Contact Lens Spectrum
(p. 17) Orthokeratology Today: Iron Deposition Rings: Now You See Them…Now You Don’t, By Marjorie J. Rah, OD, PhD
Cho P, Chui WS, Cheung SW. Reversibility of corneal pigmented arc associated with orthokeratology. Optom Vis Sci. 2003 Dec;80(12):791-5.
(p. 34) Aspheric Contact Lenses: Fact and Fiction, By Pete Kollbaum, OD, FAAO, and Arthur Bradley, PhD
1. Dietze, H. H. and M. J. Cox (2003). "On- and off-eye spherical aberration of soft contact lenses and consequent changes of effective lens power." Optom Vis Sci 80(2): 126-34.
2. Thibos, L. N., X. Hong, et al. (2002). "Statistical variation of aberration structure and image quality in a normal population of healthy eyes." J Opt Soc Am A Opt Image Sci Vis 19(12): 2329-48.