Molecular aspects of photoreceptor function

The description of the molecular processes which underlie visual excitation is the fundamental problem in understanding vision at the level of a single photoreceptor. Thus far only a general outline of photoreceptor function has emerged with little known about actual biochemical and biophysical mechanisms.

对构成视觉兴奋基础的分子过程的描述，是在单个光感受器层面理解视觉的根本问题。到目前为止，仅出现了光感受器功能的大致轮廓，而对实际的生物化学和生物物理机制知之甚少。