Table 5. .

A Summary of Ciliary Muscle Thickness Studies

Study Authors/Number	Refractive Error Type With Thickest Ciliary Muscle Region						Age of Subjects	Refractive Error Range	Study Design
	CMTMAX	CMT1	CMT2	CMT3	Apical CMTMAX	Apical CMT1
Oliveira et al.2/ n = 75	N/A	N/A	Myopia	Myopia	N/A	N/A	Older adults	−14.75 to +15.50	Cross-sectional
Bailey et al.1/ n = 53	No relationship	No relationship	Myopia	Myopia	N/A	N/A	Children	−6.00 to +3.00	Cross-sectional
Muftuoglu et al.15/n = 19	More myopic eye	N/A	N/A	N/A	N/A	N/A	Young adults	−17.38 to −6.25	Anisometropia
Anisomeropic adults*/n = 30	Myopic subjects, no difference between eyes	Myopic subjects, no difference between eyes	Myopic subjects, no difference between eyes	Myopic subjects, no difference between eyes	Hyperopes	Hyperopes	Young adults	−8.40 to +5.84	Anisometropia
Young adults*/ n = 92	Moderate myopia (quadratic)	Moderate myopia (quadratic)	Moderate myopia (quadratic)	Moderate myopia (quadratic)	Hyperopes	Hyperopes	Young adults	−10.93 to +6.08	Cross-sectional
Present study	Low to moderate myopia (quadratic)	Low to moderate myopia (quadratic)	Moderate myopia (linear)	Moderate myopia (linear)	Hyperopes	Hyperopes	Children	−4.01 to +7.76	Mixed

N/A, not available, measurements were not made/reported. Anisometropia: study included subjects with anisometropia and reported the within-subject relationship between the more and less myopic eyes.

^*Bailey MD, et al. IOVS 2012;53:AAO E-Abstract 120615.