purpose: to report a case of anterior ischemic optic neuropathy (aion) after ingestion of tadalafil (a drug for management of erectile dysfunction). patient and findings: a healthy 26-year-old male was referred due to loss of vision and visual field defect in his left eye a few days after using tadalafil. visual loss was progressive during the following days. examination revealed disc swelling ...

Severe visual loss after a general surgical procedure can be a devastating complication for both surgeon and patient. Although visual loss can be the result of damage to any structure in the eye, most cases of such a complication are the result of ischemic damage to both the anterior and posterior portions of the optic nerve. Ischemic optic neuropathy (ION) is therefore a potentially devastatin...

Optic neuropathy is a frequent cause of vision loss encountered by ophthalmologist. The diagnosis is made on clinical grounds. The history often points to the possible etiology of the optic neuropathy. A rapid onset is typical of demyelinating, inflammatory, ischemic and traumatic causes. A gradual course points to compressive, toxic/nutritional and hereditary causes. The classic clinical signs...

toxic optic neuropathy (ton) is a group of medical disorders which can be defined by visual impairment due to optic nerve damage by a toxin. the exposure to a toxic substance can occur at the workplace, with ingestion of materials/ foods containing a toxin, or the use of systemic medications. ton is a disease entity which is not only under-diagnosed, but also often diagnosed at a stage when rec...

PURPOSE To present a unilateral central visual field defect in a patient with psoriatic arthritis treated with Methotrexate and folic acid supplement, probably induced by toxic posterior optic neuropathy. The scotoma incompletely resolved after cessation of Methotrexate (MTX) therapy. METHODS Serial fundoscopic, perimetric and electrophysiological examination as well as comprehensive neurolog...

The neurological manifestations of chronic hepatitis C is most often a peripheral sensory neuropathy characterised by numbness, burning and sensation of "pins and needles". Peripheral motor neuropathy, mononeuropathy, mononeuropathy multiplex and transverse myelitis also occur. Ischemic stroke and transient cerebral ischemia have also been reported. Anterior ischemic optic neuropathy is seen, o...