Current Situation and Progress of Orthokeratology's Influence on the Cornea
Hongjun Liao1 , Fen Xiong2 , Hongfei Liao2
1 Nanchang University School of Ophthalmology & Optometry, Nanchang 330006, China 2 Ophthalmologic Hospital of Nanchang University, Nanchang 330006, China
Abstract:At present, the effectiveness of orthokeratology in controlling myopia has been demonstrated.However, because the lensis close to the cornea, it maybe have an effect on the cornea. First of all, it will exert a certain pressure on the middle region of the cornea.This pressure will affect the flow of tears under the lens, thereby affecting the supply of oxygen and nutrients to the cornea. The relative hypoxia of the cornea leads to a decline in immunity. In addition, lens abrasion scratches the cornea. Partial cleaning of the lens leads to microbial aggregation, causing corneal lesions or even corneal infection. Furthermore, the corneal shape will deform and the thickness will change after wearing, which will affect the force between the layers of the cornea. Finally, long-term compression will also lead to changes in the corneal nerves and reduced sensitivity.The influence of orthokeratology on the cornea has always been a hot topic. This review summarizes the influence of orthokeratology on the cornea.
廖洪君1 熊芬2 廖洪斐2. 角膜塑形镜对角膜影响的研究现状与进展[J]. 中华眼视光学与视觉科学杂志, 2020, 22(6): 476-480.
Hongjun Liao1,Fen Xiong2,Hongfei Liao2. Current Situation and Progress of Orthokeratology's Influence on the Cornea. Chinese Journal of Optometry Ophthalmology and Visual science, 2020, 22(6): 476-480. DOI: 10.3760/cma.j.cn115909-20190307-00062
Cooper J, Tkatchenko AV. A Review of current concepts of the etiology and treatment of myopia. Eye Contact Lens, 2018, 44(4): 231-247. DOI: 10.1097/ICL.0000000000000499.
[2]
Holden BA, Fricke TR, Wilson DA, et al. Global prevalence of myopia and high myopia and temporal trends from 2000 through 2050. Ophthalmology, 2016, 123(5): 1036-1042. DOI: 10.1016/ j.ophtha.2016.01.006.
Lipson MJ, Brooks MM, Koffler BH. The role of orthokeratology in myopia control: A review. Eye Contact Lens, 2018, 44(4): 224- 230. DOI: 10.1097/ICL.0000000000000520.
[5]
Wang L , González S, Dai W, et al. Effect of Hypoxia-regulated Polo-like Kinase 3 (Plk3) on Human Limbal Stem Cell Differentiation. J Biol Chem, 2016, 291(32): 16519-16529. DOI: 10.1074/jbc.M116.725747.
[6]
Muntz A, Subbaraman LN, Sorbara L, et al. Tear exchange and contact lenses: A review. J Optom, 2015, 8(1): 2-11. DOI: 10.1016/j.optom.2014.12.001.
[7]
Choy CK, Cho P, Boost MV. Cytotoxicity of rigid gas-permeable lens care solutions. Clin Exp Optom, 2013, 96(5): 467-471. DOI: 10.1111/cxo.12039.
[8]
Mann A, Tighe B. Contact lens interactions with the tear film. Exp Eye Res, 2013, 117: 88-98. DOI: 10.1016/j.exer.2013.07. 013.
[9]
Shi YH, Zhou LT, Zhang CX, et al. Effects of carbomer eye drops in combination with orthokeratology lens in treating adolescent myopia. J Biol Regul Homeost Agents, 2016, 30(4): 1029-1033.
[10]
Young AL, Leung KS, Tsim N, et al. Risk factors, microbiological profile, and treatment outcomes of pediatric microbial keratitis in a tertiary care hospital in Hong Kong. Am J Ophthalmol, 2013, 156(5): 1040-1044.e2. DOI: 10.1016/j.ajo.2013.06.019.
[11]
Fonn D, Jones L. Hand hygiene is linked to microbial keratitis and corneal inflammatory events. Cont Lens Anterior Eye, 2019, 42(2): 132-135. DOI: 10.1016/j.clae.2018.10.022.
[12]
Lo J, Kuo MT, Chien CC, et al. Microbial bioburden of orthokeratology contact lens care system. Eye Contact Lens, 2016, 42(1): 61-67. DOI: 10.1097/ICL.0000000000000130.
Cheung SW, Boost M, Shi GS, et al. Microbial contamination of periorbital tissues and accessories of children. Optom Vis Sci, 2016, 93(6): 612-618. DOI: 10.1097/OPX.0000000000000843.
[15]
Fang PC, Lo J, Chang TC, et al. Bacterial bioburden decrease in orthokeratology lens storage cases after forewarning: Assessment by the DNA dot hybridization assay. Eye Contact Lens, 2017, 43(3): 174-180. DOI: 10.1097/ICL.0000000000000252.
[16]
Kam KW, Yung W, Li G, et al. Infectious keratitis and orthokeratology lens use: A systematic review. Infection, 2017, 45(6): 727-735. DOI: 10.1007/s15010-017-1023-2.
[17]
Yip H, Whiting M. Kingella kingae microbial keratitis in a human immunodeficiency virus patient with orthokeratology lens wear. Clin Exp Ophthalmol, 2017, 45(4): 420-421. DOI: 10.1111/ceo.12900.
[18]
Bullimore MA, Sinnott LT, Jones-Jordan LA. The risk of microbial keratitis with overnight corneal reshaping lenses. Optom Vis Sci, 2013, 90(9): 937-944. DOI: 10.1097/OPX. 0b013e31829cac92.
