Clinical trial NCT05740930: Effectiveness and Safety of Partition Multi-point Defocused Myopia Management Spectacle Lens in Myopia Control
Official title: Effectiveness and Safety of Partition Multi-point Defocused Myopia Management Spectacle Lens in Myopia Control Compared With Spectacle Lenses With Aspherical Lenslets: a Randomised Non-inferiority Trial
Study type: INTERVENTIONAL
Overall status: ACTIVE_NOT_RECRUITING
Phase: NA
Conditions: Myopia
Keywords: Partition multi-point defocused
Myopia control
Lead sponsor: Zhongshan Ophthalmic Center, Sun Yat-sen University
Sponsor class: OTHER
First posted: 2023-02-23
Enrollment: 194
Sex: ALL
Minimum age (years): 8
Maximum age (years): 13
Standard ages: CHILD
Accepts healthy volunteers: no
Allocation: RANDOMIZED
Intervention model: PARALLEL
Primary purpose: PREVENTION

Brief summary: Myopia is considered to be the most common type of refractive error, and the incidence of myopia has shown a trend of low age. Recent studies found that the new aspheric microlens spectacle lens can more effectively control the progress of diopter than the single-vision spectcale lens. A new technology of equivalent defocusing around the lens called the partition multi-point defocus optical technology is adopted in this study.

Detailed description: Myopia is considered to be the most common type of refractive error, and it has increased rapidly worldwide. The vision damage caused by uncorrected myopia seriously affects the quality of life, may lead to poor academic performance of children, and cause considerable economic burden. About 90% of vision damage caused by myopia can be prevented by cost-effective interventions or treatment.

In recent years, the incidence of myopia has shown a trend of low age. Therefore, clinical intervention should be carried out in the childhood stage, which is the key period of eye development, to control the progress of myopia. A recent 2-year randomized controlled study in China found that the new aspheric microlens myopia control spectacle lens can more effectively control the progress of diopter than the single-vision spectcale lens. Different studies have found or proved the technical principle of the new aspheric defocusing microlens.

Animal experiments found that the direction, intensity and regional distribution of optical defocus signals have a substantial impact on the growth of eyes; The diopter of peripheral relative hyperopia can affect the central myopia; The changes of myopia and optical defocus in the nasal and temporal regions can change the shape and peripheral refraction of the eyes; Local changes in the effective focus of the eye will lead to regional changes in eye growth and refractive error. Based on the findings of animal experiments, the new technology of equivalent defocusing around the lens called the partition multi-point defocus optical technology is adopted in this study.

A prospective, single-center, open-label, non-inferiority randomized controlled trial is developed to evaluate the effectiveness and safety of partition multi-point defocused myopia management spectacle lens among children in China in myopia control.

Eligibility criteria: Inclusion Criteria:

* Aged 8 to 13 years;
* Under the condition of bilateral cycloplegic autorefraction, the spherical refractive error of -0.75 to -4.75 D in each eye and astigmatism of not more than 1.50 D and anisometropia of not more than 1.00 D;
* Best-corrected visual acuity of equal or better than 0.00 LogMAR (\>= 1.0 as Snellen).
* The intraocular pressure of 10 to 21mmHg.
* Volunteer to participate in this clinical trial with signature of the informed consent form.

Exclusion Criteria:

* History of eye injury or intraocular surgery;
* Clinically abnormal slit-lamp findings
* Abnormal fundus examination
* Ocular disease, such as uveitis and other inflammatory diseases, glaucoma, cataract, fundus diseases, eye tumors, dominant strabismus, and any eye diseases that affect visual function;
* Systemic diseases causing low immunity (such as diabetes, Down's syndrome, rheumatoid arthritis, psychotic patients or other diseases that researchers think are not suitable for wearing glasses);
* Participation of the drug clinical trial within three month and the device clinical trial within one month;
* Only one eye meets the inclusion criteria;
* Unable to have regular follow-up
* Participation of any myopia control clinical research trial within three months, and currently using rigid contact lenses (including nursing products), multifocal contact lenses, progressive multifocal lenses and other specially designed myopia control lenses, atropine drugs, etc.

