I certainly do not think blindness would be considered a "mental defect" that would disqualify him. Neither would blindness immunize him from having to protect himself. I wonder what other provisions of the Constitution the county prosecutor believes should be suspended for blind people.
http://www.lohud.com/article/20100813/NEWS/8130373/-1/newsfront/Prosecutor--No-guns-for-blind-manQuote:
Prosecutor: No guns for blind man
August 13, 2010
MORRISTOWN, N.J. (AP) — New Jersey prosecutors say a blind man should not have the right to bear arms because he doesn't safely store his guns.
But Steven Hopler's lawyer argued in court in Morris County Thursday that there are no laws on how guns should be stored in private homes.
A court in 1994 allowed Hopler to purchase firearms and shoot them under strict conditions.
Prosecutors argued Hopler keeps the weapons in an unsafe manner throughout his home and shot himself while cleaning a gun in 2008.
The judge raised concerns about Hopler's habit of leaving loaded guns around his home. But the judge noted the former truck driver lives alone and even police officers have shot themselves while cleaning weapons.
The judge expects to issue a ruling on Aug. 19.