ROCKAWAY, N.J. — Judging by what the authorities say about him, Steven Hopler has really been testing the limits of the Second Amendment.

Mr. Hopler, 49, who lives on a winding road here, is once again fighting for his right to keep and bear arms despite having been totally blind for most of his adult life. He has repeatedly persuaded judges to let him keep his collection of more than a dozen handguns, but doing so has been more complicated since 2008, when he was handling a .357 Magnum he owned and shot himself in the shin.

While he was in the hospital recovering, a burglar stole some of his guns. The authorities grew concerned that Mr. Hopler, who lost his eyesight because of diabetes, could not safely maintain his collection. When the police came to investigate the burglary, they found one loaded pistol in an oven mitt and another gun tucked under a sofa cushion. And one of the stolen guns, the police learned, was used in a suicide in Passaic.

Now the Morris County prosecutor’s office is trying again to have Mr. Hopler’s permits for all of his guns revoked. In the first day of a court hearing that began last week, Catherine Broderick, an assistant prosecutor, argued that Mr. Hopler had proven himself unfit to own guns and not just because he was blind. She and the police have also questioned whether Mr. Hopler had a drinking problem.