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14 Possible Causes for Astigmatic Refractive Errors, Central Corneal Thickness Decreased

  • Keratoglobus

    A significant decrease was also seen in mean refractive astigmatism which decreased from 5.93 (3.06) D preoperatively to 3.23 (1.14) D (p   0.037).[doi.org] Corneal thickness increased and central keratometry decreased after the LSCS-LKP was performed in all the patients. The patients were followed up for at least 6 months.[ncbi.nlm.nih.gov] Others have also indicated that the thinnest corneal thickness, as well as central corneal thickness, may be helpful in distinguishing grades of keratoconus severity.[clspectrum.com]

  • Hyperopia

    Hyperopia (also called “farsightedness”) is a refractive error of the eye (like myopia and astigmatism ).[visualeffects.ca] central corneal thickness, significantly decrease postoperatively compared with preoperatively.[ncbi.nlm.nih.gov] The refractive error of the right eye was severely overcorrected due to data entry error.[ncbi.nlm.nih.gov]

  • Keratitis

    Two-thirds of Americans with myopia also have astigmatism. Refractive errors are usually corrected by eyeglasses or contact lenses.[web.archive.org] The DLK group had a higher proportion of males (58.5% vs. 52.1%, P 0.006), greater preoperative central corneal thickness (549.5 32.6 vs. 545.3 30.5 μm, P 0.005), and a lower[ncbi.nlm.nih.gov] Refractive Errors About 120 million people in the United States wear eyeglasses or contact lenses to correct nearsightedness, farsightedness, or astigmatism.[web.archive.org]

  • Keratoconus

    Two-thirds of Americans with myopia also have astigmatism. Refractive errors are usually corrected by eyeglasses or contact lenses.[web.archive.org] Central corneal thickness decreased by 28.6 and 40.2 μm after DAI-CXL and C-CXL at month 1, respectively (P 0.01), and it reached baseline at the 12th month (P 0.14) only[ncbi.nlm.nih.gov] There was a decrease of central corneal thickness between the preoperative period and the time at which corneal haze resolved (470.8 34.1 μm to 464.8 34.5 μm, P 0.047 at the[ncbi.nlm.nih.gov]

  • Exfoliation Syndrome

    Patients with visual acuity under 0.6 according to Snellen were excluded, as well as those with refraction errors, i.e. hypermetropia over 3 spherical diopters, myopia over[ncbi.nlm.nih.gov] In certain instances, these changes are accompanied by increased central corneal thickness. 14 Fine measurements via specular microscopy can show a measureable decrease in[reviewofoptometry.com] -5 spherical diopters, astigmatism over 2 cylindrical diopters, patients with affections that might affect the macula or the optic nerve, such as diabetic retinopathy, macular[ncbi.nlm.nih.gov]

  • Salzmann's Nodular Dystrophy

    Astigmatic keratotomy has not been proven for treatment of other refractive errors.[aetna.com] The cause of the astigmatism in this patient’s left eye is likely primarily a result of the nodule, although she may also have an underlying residual refractive error, as[crstoday.com] Surgery is uniformly successful in removal of the nodule and almost invariably successful in reducing the astigmatic error in allowing for improvement in best corrected visual[webeye.ophth.uiowa.edu]

  • Iridocorneal Endothelial Syndrome

    Two-thirds of Americans with myopia also have astigmatism. Refractive errors are usually corrected by eyeglasses or contact lenses.[web.archive.org] The central corneal thicknesses were normal in both eyes of all five patients.[ncbi.nlm.nih.gov] Refractive Errors About 120 million people in the United States wear eyeglasses or contact lenses to correct nearsightedness, farsightedness, or astigmatism.[web.archive.org]

  • Interstitial Keratitis

    Miscellaneous conditions Astigmatism In this condition, the corneal shape is slightly rugby ball-shaped rather than truly spherical, causing a refractive error.[patient.info] The corneal thickness was 494 microns, as measured by AS-OCT.[dovepress.com] Confocal microscopy showed decreased endothelial cell density, pleomorphism, polymegathism, and hyperreflective fibrocellular rods with central hollow.[dovepress.com]

  • Bullous Dystrophy Type Macular

    errors (myopia, hyperopia, and astigmatism) For more information on any of the above conditions and disorders, please visit geteyesmart.org, the official eye health information[weillcornelleye.org] […] endothelial dysfunction may be at higher risk for developing PBK SIGNS Increased corneal thickness (normal cornea 532 /- 18.8 um thick centrally) Stromal edema Sub-epithelial[webeye.ophth.uiowa.edu] Error (the need for a change in glasses) A need for glasses leads to blurred vision.[richmondeye.com]

  • Brittle Cornea Syndrome Type 2

    Refractive errors (myopia, astigmatism). Strabismus.[patient.info] The progressive corneal thinning associated with keratoconus [mean central corneal thickness (CCT) 450-500 μm] results in myopia, irregular corneal astigmatism and finally[omicsonline.org] In early stages, the patient is asymptomatic, but subsequently the visual acuity gradually decreases [ 4 ].[omicsonline.org]

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