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Effects of Marihuana Use on Optic Nerve Parameters and Ocular Blood Flow

Effects of Marihuana Use on Optic Nerve Parameters and Ocular Blood Flow

Status
UNKNOWN
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT02080676
Enrollment
100
Registered
2014-03-06
Start date
2014-03-31
Completion date
2016-05-31
Last updated
2015-10-14

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Intra Ocular Pressure

Keywords

Cannabis, Intra ocular pressure, Ocular perfusion, Blood pressure

Brief summary

Purpose of study: to check the effect of medical cannabis given for approved medical indications on ocular parameters including intra ocular pressure, optic nerve fibers thickness and choroidal thickness.

Detailed description

Purpose of study: to check the effect of medical cannabis given for approved medical indications on ocular parameters including intra ocular pressure, Retinal Nerve Fiber Layer (RNFL) thickness, optic nerve fibers thickness and choroidal thickness. Adult patients with no ocular pathology that are being treated in the neurology or pain clinics with medical cannabis for different indications, were examined in the eye clinic. First examination took place after the patient was not smoking for 5 hours. Three more examinations took place 1 hour 3 hours and 5 hours after smoking cannabis. The following parameters were checked: blood pressure, pulse, visual acuity, intra ocular pressure, corneal thickness, axial length, slit lamp examination of anterior segment, fundoscopy and Optical Coherence Tomography (OCT) of the retina, and optic nerve.

Interventions

None listed

Sponsors

Carmel Medical Center
Lead SponsorOTHER

Study design

Observational model
COHORT
Time perspective
PROSPECTIVE

Eligibility

Sex/Gender
ALL
Age
18 Years to 90 Years
Healthy volunteers
No

Inclusion criteria

* Age over 18 * Treated with medical cannabis for approved medical indications

Exclusion criteria

* Known ocular pathology * Topical or systemic treatment for intra ocular pressure * Previous topical, intra ocular or systemic steroid treatment

Design outcomes

Primary

MeasureTime frame
Intra ocular pressure5 hours

Countries

Israel

Contacts

Primary ContactOrna Geyer, MD
orna_geyer@clalit.org.il97248250926

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026