Michael Nash recounted seeing his sister Charla Nash, who lost her hands, nose, lips and eyelids and may be blind and suffering brain damage, for the first time in the hospital.
"The first night, her daughter wanted to go in and see. I kind of recommended not to, but she wanted to. I went in with her. We stood there. And we said our prayer. And then, you know, we left. She says she could hardly recognize her," he told CBS' The Early Show Thursday.
Hospital officials say it's still unclear if her condition can improve at all.
The Cleveland Clinic, revealing the specific injuries Wednesday for the first time, told The Associated Press in a statement that the 55-year-old Nash also lost the bone structure in her face when she was attacked on Feb. 16 in Stamford, Conn.
Dr. Kevin Miller, Nash's attending surgeon, told Early Show anchor Maggie Rodgriguez her injuries "were extensive most I've seen for a facial trauma."
Her wounds have been stabilized, but "critical issues still remain related to a significant traumatic brain injury and injuries to her eyes that threaten her vision," the hospital said.
Neurosurgeons and ophthalmologists are working to evaluate and manage her injuries, but "the full extent of these injuries and her potential for recovery, if any, remain unclear at this time," the hospital said.
Nash remains sedated in the hospital, which performed the first U.S. face transplant in December. Miller said that if Nash sufficiently recovers, then she may be a candidate for a face transplant.
The family and hospital said they are grateful to those across the country who have been concerned about Nash's recovery.
The 200-pound chimp was shot and killed by police. Police are still deciding whether its owner, Sandra Herold, of Stamford, will face criminal charges.
Herold's attorney, Joe Gerardi, declined to comment Wednesday.
Herold had asked Nash to come to her home the day of the attack to help lure Travis back into her house. Herold has speculated that the chimp was trying to protect her and attacked Nash because she had changed her hairstyle, was driving a different car and was holding a stuffed toy in front of her face to get Travis' attention.
When he was younger, Travis starred in TV commercials for Old Navy and Coca-Cola, made an appearance on the "Maury Povich" TV talk show and took part in a television pilot.