Well ... remember pesticides are neurotoxins. The reality of permanent vision loss is such that a federal warning label was deemed necessary.
The movie referenced above about a woman who is attacked in her home was based on a play - both with the same title: "
Extremities." The intended victim turns the tables on her attacker, rendering him helpless and one of the things she did was spray him in the face with insecticide.
It is important to note here that it was nearby and opportune during a vicious attack.
The would-be victim manages to tie up her attacker and when her roommate comes home and friend comes over, the attacker manipulates the conversation like he was rather innocent and his victim lured him into being tied up which was followed by intentional, slow torture. Evidenced are his raw, blistered eyes and his inability to see.
His story is so compelling and his method so manipulative the friends begin to round on her as the attacker, as though there were something else she could have done.
I'm not about to spray insecticide in my eyes to figure out if it causes blindness or not - I'll trust the poison control center's warning of such.
Nevertheless, if it's the only thing in reach, then have at it ... just beware that if you make SURE it is in reach (on your desk, nightstand, kitchen counter, closet, car, purse, etcetera) you may be liable for something you don't want to go to prison for.