<prompt> Infection within the right cavernous sinus results in the following signs except:Constricted pupils in response to lightEngorgement of retinal veinsPtosis of right eyelidRight ophthalmoplegia  <response>: a Constricted pupils in response to light Ref. Cummings, 6th ed., 174In cavernous sinus thrombosis pupils are dilated and fixed due to the involvement of 3rd nerve and stimulation of sympathetic plexus. 