary body was thicker in patients with increasing myopia and increasing axial lengths. Further studies are needed to determine if thicker ciliary bodies are related to the etiology of myopia and to determine if differences in the etiology exist for low-to-moderate myopia as opposed to high myopia.
Melissa Bailey, OD, PhD (Advisor)
Mark Bullimore, MCOptom, PhD (Committee Member)
Donald Mutti, OD, PhD (Committee Member)
48 p.
Ophthalmology
myopia; ciliary body; refractive error

Recommended Citations

Citations

  • Ernst, L. E. (2010). Ciliary Body Thickness and the Relationship to Refractive Error and Accommodative Function in Adults [Master's thesis, Ohio State University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=osu1271097119

    APA Style (7th edition)

  • Ernst, Lauren. Ciliary Body Thickness and the Relationship to Refractive Error and Accommodative Function in Adults. 2010. Ohio State University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=osu1271097119.

    MLA Style (8th edition)

  • Ernst, Lauren. "Ciliary Body Thickness and the Relationship to Refractive Error and Accommodative Function in Adults." Master's thesis, Ohio State University, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=osu1271097119

    Chicago Manual of Style (17th edition)

osu1271097119
514
© 2010, all rights reserved.
This open access ETD is published by The Ohio State University and OhioLINK.