ABSTRACT Purpose: to compare the Subfoveal choroidal thickness (SFCT) and Retinal Nerve Fiber Layer Thickness (RNFL) of amblyopic normal fellow eyes. Design: Prospective, cross-sectional, observational case series. Methods: Forty patients age 12 41 years (mean 23.73 ± 6.42) with unilateral amblyopia were studied. Among them, 11(28.2%) had secondary strabismus 29(71.8 %) anisometropic amblyopia....

The first way to identify the needle in relation peripheral nerve W. Halsted and R. Hall 1884 performed regional blockade (using direct visualization). However, Vassily von Anrep was a few months earlier described of by anatomical landmarks. In 1912, brachial plexus using electrical stimulation, but this technique has been widely used only since 1962. most popular relative at moment remains US ...

A non-contact optical method for minimally invasive neural recording is designed and implemented. This method is based on phase-resolved spectral domain optical coherence tomography (SD-OCT). The optical electrode system is calibrated by performing phase measurements from a glass slide and some preliminary experiments of optical imaging and phase measurements in optic nerve of Limulus polyphemu...

Recurrent laryngeal nerve injury, hypocalcemia and bleeding are the most common severe complications in thyroid surgery. However, growing use of energy devices, hemostatic agents optical magnification techniques allows for a significant reduction such complications, while also improving quality intra- postoperative course reducing surgical times.

We present spectral domain polarization-sensitive optical coherence tomography (SD PS-OCT) imaging of peripheral nerves. Structural and polarization-sensitive OCT imaging of uninjured rat sciatic nerves was evaluated both qualitatively and quantitatively. OCT and its functional extension, PS-OCT, were used to image sciatic nerve structure with clear delineation of the nerve boundaries to muscle...

Conventional cochlear implants electrically stimulate the auditory nerve to bypass non-functional hair cells. The present study investigates optical stimulation as alternative to replace cochlear function. Although pulsed laser light is known to excite the organ of Corti, the interaction sites of pulsed lasers with the cellular elements of the inner ear have not been clarified yet. So far, two ...