The clinical investigator

, Volume 71, Issue 9, pp 700–703 | Cite as

Self-tonometry under microgravity conditions

  • J. Draeger
  • R. Schwartz
  • S. Groenhoff
  • C. Stern


During a space mission flown in microgravity early changes in intraocular pressure due to the fluid shift effect in microgravity were analyzed with an automatic self-tonometry. In total, 13 pressure readings per eye were obtained during the mission. The first pressure readings 16 min after reaching microgravity revealed a 92% rise in intraocular pressure compared to the daytime-correlated baseline data on earth followed by an adaptation phase lasting for several hours. Diurnal pressure profiles during the mission showed no relevant difference in altitude and amplitude.

Key words

Intraocular pressure Microgravity Self-tonometry 



intraocular pressure


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Copyright information

© Springer-Verlag 1993

Authors and Affiliations

  • J. Draeger
    • 1
    • 2
  • R. Schwartz
    • 1
  • S. Groenhoff
    • 1
  • C. Stern
    • 1
  1. 1.Abteilung für OphthalmologieUniversitäts-Krankenhaus EppendorfHamburg
  2. 2.Abteilung für Ophthalmologie Universitäts-Krankenhaus EppendorfHamburg 20Germany

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