Related Experiment Video
Updated: Jan 25, 2026

Tobacco Hornworm as an Insect Model System for Cannabinoid Pre-clinical Studies
Published on: December 29, 2021
Purtscher-Like Retinopathy Associated with Synthetic Cannabinoid (Bonzai) Use
Zafer Onaran1, Yaprak Akbulut2, Serkan Tursun2
1Kırıkkale University Faculty of Medicine, Department of Ophthalmology, Kırıkkale, Turkey
This study reports the first case of Purtscher-like retinopathy, a condition causing vision loss, linked to synthetic cannabinoid (Bonzai) use. This finding highlights a new potential cause for this rare retinal disease.
Area of Science:
- Ophthalmology
- Toxicology
Background:
- Purtscher’s retinopathy is a rare microvascular occlusive disease typically associated with trauma.
- Purtscher-like retinopathy presents similarly but is linked to systemic conditions.
- Synthetic cannabinoids, like Bonzai, are increasingly associated with adverse health effects.
Purpose of the Study:
- To describe the first documented case of Purtscher-like retinopathy associated with synthetic cannabinoid (Bonzai) use.
- To highlight a novel potential etiology for Purtscher-like retinopathy.
Main Methods:
- Ophthalmic examination including fluorescein angiography and optical coherence tomography.
- Clinical correlation of symptoms with substance use history.
Main Results:
- The patient presented with blurred vision and bilateral cotton-wool spots.
- Diagnostic imaging confirmed findings consistent with Purtscher-like retinopathy.
- The condition was directly linked to recent Bonzai use.
Conclusions:
- Synthetic cannabinoid (Bonzai) use can induce Purtscher-like retinopathy.
- This case expands the known causes of Purtscher-like retinopathy.
- Ophthalmologists should consider substance abuse in the differential diagnosis for patients presenting with Purtscher-like retinopathy.
Related Concept Videos
CNS Stimulants: Cocaine, Amphetamines and Cannabinoids
Chemotherapy-Induced Nausea and Vomiting: Cannabinoids
Two synthetic agonists of THC,...
Synthetic Biology
Golden rice
Golden rice is a genetically modified...
Opioid Analgesics: Synthetic and Semisynthetic Opioids
Polymers
Enzymes
Enzyme deficiencies can often translate into life-threatening diseases. For example, a genetic abnormality resulting in the deficiency of the enzyme G6PD...

