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  2. Astigmatism - Wikipedia

    en.wikipedia.org/wiki/Astigmatism

    Astigmatism; Blur from astigmatic lens at different distances: Specialty: Ophthalmology, optometry: Symptoms: Distorted or blurred vision at all distances, eyestrain, and headaches [1] Complications: Amblyopia [2] Causes: Unclear [3] Diagnostic method: Eye exam [1] Treatment: Glasses, contact lenses, surgery [1] Frequency: 30% to 60% of adults ...

  3. Anisometropia - Wikipedia

    en.wikipedia.org/wiki/Anisometropia

    In this example the first eye, with a −1.00 diopter prescription, is the stronger eye, needing only slight correction to sharpen the image formed, and hence a thin spectacle lens. The second eye, with a −4.00 diopter prescription, is the weaker eye, needing moderate correction to sharpen the image formed, and hence a moderately thick ...

  4. List of optometric abbreviations - Wikipedia

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

    Right eye (oculus dexter) Ret. Retinoscopy RHyperT Right hypertropia RHypoT or RHT Right hypotropia RNFL Retinal nerve fibre layer RPE Retinal pigment epithelium RSOT Right esotropia Rx Prescription SE Spherical Equivalent: SLE Slit lamp examination SLM Slit lamp microscope EP Esophoria: ET Esotropia: Supp. Suppression V Vision (unaided) VA

  5. Small incision lenticule extraction - Wikipedia

    en.wikipedia.org/wiki/Small_incision_lenticule...

    The procedure has been described as safe and predictable in treating myopia and astigmatism. [11] Because SMILE treatment is relatively new compared with other laser correction treatments, result studies are limited, but postoperative five year (SMILE) outcomes indicate that the results have been stable after 5 years of follow-up. [12]

  6. Eyeglass prescription - Wikipedia

    en.wikipedia.org/wiki/Eyeglass_prescription

    This may represent a single-vision lens prescription to improve near work, or the reading portion of a bifocal lens. OD is an abbreviation for oculus dexter, Latin for right eye from the patient's point of view. Oculus means eye. OS is an abbreviation for oculus sinister, Latin for left eye from the patient's point of view.

  7. Intraocular lens - Wikipedia

    en.wikipedia.org/wiki/Intraocular_lens

    0.03–0.05% eye infection risk, which in worst case can lead to blindness. (This risk exists in all eye surgery procedures and is not unique to IOLs.) glaucoma, astigmatism, remaining near- or far-sightedness, rotation of the lens inside the eye one or two days after surgery.

  8. Astigmatism (optical systems) - Wikipedia

    en.wikipedia.org/wiki/Astigmatism_(optical_systems)

    Astigmatism causes difficulties in seeing fine detail. Astigmatism can be often corrected by glasses with a lens that has different radii of curvature in different planes (a cylindrical lens), contact lenses, or refractive surgery. [5] Astigmatism is quite common. Studies have shown that about one in three people suffers from it.

  9. Corrective lens - Wikipedia

    en.wikipedia.org/wiki/Corrective_lens

    For extreme nearsightedness, the eyes appear small and sunken into the face, and the sides of the skull can be visible through the lens. This gives the wearer the appearance of having a very large or fat head in contrast with their eyes. For extreme farsightedness the eyes appear very large on the face, making the wearer's head seem too small.

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