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75 Possible Causes for Variable Astigmatism

  • Keratoconus

    Consider other causes of irregular oblique astigmatism, imprecise variable subjective refractions and noninflammatory central corneal scarring, such as corneal surgery, healed[web.archive.org] A following receiver operating characteristic (ROC) analysis was performed to reveal the variables best used to discriminate healthy eyes from early ectatic eyes.[ncbi.nlm.nih.gov] The rate of progression is variable.[doi.org]

  • Retinal Cone Dystrophy Type 3B

    All patients were myopic with variable degrees of astigmatism; patients of the ALP group showed a slight tendency for higher myopia and astigmatism.[journals.plos.org]

  • Coronary Cataract

    This has variable effects on the adjacent lens cortex: opacification sometimes occurs, or it may manifest as a high degree of astigmatism that can be irregular but without[entokey.com]

  • Posterior Subcapsular Cataract

    With all this data analysis, we decided to use the information of both eyes of the same patient as independent variables.[journalofoptometry.org] The differences between cataract morphology, grade of opacity, spherical refractive error shift, and astigmatic changes in refraction were determined with analysis of variance[journalofoptometry.org]

  • Recurrent Corneal Erosion

    Haze was analysed as dichotomous variable. Adverse effects: astigmatism (mean magnitude) measured in dioptres. Higher value is worse astigmatism.[doi.org]

  • Isolated Congenital Sclerocornea

    DERMOID  MANAGEMENT :  Correction of astigmatism with spectacles  Patching to treat amblyopia  SURGERY :  Complete excision flush with corneal surface, with lamellar[slideshare.net] DERMOID Grade I Grade II Grade III Most frequent Rarest Small (5mm) Larger Single Inferotemporal limbus Entire corneal surface Superficial Variable depth of stromal extension[slideshare.net]

  • Central Corneal Ulcer

    Decreased visual acuity may be due to a high degree of irregular astigmatism.[ophthalmologymanagement.com] The typical slit lamp findings are that of a crescent-shaped, gray-white infiltrate involving the peripheral cornea with variable degrees of epithelial ulceration and stromal[ophthalmologymanagement.com]

  • Orbital Neoplasm

    The clinical course of growth, followed by growth plateau and regression, is highly variable.[aao.org] During the interim, differentiation from malignant tumors and observation for complications associated with occlusion amblyopia or corneal astigmatism determine whether early[aao.org]

  • Familial Pterygium of the Conjunctiva

    We assessed their demographic variables, history of recurrence, pterygium size and grade [ 12 ], corneal astigmatism, refractive astigmatism, and uncorrected visual acuity[synapse.koreamed.org]

  • Salti-Salem Syndrome

    […] corneal thickness and astigmatism.[lotuseye.org] […] intraocular pressure measurement, tonopen provides a quick and reliable measurement in scarred, irregular corneas and in post penetrating keratoplasty where there may be variable[lotuseye.org]

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