Coherency image analysis to quantify collagen architecture: implications in scar assessment

A novel technique for the fast and robust quantification of collagen architecture following scarring.

Demyelinating optic neuropathy with Miller-Fisher syndrome. The case for overlap syndromes with central and peripheral demyelination

The syndrome of ataxia, areflexia and ophthalmoplegia, or Miller-Fisher syndrome, has been considered to be a variant of Guillain-Barré syndrome with pathology restricted to the peripheral nervous system. A patient with Miller-Fisher syndrome and bilateral demyelinating optic neuropathy suggesting associated central nervous system pathology is presented. Clinical and experimental evidence regarding the association of central and peripheral nervous system demyelination is reviewed.

Optic perineuritis with secondary syphilis

Optic perineuritis is characterized by swollen optic discs in the absence of raised intracranial pressure and visual dysfunction. A patient with secondary syphilis who presented with these features is described. The need to recognize the spectrum of ocular and optic nerve involvement in secondary syphilis is emphasized.

Presentation of pinealoblastoma with ocular dipping and deafness

Ocular dipping and deafness as presenting manifestations in a patient with pinealoblastoma are highly unusual. Presence of a discrete lesion allows us to postulate a mechanism to explain ocular dipping in light of the present understanding of vertical eye movement control. A mechanism for deafness, probably a false localizing sign of raised intracranial pressure, is proposed also.

Anterior ischaemic optic neuropathy secondary to cluster headache

This report describes a patient with cluster headache who developed anterior ischaemic optic neuropathy during an attack of headache, an association not previously described. A possible pathophysiologic mechanism based upon the understanding of optic disc physiology and ocular vascular pathology in headache syndromes is proposed.