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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[] A following receiver operating characteristic (ROC) analysis was performed to reveal the variables best used to discriminate healthy eyes from early ectatic eyes.[] The rate of progression is variable.[]

  • 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.[]

  • 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[]

  • Posterior Subcapsular Cataract

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

  • Recurrent Corneal Erosion

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

  • Isolated Congenital Sclerocornea

    DERMOID  MANAGEMENT :  Correction of astigmatism with spectacles  Patching to treat amblyopia  SURGERY :  Complete excision flush with corneal surface, with lamellar[] 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[]

  • Central Corneal Ulcer

    Decreased visual acuity may be due to a high degree of irregular astigmatism.[] 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[]

  • Orbital Neoplasm

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

  • 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[]

  • Salti-Salem Syndrome

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

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