仓鸮（Strix aluco L.）的视野

The visual fields of the tawny owl, Strix aluco L.

作者信息

Martin G R

出版信息

Vision Res. 1984;24(12):1739-51. doi: 10.1016/0042-6989(84)90005-1.

Abstract

The uniocular retinal field of Strix aluco is highly asymmetrical. The maximum width of 124 degrees is less than that recorded in any other vertebrate. Maximum retinal binocular field width equals 48 degrees and the optic axes diverge by 55 degrees. Maximum binocularity occurs above the bill whose tip lies outside of the visual field. The cyclopean retinal field has a maximum width of 201 degrees. Limited data on the visual fields of the pigeon are also presented. All of these data are compared with visual field widths in other species and the significance of the owl eye's tubular shape, its nasad asymmetry, and the possible factors influencing binocular field width are discussed.

摘要

仓鸮的单眼视网膜视野高度不对称。124度的最大宽度小于其他任何脊椎动物的记录值。最大视网膜双眼视野宽度等于48度，视轴发散55度。最大双眼视野出现在喙的上方，喙尖位于视野之外。独眼视网膜视野的最大宽度为201度。还给出了鸽子视野的有限数据。所有这些数据都与其他物种的视野宽度进行了比较，并讨论了猫头鹰眼睛管状形状、其鼻侧不对称以及影响双眼视野宽度的可能因素的意义。