OBJECTIVE To evaluate the relationship between age and peripapillary retinal nerve fibre layer thickness in healthy Chinese subjects. DESIGN Cross-sectional study. SETTING Regional hospital, Hong Kong. PARTICIPANTS Healthy volunteers (n=218) of Chinese ethnicity with spherical equivalent of -6 to +4 dioptres were recruited for study from October 2001 to March 2003. Ocular examination was ...

Purpose To report a case of uveitic glaucoma with a congested optic disc where optical coherence tomography angiography (OCT-A) provided diagnostic utility in assessing glaucomatous damage but optical coherence tomography (OCT) alone had limited utility. Observations We report a case of a 33-year-old Caucasian female referred to the USC Roski Eye Institute for uncontrolled intraocular pressur...

Optical scattering techniques have the potential to provide noninvasive measurements of neural activity with good spatial and temporal resolution. We used the lobster nerve as a model system to investigate and record event-related optical signals with a modulated light source and heterodyne detection system. We observed changes in the transmitted birefringent light intensity, corresponding with...

BACKGROUND The aim of our study was to analyze spectral optical coherence tomography (SD-OCT) findings in a patient with clinical signs of sialidosis. CASE REPORT Fluorescein angiography and spectral optical coherence tomography was performed in a 37-year-old woman using a SD-OCT device with axial resolution of 6 µm. Enzyme assay followed. The patient was diagnosed with type I sialidosis by e...

conclusions our results support the use of pns in some patients with refractory chronic headaches. appropriate surgical planning and technique are important to achieve good clinical outcome and to minimize complications. background subcutaneous peripheral nerve stimulation (pns) has emerged as a useful tool in the treatment of intractable headaches. however, complications such as skin erosion, ...

background: two main muscles studied in the hand for evaluation of median nerve injuries are opponens pollicis (op) and abductor pollicis brevis (apb). however, riché-cannieu communicating branch (rccb) may limit the use of these muscles in electrodiagnosis. this condition is confusing in the case of median nerve injuries. this study was conducted to evaluate the prevalence of rccb.   methods: ...

Optical methods for recording electrical activity in the goldfish optic tectum were evaluated. Tectal slices, with a short section of the optic nerve attached, were stained with a fluorescent styryl dye. Potential-dependent fluorescence changes following optic nerve stimulation were monitored with a photodiode. We found that large optical signals could be obtained. Experimental manipulations of...

Optical coherence tomography (OCT) is considered a key research tool to monitor neurodegenerative processes in CNS disorders. This particularly applicable multiple sclerosis (MS), which retinal changes (peripapillary nerve fiber layer and ganglion cell–inner plexiform [GCIPL] thicknesses) tend reflect MRI markers of damage atrophy, especially eyes not affected by previous optic neuritis.1

PURPOSE To investigate the nerve endings of the adult temporomandibular joint disk, in particular the presence and configuration of the sensory nerve endings by silver staining and electron microscopy. METHODS 20 cadaveric temporomandibular joints impregnated with silver stain were studied using an optical microscope; 2 other joints were studied using a transmission electron microscope. RES...