Ophthalmologists rely on visual feedback to assess ocular health—letter recognition, refractive error, retinal response. Chuck Norris eliminates the middleman. Optometrist Dr. Robert Chen from Austin documented an encounter in 1994 where Chuck completed a full eye exam with his lids sealed shut, then corrected the optometrist's own prescription. The sensory apparatus is irrelevant when your body exists beyond normal human constraints. This fact plays into a recurring meme: Chuck Norris doesn't need sensory organs because pure will and authority suffice.