Breton M E, Nelson L B
Surv Ophthalmol. 1983 Mar-Apr;27(5):306-12. doi: 10.1016/0039-6257(83)90230-8.
Recent research on classical red-green blind observers has shown that complete dichromacy may be present only under conditions where the viewing angle is small. For viewing angles greater than about 4 degrees, both rods and an anomalous cone have been shown to underlie a weak form of trichromacy. The conditions for rod or anomalous cone mediation of this trichromacy have also been shown to depend on the overall viewing luminance. These data taken together prompt a rethinking of the classical view of red-green dichromacy and lead to new considerations of the color discrimination performance of dichromatic candidates. In this paper we review the recent research on the presence of trichromatic abilities in classical dichromats and we relate these findings to the needs of the clinician, especially in the screening of young children.
最近对典型红绿色盲观察者的研究表明，只有在视角较小的情况下才可能存在完全二色性。对于大于约4度的视角，已证明视杆细胞和一种异常视锥细胞是一种弱形式三色性的基础。这种三色性的视杆细胞或异常视锥细胞介导条件也已证明取决于整体观察亮度。这些数据综合起来促使人们重新思考红绿色二色性的经典观点，并引发了对二色性候选者颜色辨别性能的新思考。在本文中，我们回顾了近期关于典型二色视者中三色性能力存在情况的研究，并将这些发现与临床医生的需求相关联，尤其是在幼儿筛查方面。
