Prolonged microgravity exposure during long-duration spaceflight (LDSF) produces unusual
physiologic and pathologic neuro-ophthalmic findings in astronauts. These microgravity …

Visual impairment intracranial pressure (VIIP) syndrome is considered an unexplained
major risk for future long-duration spaceflight. NASA recently redefined this syndrome as …

PURPOSE: To describe the history, clinical findings, and possible etiologies of ophthalmic
findings discovered in 7 astronauts after long-duration space flight, and document vision …

Interesting novel and somewhat perplexing physiologic and pathologic neuro-ocular
findings have been documented in astronauts during and after long duration space flight …

Although changes to visual acuity in spaceflight have been observed in some astronauts
since the early days of the space program, the impact to the crew was considered minor …

This article briefly reviews the fidelity of ground-based methods used to simulate human
existence in weightlessness (spaceflight). These methods include horizontal bed rest (BR) …

New and unique physiologic and pathologic systemic and neuro-ocular responses have
been documented in astronauts during and after long-duration space flight. Although the …

Weightlessness and physical inactivity have deleterious cardiovascular effects. The space
environment and its ground-based models offer conditions to study the cardiovascular …

Significant progress has been made in the development of countermeasures to attenuate
the negative consequences of prolonged exposure to microgravity on astronauts' bodies …

Background and Purpose—We investigated cerebral blood flow regulation in astronauts
before and after flights. We hypothesized that autoregulation would be different before flight …