This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Forensic Medicine
A 40 YR OLD MAN , WORKING IN FARM PRESENTED WITH HEADACHE MALASIE SENSE OF TIGHTNESS DIMNESS OF VISION . ON EXAMINATION PUPILS WERE SHOWN AS BELOW ? WHAT IS TH EDIAGNOSIS ? 
Select and explain. 
A. LEAD POISONING, B. ORGANO PHOSPHOROUS, C. NICKLE POISONING, D. COCIANE
B: ORGANO PHOSPHOROUS
Answer: B: ORGANO PHOSPHOROUS 
Explanation: REF : NARAYANA REDDY