What DCS symptoms include vision disturbances and loss of speech?

The symptoms of vision disturbances and loss of speech are associated with Central Nervous System (CNS) Manifestations of Decompression Sickness (DCS). When a person is subjected to rapid pressure changes, such as during ascents in scuba diving or in aviation at high altitudes, nitrogen can form bubbles in the bloodstream. If these bubbles affect the central nervous system, they can lead to neurological symptoms, which may include visual disturbances, confusion, disorientation, and loss of speech.

This option correctly identifies the neurological repercussions that stem from DCS, focusing specifically on the brain and spinal cord's involvement, which explains these particular symptoms. Other manifestations of DCS, such as "The Creeps," "The Chokes," or "The Bends," have distinct symptoms that are different from those presented in this question. "The Bends," for instance, typically involves joint pain due to nitrogen bubbles but does not directly relate to CNS disturbances.