Drasdo N
Am J Optom Physiol Opt. 1976 Sep;53(9 Pt 1):464-7. doi: 10.1097/00006324-197609010-00005.
Diminishing telescope systems designed to widen the field of view of patients with tunnel vision are described. Theoretical analysis suggests that telescope systems will greatly improve visual search times and diminish the difficulties of such patients. This can be considered quantitatively, and it is suggested that the optimum amount of minifying power can be calculated by applying established formulations on visual efficiency. The inadequacies of previous designs have inhibited development, and further improvements to bioptic systems may be necessary before the final assessment of the clinical value of these devices can be made.
本文描述了旨在扩大管状视野患者视野范围的缩小型望远镜系统。理论分析表明，望远镜系统将大大缩短视觉搜索时间，并减少此类患者的困难。这可以进行定量分析，并且有人建议，可以通过应用已确立的视觉效率公式来计算最佳缩小倍率。先前设计的不足之处阻碍了发展，在对这些设备的临床价值进行最终评估之前，可能需要对双目视觉系统进行进一步改进。