[19]
Chen R, Mao X, Jiang J, et al. The relationship between corneal biomechanics and anterior segment parameters in the early stage of orthokeratology: A pilot study. Medicine (Baltimore), 2017, 96(19): e6907. DOI: 10.1097/MD.0000000000006907.
[20]
Kim WK, Kim BJ, Ryu IH, et al. Corneal epithelial and stromal thickness changes in myopic orthokeratology and their relationship with refractive change. PLoS One, 2018, 13(9): e0203652. DOI: 10.1371/journal.pone.0203652.
[21]
Chang CJ, Yang HH, Chang CA, et al. The influence of orthokeratology on intraocular pressure measurements. Semin Ophthalmol, 2013, 28(4): 210-215. DOI: 10.3109/08820538. 2013.768679.
[22]
Ishida Y, Yanai R, Sagara T, et al. Decrease in intraocular pressure following orthokeratology measured with a noncontact tonometer. Jpn J Ophthalmol, 2011, 55(3): 190-195. DOI: 10.1007/s10384-011-0018-2.
[23]
Cheung SW, Cho P. Long-term effect of orthokeratology on the anterior segment length. Cont Lens Anterior Eye, 2016, 39(4): 262-265. DOI: 10.1016/j.clae.2016.02.003.
[24]
Lu F, Tao A, Tao W, et al. Thickness changes in the corneal epithelium and Bowman's layer after overnight wear of silicone hydrogel contact lenses. BMC Ophthalmol, 2018, 18(1): 286. DOI: 10.1186/s12886-018-0956-2.
Hoffer KJ. Corneal Endothelial Cell Density in Children: Normative Data From Birth to 5 Years Old. Am J Ophthalmol, 2017, 178: 186. DOI: 10.1016/j.ajo.2017.02.032.
[30]
Cheung SW, Cho P. Does a two-year period of orthokeratology lead to changes in the endothelial morphology of children? Cont Lens Anterior Eye, 2018, 41(2): 214-218. DOI: 10.1016/ j.clae.2017.10.006.
Bueno-Gimeno I1, Martínez-Albert N1, Gené-Sampedro A1, et al. Anterior Segment Biometry and Their Correlation with Corneal Biomechanics in Caucasian Children. Curr Eye Res, 2019, 44(2): 118-124. DOI: 10.1080/02713683.2018.1539181.
[34]
Chen D, Lam AK, Cho P. A pilot study on the corneal biomechanical changes in short-term orthokeratology. Ophthalmic Physiol Opt, 2009, 29(4): 464-471. DOI: 10.1111/ j.1475-1313.2008.00625.x.
[35]
Nieto-Bona A, Gonzalez-Mesa A, Villa-Collar C, et al. Biomechanical properties in corneal refractive therapy during adaptation period and after treatment interruption. Optom, 2012, 5: 164-170. DOI: 10.1016/j.optom.2012.06.006.
Lam AK, Leung SY, Hon Y, et al. Influence of shortterm orthokeratology to corneal tangent modulus: A randomized study. Curr Eye Res, 2018, 43(4): 474-481. DOI: 10.1080/02713683.2017.1418895.
[38]
Garcia-Hirschfeld J, Lopez-Briones LG, Belmonte C. Neurotrophic influences on corneal epithelial cells. Exp Eye Res, 1994, 59(5): 597-605. DOI: 10.1006/exer.1994.1145.
Stapleton F, Marfurt C, Golebiowski B, et al. The TFOS international workshop on contact lens discomfort: Report of the subcommittee on neurobiology. Invest Ophthalmol Vis Sci, 2013, 54(11): TFOS71-97. DOI: 10.1167/iovs.13-13226.
[41]
Nombela-Palomo M, Felipe-Marquez G, Hernandez-Verdejo JL, et al. Short-term effects of overnight orthokeratology on corneal sub-basal nerve plexus morphology and corneal sensitivity. Eye Contact Lens, 2018, 44(2): 77-84. DOI: 10.1097/ICL. 0000000000000282.
[42]
Lum E, Golebiowski B, Swarbrick HA. Changes in corneal subbasal nerve morphology and sensitivity during orthokeratology: Onset of change. Ocul Surf, 2017, 15(2): 227- 235. DOI: 10.1016/j.jtos.2016.07.005.
[43]
Lum E, Golebiowski B, Swarbrick HA. Reduced corneal sensitivity and sub-basal nerve density in long-term orthokeratology lens wear. Eye Contact Lens, 2017, 43(4): 218- 224. DOI: 10.1097/ICL.0000000000000285.
[44]
Lum E, Golebiowski B, Swarbrick HA. Mapping the corneal sub-basal nerve plexus in orthokeratology lens wear using in vivo laser scanning confocal microscopy. Invest Ophthalmol Vis Sci, 2012, 53(4): 1803-1809. DOI: 10.1167/iovs.11-8706.
[45]
Lum E, Golebiowski B, Swarbrick HA. Changes in corneal subbasal nerve morphology and sensitivity during orthokeratology: Recovery of change. Ocul Surf, 2017, 15(2): 236-241. DOI: 10.1016/j.jtos.2017.01.009.
[46]
Xie P, Guo X. Chinese Experiences on Orthokeratology. Eye Contact Lens, 2016, 42(1): 43-47. DOI: 10.1097/ICL. 0000000000000190.