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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT04666870
Other study ID # 2020-K-106
Secondary ID
Status Completed
Phase
First received
Last updated
Start date January 21, 2019
Est. completion date August 11, 2019

Study information

Verified date December 2020
Source Shanghai Guanghua Hospital of Integrated Traditional Chinese and Western Medicine
Contact n/a
Is FDA regulated No
Health authority
Study type Observational

Clinical Trial Summary

To investigate the relationship between axis length (AL) and refractive error. eyes of low hyperopia to emmetropia subjects, comprising eyes with moderate to high myopia (-11.00D ≤ SE ≤ -4.00D) were analyzed in this cross-sectional study. Cycloplegic refractive error was measured with the autorefractor, AL was measured with the IOL master. Association between AL and refractive error were evaluated by linear regression analysis. The mean of AL and its correlation with SE, sex, and age were evaluated.


Description:

To investigate the relationship between axis length (AL) and refractive error (RE). 894 eyes with low hyperopia to emmetropia (-0.50D ≤ spherical equivalent (SE) ≤ +2.00D), comprising 1007 eyes with moderate to high myopia (-11.00D ≤ SE ≤ -4.00D) were analyzed in this study. Cycloplegic RE was measured with the autorefractor, AL was measured with the IOL master. Association between AL and refractive error were evaluated by linear regression analysis. The mean of AL and its correlation with SE, sex, and age were evaluated.


Recruitment information / eligibility

Status Completed
Enrollment 1901
Est. completion date August 11, 2019
Est. primary completion date July 30, 2019
Accepts healthy volunteers No
Gender All
Age group 22 Years to 26 Years
Eligibility Inclusion Criteria: with moderate to high myopia (SE = -4.00D) without myopia (-0.50D = spherical power = +2.00D) no concurrent eye disease best corrected visual acuity is 1.0 Exclusion Criteria: significant systemic illnesses congenital myopia, media opacity uveitis glaucoma intraocular surgery refractive surgery neurologic diseases retinal disease

Study Design


Related Conditions & MeSH terms


Intervention

Other:
myopia or not myopia
visual acuity, IOL master biometry, the anterior segment with slit lamp, dilated fundus examination and refraction.

Locations

Country Name City State
China Shanghai Guanghua Integrated Traditional Chinese and Western Medicine Hospital Shanghai Shanghai

Sponsors (2)

Lead Sponsor Collaborator
Wang Hongxia Tianjin Eye Hospital

Country where clinical trial is conducted

China, 

References & Publications (16)

Battersby K, Koy L, Phillips N, Sim J, Wilk J, Schmid KL. Analysis of physical activity in emmetropic and myopic university students during semester and holiday periods: a pilot study. Clin Exp Optom. 2015 Nov;98(6):547-54. doi: 10.1111/cxo.12327. — View Citation

Dolgin E. The myopia boom. Nature. 2015 Mar 19;519(7543):276-8. doi: 10.1038/519276a. — View Citation

Holden BA, Fricke TR, Wilson DA, Jong M, Naidoo KS, Sankaridurg P, Wong TY, Naduvilath TJ, Resnikoff S. Global Prevalence of Myopia and High Myopia and Temporal Trends from 2000 through 2050. Ophthalmology. 2016 May;123(5):1036-42. doi: 10.1016/j.ophtha.2 — View Citation

Jonas JB, Ohno-Matsui K, Panda-Jonas S. Myopia: Anatomic Changes and Consequences for Its Etiology. Asia Pac J Ophthalmol (Phila). 2019 Sep-Oct;8(5):355-359. doi: 10.1097/01.APO.0000578944.25956.8b. Review. — View Citation

Kempen JH, Mitchell P, Lee KE, Tielsch JM, Broman AT, Taylor HR, Ikram MK, Congdon NG, O'Colmain BJ; Eye Diseases Prevalence Research Group. The prevalence of refractive errors among adults in the United States, Western Europe, and Australia. Arch Ophthal — View Citation

Mallen EA, Gammoh Y, Al-Bdour M, Sayegh FN. Refractive error and ocular biometry in Jordanian adults. Ophthalmic Physiol Opt. 2005 Jul;25(4):302-9. — View Citation

Morgan IG, Ohno-Matsui K, Saw SM. Myopia. Lancet. 2012 May 5;379(9827):1739-48. doi: 10.1016/S0140-6736(12)60272-4. Review. — View Citation

Mountjoy E, Davies NM, Plotnikov D, Smith GD, Rodriguez S, Williams CE, Guggenheim JA, Atan D. Education and myopia: assessing the direction of causality by mendelian randomisation. BMJ. 2018 Jun 6;361:k2022. doi: 10.1136/bmj.k2022. Erratum in: BMJ. 2018 — View Citation

Ohno-Matsui K, Lai TY, Lai CC, Cheung CM. Updates of pathologic myopia. Prog Retin Eye Res. 2016 May;52:156-87. doi: 10.1016/j.preteyeres.2015.12.001. Epub 2016 Jan 6. Review. — View Citation

Paluru P, Ronan SM, Heon E, Devoto M, Wildenberg SC, Scavello G, Holleschau A, Mäkitie O, Cole WG, King RA, Young TL. New locus for autosomal dominant high myopia maps to the long arm of chromosome 17. Invest Ophthalmol Vis Sci. 2003 May;44(5):1830-6. — View Citation

Richter GM, Wang M, Jiang X, Wu S, Wang D, Torres M, Choudhury F, Varma R; Chinese American Eye Study Group. Ocular Determinants of Refractive Error and Its Age- and Sex-Related Variations in the Chinese American Eye Study. JAMA Ophthalmol. 2017 Jul 1;135 — View Citation

Rozema JJ, Sun W, Wu JF, Jiang WJ, Wu H, Lu TL, Hu YY, Chen R, Guo DD, Wang XR, Dankert S, Jonas JB, Iribarren R, Tian QM, Bi HS. Differences in ocular biometry between urban and rural children matched by refractive error: the Shandong Children Eye Study. — View Citation

Spillmann L. Stopping the rise of myopia in Asia. Graefes Arch Clin Exp Ophthalmol. 2020 May;258(5):943-959. doi: 10.1007/s00417-019-04555-0. Epub 2019 Dec 23. Review. — View Citation

Tideman JWL, Polling JR, Jaddoe VWV, Vingerling JR, Klaver CCW. Growth in foetal life, infancy, and early childhood and the association with ocular biometry. Ophthalmic Physiol Opt. 2019 Jul;39(4):245-252. doi: 10.1111/opo.12630. — View Citation

Wang J, Ying GS, Fu X, Zhang R, Meng J, Gu F, Li J. Prevalence of myopia and vision impairment in school students in Eastern China. BMC Ophthalmol. 2020 Jan 2;20(1):2. doi: 10.1186/s12886-019-1281-0. — View Citation

Zadnik K, Mutti DO, Mitchell GL, Jones LA, Burr D, Moeschberger ML. Normal eye growth in emmetropic schoolchildren. Optom Vis Sci. 2004 Nov;81(11):819-28. — View Citation

* Note: There are 16 references in allClick here to view all references

Outcome

Type Measure Description Time frame Safety issue
Primary Axis length Axis length change from baseline at 6 months from baseline at 6 months
Primary Refractive Error Refractive Error change from baseline at 6 months from baseline at 6 months
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