Abstract
1. Maxwell's spot has been investigated by means of Motokawa's method of electrostimulation of the eye in comparison with sensory structures of the spot.2. It was shown that the extent and the inner structure concerning colouration of Maxwell's spot were determined by the spatial distribution of the red and the blue processes which were elicited by exploring light from a purple filter, Wratten no. 2389.3. Protanopes perceived Maxwell's spot and in agreement with this, the distribution of the retinal processes in the fovea and thereabout was shown to be uneven.4. On the contrary, deuteranopes could not perceive any Maxwell's spot, and their retinal processes were found to be distributed uniformly in the fovea.5. Based upon these findings and other anatomical data, the widely believed hypothesis that Maxwell's spot is due to selective absorption of blue light by macular pigment was rejected, and instead, Walls' new hypothesis of non-uniform distribution of receptor types was accepted.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
