You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is 48 year old male develops lesion affecting his autonomic system supplying the eye. which of the following clinical condition are true about his pupillary movements ? and explain in detail?
Lesion in autonomic system will affect both the sympthetic and parasympthetic systems : Pupil dilation occurs by sympatheticfibersinnervating pupillodilator muscle fibers. Pupil constriction is achieved by parasympathetic fibers. When there occurs a lesion in both the pathways, there will be no net effect, as there is no dilation or constriction, so the pupil will appear normal in size The pupils normal response to light is constriction, which is also absent here as the parasympathetic fibers responsible for constriction are also affected.