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Scanning laser ophthalmoscopy developed as a method to view a distinct layer of the living eye at the microscopic level. The use of confocal methods to diminish extra light by focusing detected light through a small pinhole made possible the imaging of individual layers of the retina with greater distinction than ever before. [4]
Since then, the features of fundus cameras have improved drastically to include non-mydriatic imaging, electronic illumination control, automated eye alignment, and high-resolution digital image capture. These improvements have helped make modern fundus photography a standard ophthalmic practice for documenting retinal disease.
Fluorescein angiography is used by physicians specializing in the treatment of eye diseases (ophthalmologists) to evaluate the vasculature of the retina, choroid, optic disc, and iris. [3] Among the common groups of ophthalmologic disease, fluorescein angiography can detect diabetic retinopathy ( neovascularization ), vein occlusions, retinal ...
During the examination, a laser beam passes through the pupil opening onto the back of the eye and scans the optic nerve head and the retina. A three-dimensional image is generated from several tens of thousands of measuring points, which allows a quantitative assessment of all relevant anatomical structures: [5] disc cup (shape, asymmetry),
The pupil is a hole through which the eye's interior can be viewed. For better viewing, the pupil can be opened wider (dilated; mydriasis) before ophthalmoscopy using medicated eye drops (dilated fundus examination). However, undilated examination is more convenient (albeit not as comprehensive), and is the most common type in primary care.
The human retina is a thin tissue made up of neural cells that is located in the posterior portion of the eye. Because of the complex structure of the capillaries that supply the retina with blood , each person's retina is unique, making retinal scans an emerging authentication method. [ 1 ]
Healthy eye fundus viewed through a retinal camera Retinal image with signs of macular degeneration. Teleophthalmology is a branch of telemedicine that delivers eye care through digital medical equipment and telecommunications technology. Today, applications of teleophthalmology encompass access to eye specialists for patients in remote areas ...
CHRPE is often discovered in annual eye exams, discovered by the digital imaging. [8] It is uncommon to identify this by staring into a mirror as the lesions that are grouped together is to small to see with the human eye. [9] There are three separate versions of CHRPE: solitary, grouped and atypical. [1]
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