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NCT04434521: REFRACT
Comparison of Different Refraction Measurements in Adults
trial testing Questionnaire in Vision Loss Night in 17 participants. Completed in 3 May 2021.
3 May 2021
Quick facts
| Lead sponsor | Direction Centrale du Service de Santé des Armées |
|---|---|
| Status | Completed |
| Study type | OBSERVATIONAL |
| Enrollment | 17 |
| Start date | 5 March 2021 |
| Primary completion | 3 May 2021 |
| Estimated completion | 3 May 2021 |
| Sites | 1 location across France |
Drugs / interventions tested
- Questionnaire
- Eye examination
Conditions studied
- Vision Loss Night — all drugs for Vision Loss Night →
Sponsor
Direction Centrale du Service de Santé des Armées — full company profile →
Who can join
18 and older, any sex, with Vision Loss Night. Patients with the condition only — healthy volunteers not accepted.
Sponsor's own description
The combatant is likely to carry out missions any time, any place, day or night. The very strong degradation of natural vision performance in these conditions justifies the use of visual replacement means, based on optronic sensors whose sensitivity is more adapted to these luminous environments than that of the human eye. The duration and repetition of missions carried out with night vision sensors lead to visual complaints from users. The literature on night vision binoculars adjustment states that a binocular adjustment of the equipment provides more convex settings. The latter would then limit the strain on the accommodative component, which is one of the possible sources of operator visual fatigue. In order to allow a more appropriate adjustment, it is proposed to rely on a measurement of the refraction (optical defect of the eye) of each operator. Like binocular adjustments, binocular refractive methods would limit accommodative stimulation and thus visual fatigue. However, these methods are little used in favour of conventional methods. It is therefore necessary to evaluate the interest of binocular refraction for the adjustment of night vision binoculars. The purpose of this study is to compare refraction measurements by procedure in adult subjects free of ophthalmological disorders.
Publications & conference data
No peer-reviewed publications indexed yet for this trial. Completed trials usually publish results within 12-18 months.
Verify or expand the search:
- PubMed search for NCT04434521
- Europe PMC full search
- ASCO Meeting Library
- ESMO Meeting Library
- bioRxiv preprints
- medRxiv preprints
- Google Scholar
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Other Direction Centrale du Service de Santé des Armées trials
Trials by the same sponsor.
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Verify against primary sources
- ClinicalTrials.gov — authoritative US registry record
- WHO ICTRP — international registry index
- EU Clinical Trials Register
- Sponsor press releases (Google)
- Trial protocol + status: ClinicalTrials.gov NCT04434521 (US National Library of Medicine, public domain)
- Drug + disease cross-links: matched in real time against Drug Landscape's normalised drug + company + condition tables
- Sponsor: as reported to ClinicalTrials.gov by Direction Centrale du Service de Santé des Armées
- Last refreshed: 13 September 2022
Drug Landscape aggregates and links these public records for informational use only. Always verify against the primary source before clinical or regulatory decisions. Canonical URL: https://druglandscape.com/trial/NCT04434521.
Primary sources · FDA · ClinicalTrials.gov · EMA · SEC EDGAR · ChEMBL · Wikidata · full sourcing