Optic sheath diameter and positional change

JRCT ID: jRCT1030220381

Registered date:16/10/2022

Basic Information

• Recruitment status: Recruiting
• Health condition(s) or Problem(s) studied: Patients without orbital lesions, intracranial space-occupying lesions, or hydrocephales
• Date of first enrollment: 16/10/2022
• Target sample size: 50
• Study type: Observational

Outcome(s)

• Primary Outcome: Change of the outer diameter in response to positional change

Key inclusion & exclusion criteria

• Age minimum: >= 20age old
• Age maximum: <= 90age old
• Gender: Both

Include criteria

1. The orbital structures are intact
2. The optic sheath and nerve are anatomically intact
3. There are no intracranial space-occupying lesions
4. A written informed consent was obtained

Exclude criteria

1. Examinations for a trauma
2. An intraocular lesion responsible for visual dysfunction is suspected
3. Fully understanding for the study was thought not to not gain

Related Information

• Primary Sponsor: Tsutsumi Tsutsumi Satoshi