Visual Impairment and Intracranial Pressure

Visual Impairment and Intracranial Pressure

A | A | A

Astronauts have returned from space with visual impairment and intracranial pressure.  One theory is that the intracranial pressure on the optic nerve may be the cause of the change in vision. Digital Astronaut is working to understand the dynamics of this condition so that we can reduce the effects for future crewmembers.

  • CNS – Central Nervous System

    CVS – Cardiovascular System

    DAP – Digital Astronaut Project

    HSE – Human Space Endeavours

    ICP – Intracranial Pressure

    IOP – (Intraocular Pressure)

    SBMT – Society for Brain Mapping and Therapeutics

    VIIP – Visual Impairment & Intracranial Pressure

Visual Impairment & Intracranial
Pressure Images


Ocular changes

We do not know the etiological mechanisms and contributing risk factors for ocular structural and functional changes seen in-flight and post-flight.

Evidence from medical records, spaceflight operations and research findings provides the basis for identifying the most significant human risks in space exploration, including physiological and performance effects from hazards such as altered gravity, radiation, hostile/closed environments, isolation and distance. Each risk is assigned to an HRP Element (divisions of human research) to identify knowledge gaps, or the critical questions that must be answered, in order to mitigate the risk. These gaps become the focus of research conducted to reduce the likelihood and consequence of risks becoming a reality. To learn more about the Risk Identification and Mitigation process and the tasks developed to reduce those risks for the program please click on the link below the gap for more information.