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  2. A-scan ultrasound biometry - Wikipedia

    en.wikipedia.org/wiki/A-scan_ultrasound_biometry

    A-scan ultrasound biometry, commonly referred to as an A-scan (short for Amplitude scan), uses an ultrasound instrument for diagnostic testing. [1] A-scan biometry measures the axial length (AL) of the eye prior to cataract surgery in order to assess the refractive power of the intraocular lens that will be implanted. [2]

  3. History of cataract surgery - Wikipedia

    en.wikipedia.org/wiki/History_of_cataract_surgery

    Cataract surgery is the removal of the natural lens of the eye that has developed a cataract, an opaque or cloudy area. [3] Over time, metabolic changes of the crystalline lens fibres lead to the development of a cataract, causing impairment or loss of vision.

  4. List of instruments used in ophthalmology - Wikipedia

    en.wikipedia.org/wiki/List_of_instruments_used...

    to correct refractive errors of the eye; not invasive Contact lenses: to correct refractive errors of the eye; a little invasive Phoropter: used in refraction testing Tonometers: used to determine the intraoccular pressure (IOP) - useful in glaucoma; video link for various types of tonometers. Speculum: to keep the eyes open during any operation

  5. Fluorescein angiography - Wikipedia

    en.wikipedia.org/wiki/Fluorescein_angiography

    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 ...

  6. Manual small incision cataract surgery - Wikipedia

    en.wikipedia.org/wiki/Manual_small_incision...

    Manual small incision cataract surgery (MSICS) is an evolution of extracapsular cataract extraction (ECCE); the lens is removed from the eye through a self-sealing scleral tunnel wound. A well-constructed scleral tunnel is held closed by internal pressure, is watertight, and does not require suturing.

  7. AOL Live Support Plus

    help.aol.com/articles/live-support-plus-faqs

    AOL Live Support Plus includes our top-of-the-line support and security products that will help protect your identity and information online. Get started today! Support when you need it: 24x7 Live Support gives you access to AOL experts over the phone or online chat, 24 hours a day, 7 days a week. Our experts are ready to assist you with any of ...

  8. Corneal topography - Wikipedia

    en.wikipedia.org/wiki/Corneal_topography

    Oculus Pentacam™ Corneal Eye Scan. The patient is seated facing the device, which is raised to eye level. One design consists of a bowl containing an illuminated pattern, such as a series of concentric rings. Another type uses a mechanically rotated arm bearing a light source.

  9. 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]