单侧佩戴棱镜压载软性环曲面接触镜引起的垂直不平衡。

Vertical imbalance induced by prism-ballasted soft toric contact lenses fitted unilaterally.

作者信息

Nilsson M, Stevenson S B, Leach N, Bergmanson J P, Brautaset R L

机构信息

Unit of Optometry, Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden.

出版信息

Ophthalmic Physiol Opt. 2008 Mar;28(2):157-62. doi: 10.1111/j.1475-1313.2008.00538.x.

DOI:10.1111/j.1475-1313.2008.00538.x

PMID:18339047

Abstract

Fitting a prism-ballasted soft toric contact lens unilaterally may potentially induce a vergence error that the subject cannot compensate. In the present study, a prism-ballasted (1.5Delta base down) soft toric contact lens was fitted in the right eye only of 10 subjects with normal binocular vision. The effect on binocular vision was evaluated by measuring vertical phoria adaptation and vertical fixation disparity adaptation. The results show that the vertical vergence error induced was well compensated and fully adapted to. However, care might be needed when fitting these lenses unilaterally in subjects with vertical phoria-related problems.

摘要

单侧佩戴棱镜稳定型软性环曲面角膜接触镜可能会引起受试者无法代偿的聚散误差。在本研究中，仅在10名双眼视觉正常的受试者右眼佩戴了棱镜稳定型（1.5Δ基底向下）软性环曲面角膜接触镜。通过测量垂直隐斜适应和垂直注视差异适应来评估对双眼视觉的影响。结果表明，所引起的垂直聚散误差得到了很好的代偿且完全适应。然而，在有垂直隐斜相关问题的受试者中单侧佩戴这些镜片时可能需要谨慎。