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  2. Retinal scan - Wikipedia

    en.wikipedia.org/wiki/Retinal_scan

    A retinal scan is performed by casting an unperceived beam of low-energy infrared light into a person’s eye as they look through the scanner's eyepiece. This beam of light traces a standardized path on the retina. Because retinal blood vessels absorb light more readily than the surrounding tissue, the amount of reflection varies during the scan.

  3. Scanning laser ophthalmoscopy - Wikipedia

    en.wikipedia.org/wiki/Scanning_laser_ophthalmoscopy

    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]

  4. Optical coherence tomography - Wikipedia

    en.wikipedia.org/wiki/Optical_coherence_tomography

    Ocular OCT retinal thickness map, right eye Time-domain OCT of the macular area of a retina at 800 nm, axial resolution 3 μm Spectral-domain OCT macula cross-section scan. Optical coherence tomography (OCT) is a technique for obtaining sub-surface images of translucent or opaque materials at a resolution equivalent to a low-power microscope.

  5. Heidelberg Retinal Tomography - Wikipedia

    en.wikipedia.org/wiki/Heidelberg_retinal_tomography

    The Heidelberg Retinal Tomography is a diagnostic procedure used in ophthalmology. The Heidelberg Retina Tomograph (HRT) is an ophthalmological confocal point scanning laser ophthalmoscope [ 1 ] for examining the cornea and certain areas of the retina using different diagnostic modules (HRT retina, HRT cornea, HRT glaucoma).

  6. List of optometric abbreviations - Wikipedia

    en.wikipedia.org/wiki/List_of_optometric...

    Neuro-retinal rim NS Nuclear sclerosis: NTG Normal tension glaucoma: PDR Proliferative diabetic retinopathy PDT Photodynamic therapy: PK Penetrating keratoplasy: POAG Primary open-angle glaucoma PPDR Preproliferative diabetic retinopathy PRA Pan-retinal ablation PRK Photorefractive keratectomy PRP Pan-retinal photocoagulation PSCC

  7. HK scientist develops retinal scan technology to identify ...

    www.aol.com/news/hk-scientist-develops-retinal...

    A Hong Kong scientist has developed a method to use machine learning and artificial intelligence to scan retinas of children as young as six to detect early autism or the risk of autism and hopes ...

  8. Scanning laser polarimetry - Wikipedia

    en.wikipedia.org/wiki/Scanning_laser_polarimetry

    In Retinal scanning laser polarimetry (SLP), the cornea, lens, and retina are all treated as linear retarders (optical elements that introduce retardation to an illuminating beam). A linear retarder has a slow axis and a fast axis, and the two axes are orthogonal to each other.

  9. Retinography - Wikipedia

    en.wikipedia.org/wiki/Retinography

    Retinography is imaging of the retina and may refer to: Retinal scan, a biometric technique to identify people; Ophthalmoscopy, diagnostic examination of the retina and other structures in the fundus of the eye