6 hasil untuk "Timon Ax"

How best to measure tear film formation: an opinion

Timon Ax; Slade O. Jensen; Thomas J. Millar

Frontiers in Physiology, Vol. 17 · 2026 · Inggris · DOAJ Scopus

Pulse Wave Velocity: Methodology, Clinical Applications, and Interplay with Heart Rate Variability

Niklas Pilz; Viktor Heinz; Timon Ax dkk.

Reviews in Cardiovascular Medicine, Vol. 25 No. 7 · 2024 · Inggris · DOAJ Scopus

Pulse wave velocity (PWV) has been established as a promising biomarker in cardiovascular diagnostics, providing deep insights into vascular health and cardiovascular risk. Defined as the velocity at which the mechanical wave propagates along the arterial wall, PWV represents a useful surrogate…

Dry eye disease in astronauts: a narrative review

Timon Ax; Bergita Ganse; Fabian N. Fries dkk.

Frontiers in Physiology, Vol. 14 · 2023 · Inggris · DOAJ Scopus

Long-duration spaceflight can have adverse effects on human health. One of the most common ocular conditions experienced by astronauts is dry eye disease (DED). Symptoms of DED include feelings of eye irritation, eye strain, foreign body sensation and blurred vision. Over 30% of International Space…

On the nose: nasal neurostimulation as a technology countermeasure for sinonasal congestion in astronauts

Timon Ax; Philipp H. Zimmermann; Tomas L. Bothe dkk.

Frontiers in Physiology, Vol. 16 · 2025 · Inggris · DOAJ Scopus

Human spaceflight subjects the body to numerous and unique challenges. Astronauts frequently report a sense of sinonasal congestion upon entering microgravity for which the exact pathomechanisms are unknown. However, cephalad fluid shift seems to be its primary cause, with CO2 levels and…

Giving the Side-Eye: Asymmetrical Response of the Tear Film Margins to Lateral Gaze Changes

Timon Ax; Fabian N. Fries; Tomas L. Bothe dkk.

Journal of Clinical & Translational Ophthalmology, Vol. 4 No. 3 · 2026 · Inggris · DOAJ

Background: Lateral eye movements are part of natural ocular motility, and their effect on tear film behavior is largely unknown because they are usually not evaluated during tear film examinations, where patients are required to look straight ahead. This study aimed to determine what happens to…

The Effect of Microgravity on Lower Eyelid Position in Astronauts

Timon Ax; Tomas L. Bothe; Jennifer P. Craig dkk.

Eye & ENT Research, Vol. 3 No. 2 · 2026 · Inggris · DOAJ

ABSTRACT Background Specific facial changes are known to occur in microgravity. A higher lower eyelid position has been observed during short‐term microgravity but has not been analyzed in astronauts during spaceflight. Purpose To describe the effect of spaceflight on lower eyelid position. Method…