Shorten Myopic Axial Length with Repeated Low-lever Laser Light Therapy

Z. Lei, Qiu Kaikai, W. Bruce
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Abstract

Purpose: This study was to confirm that repeated low-lever laser light therapy (LLLT) could control myopic axial length (AL) elongation. Methods: Twenty myopia, 5 to 13 years old, were included in this study. All subjects kept daily repeated therapy with LLLT for mean 3 months; According to the baseline AL (> 24.40 mm or not), and ages (> 10 years old or not), we built two age groups and two AL groups. The AL between baseline and follow-up as well as different groups were all tested by SPSS 26.0, respectively. Results: 85% and 75% of AL were shortened for the right and left compared with those of baseline, respectively. The follow-up right and left AL were both significantly shortened (P=.002, P=.003, respectively) from baseline mean right AL 24.52 ± 1.01 mm, left AL 24.51 ± 0.96 mm, to 24.41 ± 0.98 mm (-0.11 mm right AL shortened amount) and 24.42 ± 0.93 (-0.09 mm left AL shortened amount), respectively. Long baseline AL group was significantly (P=.02, P=.03) shortened more AL than those of small baseline AL group for both right and left AL (-0.17 mm versus -0.05 mm, P <.001, respectively). From age group aspect, although it was also significant difference changed (shortened) for right AL (P=.008), but not for left AL (P=.051). Conclusions: LLLT could control myopia axial length progression.
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重复低水平激光治疗近视眼轴长缩短
目的:研究反复低强度激光治疗(LLLT)对近视眼轴长(AL)伸长的控制作用。方法:选取20例5 ~ 13岁近视儿童作为研究对象。所有受试者每天使用LLLT重复治疗,平均3个月;根据基线AL (bb0≥24.40 mm)和年龄(bb1≥10岁)分为2个年龄组和2个AL组。基线与随访、组间AL均采用SPSS 26.0软件进行统计分析。结果:与基线相比,右侧AL缩短85%,左侧AL缩短75%。随访左、右AL均明显缩短(P=。002, P =。003),从基线平均右侧AL为24.52±1.01 mm,左侧AL为24.51±0.96 mm,分别降至24.41±0.98 mm(右侧AL缩短-0.11 mm)和24.42±0.93 mm(左侧AL缩短-0.09 mm)。长基线AL组显著(P=。02, P=.03)左、右AL均比基线AL小组缩短(-0.17 mm比-0.05 mm, P <。001年,分别)。从年龄组来看,虽然右侧AL也有显著差异(缩短)(P= 0.008),但左侧AL无显著差异(P= 0.051)。结论:LLLT可控制近视眼轴长进展。
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