ArticleClinical ophthalmology (Auckland, N.Z.)2020
The Role of Head Elevation in Treatment of Vitreous Haemorrhage.
Article in Clinical ophthalmology (Auckland, N.Z.), 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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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.
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Who cites it
1 citing paper in PubMed, 0 citations in OpenAlex.
- Focused Ultrasound Treatment of Vitreous Hemorrhage in an In Vivo Rabbit Model.Ophthalmology science · 2026Article
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Authors and funding
3 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectiveTo investigate the effect of head elevation on macular clearance of acute vitreous haemorrhage.
designCrossover, prospective, randomized clinical study.
settingUniversity, tertiary care hospital.
participants24 vitreous haemorrhage patients, average age 55 years.
methodsPatients with acute vitreous haemorrhage who were randomly separated into 2 groups. In group A, the patients were assigned normal head position for the first week of sleep, then switched to head elevation for the second week (n=12). In group B, the patients were assigned the head position in reverse order (n=12). A washout period of 24 hrs was used between treatments. The carryover, sequence, and treatment effects were analysed by using various mixed models. OUTCOMES: Best-corrected visual acuity (BCVA), vitreous haemorrhage grading, fundus photo colour intensity, and self-assessment scores.
resultsAlthough the mean BCVA (LogMAR) change following head elevation was higher than following normal head position, the difference was not statistically significant (-0.053 and 0.065 LogMAR, respectively, p = 0.2). Vitreous haemorrhage grading in the central region showed no statistical improvement in either group. Fundus photo colour intensity comparison in all fundus areas also showed no statistically significant differences in either group.
conclusionAlthough head elevation is recommended to patients with acute vitreous haemorrhage, this study showed no statistically significant improvement in BCVA, vitreous haemorrhage grading, or fundus photo colour intensity between head elevation and normal head position in the early observation period.
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