Myopia Progression in Children Wearing Peripheral Defocus Modifying Lenses: Four Years of Retrospective Analysis
Yin Guo1 , Feifei Tian2 , Min Wu1 , Yi Feng1 , Ping Tang1 , Yanyun Lu1
1 Tongren Eye Care Center, Beijing Tongren Hospital, Capital Medical University, Beijing 100015, China 2 School of Public Health, Capital Medical University, Beijing 100069, China
Abstract: Objective: To review myopia progression over 4 years in children who wore peripheral defocus modifying lenses (PDMLs), and assess its efficacy of myopia control. Methods: This was a retrospective, nonrandomized controlled trial at a tertiary referral center (Tongren Eye Care Center, Beijing Tongren Hospital). Data from 217 children aged 8-14 years who wore PDMLs or single vision lenses (SVLs) consecutively for 4 years (from 2011 to 2014) were collected from electronic medical records. Information such as age, gender, refraction, and type of spectacle lenses were included. PDML is an asymmetric design in which myopia progression was slowed using peripheral vision control technology. Final subjects were 88 children who were included after propensity score matching, with 44 children in each group. Only data of right eyes were included using a generalized estimation equation (GEE) model. Independent t tests and Chi-square tests were used to determine whether myopia progression differed between the two groups. Results: Annual myopia progression was -0.85±0.43 D, -0.60±0.35 D, -0.64±0.26 D and -0.53±0.28 D in the PDML group, and was -0.82±0.42 D, -0.79±0.44 D, -0.61±0.40 D and -0.58±0.33 D in the SVL group, respectively. 59%(26/44) in the PDML group progressed lower than 2.00 D, slightly higher than that of 50.0%(22/44) in the SVL group (χ2 =2.06, P=0.12). After stratification by age and baseline refraction, there was also no significant difference in myopia progression between the two groups. In the GEE model, annual myopia progression was associated with age (β=0.06; standard error: 0.01; 95%CI: 0.03, 0.09; P<0.001) and treatment (β=-0.09; standard error: 0.05; 95%CI: -0.19, -0.01; P=0.04). Conclusions: Compared to single vision lenses, peripheral defocus modifying lenses can moderately slow myopia progression. However, the effect is not remarkable in clinical practice.
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.
[2]
Guo Y, Duan JL, Liu LJ, et al. High myopia in greater Beijing school children in 2016. PLoS One, 2017, 12(11): e0187396. DOI: 10.1371/journal.pone.0187396.
Cho P, Tan Q. Myopia and orthokeratology for myopia control. Clin Exp Optom, 2019, 102(4): 364-377. DOI: 10.1111/ cxo.12839.
[5]
Wu PC, Chuang MN, Choi J, et al. Update in myopia and treatment strategy of atropine use in myopia control. Eye (Lond), 2019, 33(1): 3-13. DOI: 10.1038/s41433-018-0139-7.
[6]
Sankaridurg P. Contact lenses to slow progression of myopia. Clin Exp Optom, 2017, 100(5): 432-437. DOI: 10.1111/ cxo.12584.
[7]
Huang J, Wen D, Wang Q, et al. Efficacy comparison of 16 interventions for myopia control in children: A network metaanalysis. Ophthalmology, 2016, 123(4): 697-708. DOI: 10.1016/ j.ophtha.2015.11.010.
[8]
Sankaridurg P, Donovan L, Varnas S, et al. Spectacle lenses designed to reduce progression of myopia: 12-month results. Optom Vis Sci, 2010, 87(9): 631-641. DOI: 10.1097/ OPX.0b013e3181ea19c7.
[9]
Kanda H, Oshika T, Hiraoka T, et al. Effect of spectacle lenses designed to reduce relative peripheral hyperopia on myopia progression in Japanese children: A 2-year multicenter randomized controlled trial. Jpn J Ophthalmol, 2018, 62(5): 537-543. DOI: 10.1007/s10384-018-0616-3.
Smith EL 3rd, Huang J, Hung LF, et al. Hemiretinal form deprivation: Evidence for local control of eye growth and refractive development in infant monkeys. Invest Ophthalmol Vis Sci, 2009, 50(11): 5057-5069. DOI: 10.1167/iovs.08-3232.
[12]
Smith EL 3rd, Hung LF, Huang J, et al. Effects of optical defocus on refractive development in monkeys: Evidence for local, regionally selective mechanisms. Invest Ophthalmol Vis Sci, 2010, 51(8): 3864-3873. DOI: 10.1167/iovs.09-4969.
[13]
Faria-Ribeiro M, Queirós A, Lopes-Ferreira D, et al. Peripheral refraction and retinal contour in stable and progressive myopia. Optom Vis Sci, 2013, 90(1): 9-15. DOI: 10.1097/OPX. 0b013e318278153c.
[14]
Atchison DA, Rosén R. The possible role of peripheral refraction in development of myopia. Optom Vis Sci, 2016, 93(9): 1042- 1044. DOI: 10.1097/OPX.0000000000000979.
Backhouse S, Fox S, Ibrahim B, et al. Peripheral refraction in myopia corrected with spectacles versus contact lenses. Ophthalmic Physiol Opt, 2012, 32(4): 294-303. DOI: 10.1111/ j.1475-1313.2012.00912.x.
[17]
Li SM, Li SY, Liu LR, et al. Peripheral refraction in 7- and 14-year-old children in central China: the Anyang Childhood Eye Study. Br J Ophthalmol, 2015, 99(5): 674-679. DOI: 10.1136/bjophthalmol-2014-305322.
Verkicharla PK, Mathur A, Mallen EA, et al. Eye shape and retinal shape, and their relation to peripheral refraction. Ophthalmic Physiol Opt, 2012, 32(3): 184-199. DOI: 10.1111/ j.1475-1313.2012.00906.x.
[20]
Faria-Ribeiro M, Navarro R, González-Méijome JM. Effect of pupil size on wavefrontrefraction during orthokeratology. Optom Vis Sci, 2016, 93(11): 1399-1408. DOI: 10.1097/OPX. 0000000000000989.