Marks in cats eye and pupil change

my 9-10 year old male cat random got this black mark in his eye a few months ago, it’s only changed slightly but I also noticed his pupil shape seems a little weird. The bottom of it is pointed when the pupils are big and while small that point seems to curve to the side a bit.

Hello and thankyou for these well captured and interesting photos.  The lesion sounds to be progressive and while it might be  a cyst in the anterior chamber- the area beteeen the lens and the pupil - it could also be cancer, or a change relating to changing conditions eg pressures in the eye.   I feel that your vet should triage it and if unsure, may refer you to an opthalmologist.  Wishing you both all the best.