Hi & Welcome.
I can understand your concern for the safety of Trazodone.
Used basically as an antidepressant medicine to treat patients with
depression also found to be useful in the treatment of sleep disorders.
Yes,
blurred vision appears to be caused by Trazodone.
The common side effects of Trazodone include
dizziness,
drowsiness, vision changes, nausea, vomiting, headache, and dryness of mouth.
The vision changes such as blurred vision,
tunnel vision, eye pain or swelling, or seeing halos around lights can occur even in only one eye also.
You are advised to consult your treating doctor for a safer but effective alternative (such as short acting benzodiazepines such Alprazolam) to treat your sleep disturbances.
Hope this answers your query.
A feedback is appreciated.