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  2. Van Herick technique - Wikipedia

    en.wikipedia.org/wiki/Van_Herick_technique

    The method involves a narrow slit of light from a slit lamp being projected onto the peripheral cornea at an angle of 60⁰ as near as possible to the limbus. The resulting image is a slit that is projected onto the surface of the cornea, the width is then used as a reference for the grading of the angle.

  3. Slit lamp - Wikipedia

    en.wikipedia.org/wiki/Slit_lamp

    Eye examination with the aid of a slit lamp. Side view of a slit lamp machine. Cataract in human eye: magnified view seen on examination with the slit lamp. In ophthalmology and optometry, a slit lamp is an instrument consisting of a high-intensity light source that can be focused to shine a thin sheet of light into the eye.

  4. Gonioscopy - Wikipedia

    en.wikipedia.org/wiki/Gonioscopy

    In ophthalmology, gonioscopy is a routine procedure that measures the angle between the iris and the cornea (the iridocorneal angle), using a goniolens (also known as a gonioscope) together with a slit lamp or operating microscope. [1] [2] Its use is important in diagnosing and monitoring various eye conditions associated with glaucoma.

  5. List of optometric abbreviations - Wikipedia

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

    open angle between cornea and iris AC 3/4: Grade 3 anterior chamber angle: AC 2/4: ... Slit lamp examination SLM Slit lamp microscope EP Esophoria: ET Esotropia: Supp.

  6. List of instruments used in ophthalmology - Wikipedia

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

    Slit lamp bio microscope: used for examining the anteriorly placed structures the eye; video link: Charts for vision - •Distant vision: to determine visual acuity of distant vision ••Snellen's distant vision chart-do-; for those who can read in English ••Regional language charts-do-; for those who can read in their local language ...

  7. Trabeculoplasty - Wikipedia

    en.wikipedia.org/wiki/Trabeculoplasty

    It is done on an argon laser equipped slit lamp, using a Goldmann gonioscope lens mirror. Specifically, an argon laser is used to improve drainage through the eye's trabecular meshwork, from which the aqueous humour drains. This helps reduce intraocular pressure caused by open-angle glaucoma. [1]

  8. Posner–Schlossman syndrome - Wikipedia

    en.wikipedia.org/wiki/Posner–Schlossman_syndrome

    Ocular hypertension (IOP 30 - 70 mmHg) with open angle of anterior chamber and unilateral mild granulomatous anterior uveitis are hallmark signs of Posner–Schlossman syndrome. [2] On slit-lamp examination, conjunctival injections, epithelial corneal edema, [ 3 ] small to medium-sized fine keratitic precipitates, aqueous cells and flare may ...

  9. Watzke–Allen test - Wikipedia

    en.wikipedia.org/wiki/Watzke–Allen_test

    Watzke-Allen test (WAT) also known as Watzke-Allen slit beam test (WASBT) is a test used in the diagnosis of a macular hole, a condition affecting the macular region in the retina of the eye. The test is done by projecting a thin line of light over the macula with a slit lamp .