Peripheral refraction in myopia corrected with spectacles versus contact lenses
Peripheral refraction in myopia corrected with spectacles versus contact lenses
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DOI：
10.1111/j.1475-1313.2012.00912.x
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发表时间：
2012-07-01
影响因子：
2.9
通讯作者：
Phillips, John R.
中科院分区：
文献类型：
--
作者：
Backhouse, Simon;Fox, Stephanie;Phillips, John R.
引用资料：Backhouse S， Fox S, Ibrahim B & Phillips JR.。眼镜与隐形眼镜矫正近视的外周屈光。眼物理学报，2012,32(2):294303。doi: 10.1111 / j.1475-1313.2012.00912。【摘要】目的：既往研究认为外周视网膜的屈光状态影响近视的发生发展。我们的目的是比较同一组使用眼镜和软性隐形眼镜矫正的人眼的外周屈光度。方法：对10例中高度数（-5.00 D ~ -8.00 D）青少年近视患者进行调查。开场自折射用于测量眼睛在主凝视、未矫正和戴眼镜和隐形眼镜矫正时的轴上和离轴折射。在鼻视网膜和颞视网膜水平方向每隔5度至30度测量一次，并作为功率矢量（M、J0和J45）进行分析。在鼻视网膜和颞视网膜上进行10度和20度的轴向和离轴眼尺寸的部分相干干涉测量。结果：受试者平均年龄24岁，年龄范围1929岁，平均轴上平均球折射为-6.33 0.31 D（平均+/- 1 S.E.），平均眼轴长为25.99 +/- 0.20 mm。所有受试者的平均相对外周屈光度（RPR）在未矫正时为远视（+0.90 +/- 0.14 D），戴眼镜矫正时为+1.01 +/- 0.13 D)，而戴隐形眼镜矫正时为近视（-1.84 +/- 0.61 D）。矫正对周围屈光有非常显著的影响（p < 0.0001）。外周J0散光在隐形眼镜矫正后也显著变差（不符合规则）（p = 0.015），而J45散光保持不变。在轴上和离轴眼长测量显示一个相对延长的眼形。结论：常规球面镜片矫正中高度近视的轴向屈光不正可导致周围视网膜远视离焦。用传统的球形软性隐形眼镜矫正同一只眼睛会导致周围视网膜出现明显的近视离焦。这些结果证实了早期研究的一般发现和其他人对光学模型的预测。如果周围视网膜的屈光状态确实影响近视的进展，那么这些结果表明，佩戴常规隐形眼镜的近视进展应该比佩戴常规眼镜的近视进展要慢。然而，先前的研究比较了传统眼镜和传统隐形眼镜的近视进展，并没有发现这种差异。
Citation information: Backhouse S, Fox S, Ibrahim B & Phillips JR. Peripheral refraction in myopia corrected with spectacles versus contact lenses. Ophthalmic Physiol Opt 2012, 32, 294303. doi: 10.1111/j.1475-1313.2012.00912.x Abstract Purpose: Previous studies suggest that the refractive status of the peripheral retina can influence the development and progression of myopia. Our aim was to compare peripheral refractions in the same cohort of human eyes corrected with spectacle lenses vs soft contact lenses. Methods: Ten young adults with moderate to high myopia (-5.00 D to -8.00 D) were investigated. Open-field autorefraction was used to measure on- and off-axis refractions with the eyes in primary gaze, when uncorrected, and when corrected with spectacles and contact lenses. Measures were made every 5 degrees out to 30 degrees horizontally in nasal and temporal retina and analysed as power vectors (M, J0, and J45). Partial coherence interferometry measures of eye size were also made on-axis and off-axis at 10 degrees and 20 degrees in nasal and temporal retina. Results: Subjects (mean age 24; range 1929 years) had an average on-axis mean-sphere refraction of -6.33 0.31 D (mean +/- 1 S.E.) and an average axial eye length of 25.99 +/- 0.20 mm. The average relative peripheral refraction (RPR) for all subjects across all eccentricities was hyperopic when uncorrected (+0.90 +/- 0.14 D) and also when corrected with spectacles (+1.01 +/- 0.13 D) but changed to a myopic RPR when corrected with contact lenses (-1.84 +/- 0.61 D). There was a highly significant effect of correction on peripheral refraction (p < 0.0001). Peripheral J0 astigmatism also became significantly more negative (less with-the-rule) on correction with contact lenses (p = 0.015), whereas J45 astigmatism remained unchanged. On- and off- axis eye length measures indicated a relatively prolate eye shape. Conclusions: Correcting the on-axis refractive error in moderate to high myopia with conventional spherical spectacle lenses results in hyperopic defocus in the peripheral retina. Correcting the same eyes with conventional spherical soft contact lenses results in significant myopic defocus in the peripheral retina. These results corroborate the general findings of earlier studies and the predictions of optical modelling by others. If the refractive status of the peripheral retina does influence myopia progression, then these results suggest that myopia progression should be slower with conventional contact lens wear than with conventional spectacle wear. However, previous studies comparing myopia progression with conventional spectacles and conventional contact lenses have reported no such difference.