Sustained Convergence, Axial Length, and Corneal Topography
نویسندگان
چکیده
منابع مشابه
Emmetropisation, axial length, and corneal topography in teenagers with Down's syndrome.
AIM To study the refractive status and corneal topography in Down's syndrome. METHOD A matched cohort subgroup of 50 individuals with Down's syndrome in the Manchester area aged 15-22 years was studied by refraction, corneal topography, A-scan biometry, slit lamp examination, and orthoptic examination. RESULTS (1) A linear relation was found between axial length and spherical equivalent ref...
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PURPOSE To determine if a direct relationship exists between the two common measures of corneal topography--axial and instantaneous powers--that are based on corneal slope or curvature, respectively. METHOD The theoretical relationship between axial and instantaneous powers was derived for unrestricted shapes using equations of basic calculus. RESULTS It was found that axial power at any po...
متن کاملRelationship between central corneal thickness, refractive error, corneal curvature, anterior chamber depth and axial length.
BACKGROUND To determine the relationship between central corneal thickness (CCT), refractive error, corneal curvature, anterior chamber depth and axial length in normal Taiwanese Chinese adults. METHODS Five hundred normal Taiwanese Chinese patients aged 40-80 years were recruited for the study. Measurement procedures included CCT, refractive error, corneal curvature, anterior chamber depth a...
متن کاملAnalysis of the horizontal corneal diameter, central corneal thickness, and axial length in premature infants.
PURPOSE To determine the horizontal corneal diameter, central corneal thickness, and axial length in premature infants. METHODS Infants with a birth weight of less than 2,500 g or with a gestation period of less than 36 weeks were included in the study. Infants with retinopathy of prematurity (ROP) were allocated to Group 1 (n=138), while those without ROP were allocated to Group 2 (n=236). A...
متن کاملEffect of central corneal thickness, corneal curvature, and axial length on applanation tonometry.
OBJECTIVE To evaluate the effect of central corneal thickness (CCT), corneal curvature, and axial length on applanation tonometry in an in vivo study. METHODS In a masked, prospective clinical trial, we examined 125 eyes of 125 patients scheduled for cataract surgery. Corneal curvature was measured by means of keratometry and axial length by A-scan ultrasonography. By cannulating the anterior...
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ژورنال
عنوان ژورنال: Optometry and Vision Science
سال: 2010
ISSN: 1040-5488
DOI: 10.1097/opx.0b013e3181c07923