What is an offensive slang for blind? Like they can't see

One offensive slang term historically used for blind individuals is "blind as a bat." However, it's important to note that using derogatory or insensitivity language can perpetuate stigma and harm marginalized groups. It's always best to be respectful and considerate in our language choices. If you're discussing blindness or visual impairment, using accurate and respectful terminology is recommended.