As Bill Cosby's sexual assault case continues to intensify, apparently so does his vision and memory. According to his attorneys, the former TV dad is now offiicially "legally blind" and his memory has "substantially declined," making it difficult for him to defend himself and identify his accusers.

According to People, his lawyers detailed the comedian's difficulties in a 13-page brief late on Thursday.

"How can a 79-year-old blind man defend himself against a claim that he sexually assaulted someone he supposedly met once, half a century ago?" the brief, filed by Cosby's attornys Brian McMonagle and Angela Agrusa.

They continued to attempt to justify that it is practically impossible for Cosby to identify his accusers given the current state of his vision.

"The answer is simple: He cannot, and the Commonwealth knows he cannot... Without his eyesight, Mr. Cosby cannot even determine whether he has ever even seen some of his accusers, let alone develop defenses and gather exculpatory evidence," the brief stated. "Moreover, Mr. Cosby's memory has substantially declined in the last decade."

According to the filing, Cosby has registered with the Massachusetts Commission for the Blind, and a copy of this report will be introduced during the November 1, 2016, hearing on the high profile case.

Cosby was charged, back in December 2015, with three counts of aggravated indecent assault for allegedly drugging and sexually assaulting former Temple University employee Andrea Constand at his mansion in Elkins Park, Pennsylvania, back in 2004. She is now 43.

Since then, more than 50 women have come forward claiming to have been sexually violated by the 79-year-old. He has pleaded not guilty to the criminal charges and has denied their claims.

Get the latest developments on Cosby's trial in the BET Breaks video above.

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