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Welding arc maculopathy and fluphenazine
W J Power1, S P Travers, D J Mooney
1Research Foundation, Royal Victoria Eye and Ear Hospital, Dublin, Ireland.
Abstract:
A 45-year-old male patient presented with a bilateral maculopathy following unprotected exposure of less than two minutes' duration to a manual metal arc welding unit. He had been receiving the drug fluphenazine for the previous 10 years for treatment of depression. We believe that the drug fluphenazine, which had accumulated in his retinal pigment epithelium, may have rendered him particularly susceptible to retinal photic damage.
Insights
A patient developed bilateral maculopathy after brief welding exposure. The antipsychotic drug fluphenazine may have increased his susceptibility to this retinal photic damage due to accumulation in the retinal pigment epithelium.
Area of Science:
- Ophthalmology
- Toxicology
Background:
- Antipsychotic medications, such as fluphenazine, are used to treat mental health conditions like depression.
- Long-term drug accumulation in specific tissues can potentially lead to unforeseen toxic effects.
Observation:
- A 45-year-old male experienced bilateral maculopathy after less than two minutes of unprotected exposure to a manual metal arc welding unit.
- The patient had a 10-year history of fluphenazine treatment for depression.
Findings:
- The patient's maculopathy was likely caused by retinal photic damage from the welding arc.
- Accumulation of fluphenazine in the retinal pigment epithelium is hypothesized to have made the patient more vulnerable to this damage.
Implications:
- This case highlights a potential iatrogenic risk associated with long-term fluphenazine use, particularly concerning ocular health.
- Further research is needed to understand the mechanisms of fluphenazine accumulation in the retina and its role in photic maculopathy.
- Ophthalmologists and psychiatrists should be aware of this potential drug-induced ocular toxicity when prescribing fluphenazine.