2 天之前 · Under an official study at Alexandria University, 120 eyes have been treated with a new device that flexes the periphery of the capsule to preserve its shape and intracapsular area while internal structures fix and stabilize the optical part of the IOL. Safety and efficacy have been studied for a 3-year follow-up period.

2 天之前 · Vision Our visual perception is dependent on the eye, its accessory structures, the optic tracts, and the primary visual cortex and it’s association areas Vision is possible because of photoreceptors that are able to “catch” photons of EM radiation in the 400-700 nm wavelengths – what we perceive as visual light https://www.ecampuslife ...

3 天之前 · Summarizing the indications studied, we find that the leading indication is breast cancer (Fig. 2a).Other notable indications include arthritis, gynecological cancers, atherosclerosis, and melanoma.

3 天之前 · This study aimed to evaluate the efficacy and safety of selective internal radiation therapy (SIRT) with yttrium-90 resin microspheres followed by lenvatinib and PD-1 inhibitor in Chinese patients with large (5.1–10.0 cm in diameter) or huge (>10.0 cm) advanced-stage hepatocellular carcinoma (HCC).

5 天之前 · However, for patients with disease refractory to medical or radiation treatment, surgical debulking may be considered and orbital decompression for eyes with compressive optic neuropathy. Surgical debulking of the orbital lobe of the lacrimal gland has been used as initial treatment for idiopathic dacryoadenitis with 80% success rate and 8% ...

2 天之前 · The eye can be considered as a living optical device. It is approximately spherical in shape, with its outer layers, such as the outermost, white part of the eye (the sclera ) and one of its inner layers (the pigmented choroid ) keeping the …

4 天之前 · The optical characterization of the detection medium is crucial to properly reconstruct the physics events and to discriminate the signal from internal or the muon-induced radioactive backgrounds. In particular, the determination of fluorescence emission time is mandatory to accurately reconstruct the interaction position.

1 天前 · Radiation therapy or radiotherapy (RT, RTx, or XRT) is a treatment using ionizing radiation, generally provided as part of cancer therapy to either kill or control the growth of malignant cells. It is normally delivered by a linear particle accelerator.

3 天之前 · Acute stroke and transient ischaemic attack (TIA) are focal neurological syndromes of vascular origin and should be treated as medical emergencies. Brain imaging with computed tomography or magnetic resonance imaging is required to distinguish ischaemic stroke from intracerebral haemorrhage, recognize non-stroke pathologies that mimic stroke, and guide …

3 天之前 · The history of radiation protection begins at the turn of the 19th and 20th centuries with the realization that ionizing radiation from natural and artificial sources can have harmful effects on living organisms. As a result, the study of radiation damage also became a part of this history.