ReviewNPJ microgravity2022
Optic nerve sheath diameter and spaceflight: defining shortcomings and future directions.
Review in NPJ microgravity, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
10 citing papers in PubMed.
- Physiological cerebrospinal fluid interactions between brain and eye structures are altered after long-duration spaceflight.Experimental physiology · 2026Article
- Neurological complications in microgravity and long duration spaceflight.NPJ microgravity · 2026Review
- Ophthalmic and Visual System Changes in Human Spaceflight: A Review of Mechanisms, Measurement, and Countermeasures.Journal of clinical medicine · 2026Review
- Ocular health in outer space and beyond gravity: A minireview.World journal of clinical cases · 2026Review
- Spaceflight Associated Neuro-ocular Syndrome (SANS) and its countermeasures.Progress in retinal and eye research · 2025Review
- The Effects of Antioxidant Cocktail on Ophthalmological Changes Induced by a 60-Day Head-Down Bed Rest in a Randomized Trial.Life (Basel, Switzerland) · 2024Article
- Quantitative ultrasound image assessment of the optic nerve subarachnoid space during 90-day head-down tilt bed rest.NPJ microgravity · 2024Article
- Posture-Induced Changes in Intraocular, Orbital, Cranial, Jugular Vein, and Arterial Pressures in a Porcine Model.Investigative ophthalmology & visual science · 2023Article
- Effects of head-down tilt on optic nerve sheath diameter in healthy subjects.Ophthalmic & physiological optics : the journal of the British College of Ophthalmic Opticians (Optometrists) · 2023Article
- Comprehensive assessment of physiological responses in women during the ESA dry immersion VIVALDI microgravity simulation.Nature communications · 2023Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
7 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Neuro-ocular changes during long-duration space flight are known as spaceflight-associated neuro-ocular syndrome (SANS). The ability to detect, monitor, and prevent SANS is a priority of current space medicine research efforts. Optic nerve sheath diameter (ONSD) measurement has been used both terrestrially and in microgravity as a proxy for measurements of elevated intracranial pressure. ONSD shows promise as a potential method of identifying and quantitating neuro-ocular changes during space flight. This review examines 13 studies measuring ONSD and its relationship to microgravity exposure or ground-based analogs, including head-down tilt, dry immersion, or animal models. The goal of this correspondence is to describe heterogeneity in the use of ONSD in the current SANS literature and make recommendations to reduce heterogeneity in future studies through standardization of imaging modalities, measurement techniques, and other aspects of study design.
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.