Ask an Eye Doctor and Get an Answer ASAP
Hello this is Dr. Stan and I will assist you with your question today. I am board certified and I have 40 years of patient experience. I am happy to help you.
If by "prism" are you referring to vision or are you referring to priapism of your penis?
Priapism is an erection lasting more than 4 hours.
Could you please elaborate your question.
Thanks for using Just Answer.