Singman Eric, Matta Noelle, Tian Jing, Silbert David
Wilmer Eye Institute, Baltimore, Maryland, USA.
Strabismus. 2013 Jun;21(2):137-9. doi: 10.3109/09273972.2013.786737.
To evaluate the relationship between amblyopia and accommodative ability.
The open-field Grand Seiko binocular autorefractor has become the gold standard for automated measurement of static accommodation. We measured the accommodation amplitudes in 52 children ages 3 to 14 years employing the Grand Seiko auto refractor. Children wore their glasses for this test, which was prescribed based on a cycloplegic refraction performed by one pediatric ophthalmologist. No readings could be obtained for 9 eyes (5 patients).
Normal accommodation with correction utilizing full accommodative effort at 1/3 meter is 3D assuming no accommodative lag, and would generate a reading of -3.00D from the Grand Seiko auto refractor. Lack of any accommodative should give a reading of 0.00D. Accommodative gradually declined as the acuity worsened.
Our results suggest that amblyopic eyes do not accommodate as well as non-amblyopic eyes. Because accommodation amplitude is not subjective it may be a more sensitive indicator of regression of amblyopia than visual acuity. The Grand Seiko autorefractor could prove to be a useful tool to monitor the progress of patients with amblyopia.
评估弱视与调节能力之间的关系。
开放视野的精工双目自动验光仪已成为静态调节自动测量的金标准。我们使用精工自动验光仪测量了52名3至14岁儿童的调节幅度。孩子们在这项测试中戴着眼镜，眼镜是根据一位儿科眼科医生进行的睫状肌麻痹验光结果开具的。9只眼睛（5名患者）无法获得读数。
假设无调节滞后，在1/3米处充分利用调节力进行矫正时的正常调节为3D，精工自动验光仪会给出-3.00D的读数。完全没有调节时读数应为0.00D。随着视力恶化，调节能力逐渐下降。
我们的结果表明，弱视眼的调节能力不如非弱视眼。由于调节幅度不是主观的，它可能是比视力更敏感的弱视恢复指标。精工自动验光仪可能被证明是监测弱视患者病情进展的有用工具。
