Woods, coming off two back surgeries in two-and-a-half months, isn’t playing this week and he made it clear that there is no timetable for a return.
"That's the hardest part for me," he said. "There's really nothing I can look forward to, nothing I can build towards. It's literally just day by day and week by week and time by time.
"Where is the light at the end of the tunnel? I don't know."
Woods last played on Tour at the Wyndham Championship, where he tied for 10th, in August. He had back surgery in September and again at the end of October – on the same area.
Woods said that he hasn’t hit a ball “in two months,” and has yet to begin rehabilitation.
"I walk," he said, when asked about his functionality. "I walk and I walk some more."
"I am really good at playing video games," he added, "really good. I swear, that's basically how I pass a lot of my time."