Primary outcomes:
measure: Changes of spherical equivalent refraction (SER) at two years
timeFrame: 2 years
Secondary outcomes:
measure: Changes of axial length (AL) at two years
timeFrame: 2 years
measure: Change of anterior chamber depth (ACD) at two years
timeFrame: 2 years
measure: Change of lens thickness (LT) at two years
timeFrame: 2 years
measure: Change of corneal power (CP) at two years
timeFrame: 2 years
measure: Best corrected visual acuity at two years
timeFrame: 2 years
measure: Binocular visual function at two years
timeFrame: 2 years
measure: Choroidal thickness at two years
timeFrame: 2 years
measure: Visual scale score at six months
timeFrame: 6 months
measure: Visual scale score at two years
timeFrame: 2 years
measure: Time length of wearing spectcales at two years
timeFrame: 2 years
measure: Safty of wearing the spectacle lens
timeFrame: 2 years
Other outcomes:
Locations:
city: Guangzhou
country: China
facility: Zhongshan Ophthalmic Center, Sun Yat-sen University
state: Guangdong
Study officials:
affiliation: Zhongshan Ophthalmic Center, Sun Yat-sen University
name: Yangfa Zeng
role: PRINCIPAL_INVESTIGATOR
References:
citation: Fricke TR, Holden BA, Wilson DA, Schlenther G, Naidoo KS, Resnikoff S, Frick KD. Global cost of correcting vision impairment from uncorrected refractive error. Bull World Health Organ. 2012 Oct 1;90(10):728-38. doi: 10.2471/BLT.12.104034. Epub 2012 Jul 12.
citation: Modjtahedi BS, Abbott RL, Fong DS, Lum F, Tan D; Task Force on Myopia. Reducing the Global Burden of Myopia by Delaying the Onset of Myopia and Reducing Myopic Progression in Children: The Academy's Task Force on Myopia. Ophthalmology. 2021 Jun;128(6):816-826. doi: 10.1016/j.ophtha.2020.10.040. Epub 2020 Dec 30.
citation: Rose K, Harper R, Tromans C, Waterman C, Goldberg D, Haggerty C, Tullo A. Quality of life in myopia. Br J Ophthalmol. 2000 Sep;84(9):1031-4. doi: 10.1136/bjo.84.9.1031.
citation: Naidoo KS, Fricke TR, Frick KD, Jong M, Naduvilath TJ, Resnikoff S, Sankaridurg P. Potential Lost Productivity Resulting from the Global Burden of Myopia: Systematic Review, Meta-analysis, and Modeling. Ophthalmology. 2019 Mar;126(3):338-346. doi: 10.1016/j.ophtha.2018.10.029. Epub 2018 Oct 17.
citation: Burton MJ, Ramke J, Marques AP, Bourne RRA, Congdon N, Jones I, Ah Tong BAM, Arunga S, Bachani D, Bascaran C, Bastawrous A, Blanchet K, Braithwaite T, Buchan JC, Cairns J, Cama A, Chagunda M, Chuluunkhuu C, Cooper A, Crofts-Lawrence J, Dean WH, Denniston AK, Ehrlich JR, Emerson PM, Evans JR, Frick KD, Friedman DS, Furtado JM, Gichangi MM, Gichuhi S, Gilbert SS, Gurung R, Habtamu E, Holland P, Jonas JB, Keane PA, Keay L, Khanna RC, Khaw PT, Kuper H, Kyari F, Lansingh VC, Mactaggart I, Mafwiri MM, Mathenge W, McCormick I, Morjaria P, Mowatt L, Muirhead D, Murthy GVS, Mwangi N, Patel DB, Peto T, Qureshi BM, Salomao SR, Sarah V, Shilio BR, Solomon AW, Swenor BK, Taylor HR, Wang N, Webson A, West SK, Wong TY, Wormald R, Yasmin S, Yusufu M, Silva JC, Resnikoff S, Ravilla T, Gilbert CE, Foster A, Faal HB. The Lancet Global Health Commission on Global Eye Health: vision beyond 2020. Lancet Glob Health. 2021 Apr;9(4):e489-e551. doi: 10.1016/S2214-109X(20)30488-5. Epub 2021 Feb 16. No abstract available.
citation: He M, Zheng Y, Xiang F. Prevalence of myopia in urban and rural children in mainland China. Optom Vis Sci. 2009 Jan;86(1):40-4. doi: 10.1097/OPX.0b013e3181940719.
citation: Wildsoet CF, Chia A, Cho P, Guggenheim JA, Polling JR, Read S, Sankaridurg P, Saw SM, Trier K, Walline JJ, Wu PC, Wolffsohn JS. IMI - Interventions Myopia Institute: Interventions for Controlling Myopia Onset and Progression Report. Invest Ophthalmol Vis Sci. 2019 Feb 28;60(3):M106-M131. doi: 10.1167/iovs.18-25958.
citation: Bao J, Yang A, Huang Y, Li X, Pan Y, Ding C, Lim EW, Zheng J, Spiegel DP, Drobe B, Lu F, Chen H. One-year myopia control efficacy of spectacle lenses with aspherical lenslets. Br J Ophthalmol. 2022 Aug;106(8):1171-1176. doi: 10.1136/bjophthalmol-2020-318367. Epub 2021 Apr 2.
citation: Smith EL 3rd, Hung LF. The role of optical defocus in regulating refractive development in infant monkeys. Vision Res. 1999 Apr;39(8):1415-35. doi: 10.1016/s0042-6989(98)00229-6.
citation: Wallman J, Gottlieb MD, Rajaram V, Fugate-Wentzek LA. Local retinal regions control local eye growth and myopia. Science. 1987 Jul 3;237(4810):73-7. doi: 10.1126/science.3603011.
citation: Huang J, Hung LF, Smith EL 3rd. Recovery of peripheral refractive errors and ocular shape in rhesus monkeys (Macaca mulatta) with experimentally induced myopia. Vision Res. 2012 Nov 15;73:30-9. doi: 10.1016/j.visres.2012.09.002. Epub 2012 Sep 28.
citation: Smith EL 3rd, Hung LF, Huang J, Blasdel TL, Humbird TL, Bockhorst KH. Effects of optical defocus on refractive development in monkeys: evidence for local, regionally selective mechanisms. Invest Ophthalmol Vis Sci. 2010 Aug;51(8):3864-73. doi: 10.1167/iovs.09-4969. Epub 2010 Mar 10.
citation: Smith EL 3rd, Hung LF, Huang J, Arumugam B. Effects of local myopic defocus on refractive development in monkeys. Optom Vis Sci. 2013 Nov;90(11):1176-86. doi: 10.1097/OPX.0000000000000038.