Bullimore M A, Gilmartin B, Royston J M
University of California, School of Optometry, Berkeley 94720.
Doc Ophthalmol. 1992;80(2):143-55. doi: 10.1007/BF00161240.
The steady-state accommodative responses of emmetropes and late-onset myopes was measured for an array of numbers located at -1, -3 and -5 dioptres using an objective infra-red optometer. Responses were compared for passive (reading numbers) and active (adding numbers) conditions. For the passive condition, the late-onset myopes showed a significantly lower accommodative response than the emmetropic group. No significant differences were found between the two groups for the active condition. Ocular biometric characteristics were also measured in emmetropes, late-onset myopes and early-onset myopes using keratometry and ultrasonography. No significant differences in corneal curvature, anterior chamber depth and crystalline lens thickness were found between the groups. Late-onset myopes exhibited significantly deeper vitreous chambers than emmetropes, which more than accounted for the difference in refractive error between the two refractive groups. We conclude that, while significant differences exist in the accommodative responses of late-onset myopes and emmetropes, late-onset myopia is due predominantly to elongation of the vitreous chamber.
使用客观红外验光仪，针对位于-1、-3和-5屈光度的一系列数字，测量正视眼和迟发性近视患者的稳态调节反应。比较了被动（阅读数字）和主动（增加数字）条件下的反应。在被动条件下，迟发性近视患者的调节反应明显低于正视眼组。在主动条件下，两组之间未发现显著差异。还使用角膜曲率计和超声检查测量了正视眼、迟发性近视患者和早发性近视患者的眼部生物特征。各组之间在角膜曲率、前房深度和晶状体厚度方面未发现显著差异。迟发性近视患者的玻璃体腔明显比正视眼深，这足以解释两个屈光组之间屈光不正的差异。我们得出结论，虽然迟发性近视患者和正视眼的调节反应存在显著差异，但迟发性近视主要是由于玻璃体腔延长所致。
