The Effect of Relative Corneal Refractive Power Shift Distribution on Axial Length Growth in Myopic Children Undergoing Orthokeratology Treatment

角膜塑形术 眼科 数学 线性回归 角膜 光学 医学 物理 统计
作者
Xiaoyan Yang,Hua Bi,Lihua Li,Shumao Li,Song Chen,Bin Zhang,Yan Wang
出处
期刊:Current Eye Research [Taylor & Francis]
卷期号:46 (5): 657-665 被引量:21
标识
DOI:10.1080/02713683.2020.1820528
摘要

To quantify the spatial distribution of relative corneal refractive power shift (RCRPS) to investigate its association with axial length growth.Eighty myopic children were randomly assigned for fitting with type A or B lenses. Axial lengths and corneal topographies were measured at baseline and the 1-, 6-, and 12-months follow-up visits. Treatment-zone decentrations and sizes were derived from tangential maps. RCRPSs were computed by taking the difference between after-treatment and baseline axial maps and then subtracting the apex value. Values at the same radius were averaged to obtain an RCRPS profile, from which four distributional parameters were extracted: the peak value (Rmax), the location where the profile first reached its half peak (X50), and the powers summed within 4- and 8-mm diameter areas (Sum4 and Sum8, respectively). Linear mixed models were used to analyse the correlation between the AL growth and the distributional parameters.At baseline, no significant differences were observed between the two groups. After treatment, Axial length growth was significantly smaller in subjects fitted with type-B lenses (0.15 ± 0.16 vs 0.25 ± 0.22 mm, P = .028). Smaller treatment-zones (1.56 ± 0.14 vs 1.75 ± 0.13 mm, P < .01), smaller X50 values (1.56 ± 0.39 vs 1.98 ± 0.28 mm, P < .01), and greater Sum4 values (11.83 ± 6.47 vs 8.14 ± 5.06 D, P = .01) were also observed in subjects wearing type-B lenses. Among the distributional parameters, only X50 was significantly associated with AL growth in the multiple regression analysis (P = .005).The spatial distribution of RCRPS is critical in retarding AL growth, and the ones reaching peak within a shorter distance from the apex may provide better myopia control.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
更新
PDF的下载单位、IP信息已删除 (2025-6-4)

科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
刚刚
活力的秋莲完成签到,获得积分10
刚刚
ljxx发布了新的文献求助10
1秒前
SYLH应助刘强采纳,获得10
2秒前
pluto应助奋斗小公主采纳,获得10
2秒前
LLLLXR发布了新的文献求助10
2秒前
2秒前
小乐应助zhengmin采纳,获得30
3秒前
3秒前
4秒前
楚江南完成签到,获得积分10
4秒前
我爱亲柠檬完成签到,获得积分10
4秒前
5秒前
loomcool完成签到,获得积分10
5秒前
5秒前
郭泓嵩完成签到,获得积分10
6秒前
王倩的老公完成签到 ,获得积分10
6秒前
张星星完成签到 ,获得积分10
6秒前
vv发布了新的文献求助10
6秒前
刻苦熠彤关注了科研通微信公众号
6秒前
Jay发布了新的文献求助10
7秒前
7秒前
aaa完成签到,获得积分20
7秒前
666应助淡然的衣采纳,获得10
8秒前
LLLLXR完成签到,获得积分10
8秒前
9秒前
9秒前
xiaoguai完成签到 ,获得积分10
9秒前
9秒前
sjh完成签到,获得积分10
10秒前
chaoschen完成签到,获得积分10
10秒前
syz完成签到,获得积分10
10秒前
佳佳应助儿学化学打断腿采纳,获得20
10秒前
11秒前
幸运的羔羊完成签到,获得积分10
11秒前
Gump发布了新的文献求助10
12秒前
水上书发布了新的文献求助10
12秒前
欣慰外套完成签到 ,获得积分10
13秒前
13秒前
嗯嗯完成签到 ,获得积分10
14秒前
高分求助中
A new approach to the extrapolation of accelerated life test data 1000
Cognitive Neuroscience: The Biology of the Mind 1000
Technical Brochure TB 814: LPIT applications in HV gas insulated switchgear 1000
ACSM’s Guidelines for Exercise Testing and Prescription, 12th edition 500
Picture Books with Same-sex Parented Families: Unintentional Censorship 500
Nucleophilic substitution in azasydnone-modified dinitroanisoles 500
不知道标题是什么 500
热门求助领域 (近24小时)
化学 材料科学 医学 生物 工程类 有机化学 生物化学 物理 内科学 纳米技术 计算机科学 化学工程 复合材料 遗传学 基因 物理化学 催化作用 冶金 细胞生物学 免疫学
热门帖子
关注 科研通微信公众号,转发送积分 3969383
求助须知:如何正确求助?哪些是违规求助? 3514211
关于积分的说明 11172730
捐赠科研通 3249476
什么是DOI,文献DOI怎么找? 1794909
邀请新用户注册赠送积分活动 875441
科研通“疑难数据库(出版商)”最低求助积分说明 804827