Publications by authors named "Teruhito Kuroda"
Purpose: To develop a keratoconus detection algorithm using the corneal topographic data of the anterior and posterior corneal surfaces.
Methods: Topographic measurements of the cornea were made with a slit-scanning corneal topographer. We examined 120 subjects (165 eyes); keratoconus patients and keratoconus suspect patients comprised the keratoconus group, and post-photorefractive keratectomy patients, with-the-rule astigmatism patients, and controls without disease comprised the nonkeratoconus group.
Purpose: To compare the ocular and corneal higher-order aberrations (HA) in eyes of different ages.
Design: Observational cross-sectional study.
Methods: Sixty-six eyes of 66 normal subjects (age range 4-69 years; average 37.
Purpose: To predict the visual deterioration of eyes with cortical (CC) or nuclear (NC) cataract from objective data on ocular higher-order aberration (HOA) and forward (FLS) and backward light scattering (BLS).
Setting: Osaka University Medical School, Osaka, Japan.
Methods: Twenty-two eyes with mild NC, 41 eyes with mild CC, and 11 normal eyes were examined.
Wavefront analysis of an eye with monocular triplopia and nuclear cataract.
Am J Ophthalmol
February 2004
Purpose: To determine whether higher-order aberrations explain patient-reported monocular triplopia.
Design: Observational case report.
Method: A patient complaining of monocular triplopia was examined with a Hartmann-Shack aberrometer to determine whether higher-order wavefront aberrations could account for the triplopia.
Purpose: To investigate changes of spherical aberration in eyes with accommodative spasm.
Design: Case reports.
Methods: Four eyes of two patients with accommodative spasm were studied.
The purpose was to compare the ocular higher-order aberrations and the visual performance between photorefractive keratectomy (PRK) and laser in situ keratomileusis (LASIK). Ocular aberrations and visual performance were measured after PRK in 26 eyes, after LASIK in 39 eyes, and in 29 normal myopic control eyes. Ocular aberrations were measured with a Hartmann-Shack aberrometer.
View Article and Find Full Text PDFPurpose: To study the effect of accommodation on ocular aberrations.
Design: Observational case series.
Methods: The ocular aberrations in 33 eyes of 33 young adults were measured with a Hartmann-Shack wavefront aberrometer before and during 3 diopters of accommodation.
Article Synopsis
- - The study aimed to compare the eye distortions (aberrations) between individuals with keratoconus (a condition causing irregular corneal shape) and those with normal vision.
- - It involved 35 eyes of keratoconus patients and 38 normal controls, using advanced sensors to measure specific higher-order aberrations caused by the cornea.
- - Results showed that keratoconic eyes had significantly greater higher-order aberrations, particularly in the form of coma-like distortions, which were 2.32 times more pronounced than spherical-like aberrations, helping distinguish between normal and keratoconic eyes.
Purpose: To study the effect of aging on ocular light scatter and higher order aberrations in humans.
Methods: Seventy-six eyes of 76 normal subjects who had refractive errors but no ocular disease were studied. Their age ranged from 4 to 69 years (mean 34.
Article Synopsis
- The study aimed to explore how tear film break-up affects optical wavefront aberrations in normal subjects.
- Using a Hartmann-Shack wavefront sensor, researchers analyzed higher-order aberrations in 20 eyes before and after tear film break-up.
- Results showed a significant increase in higher-order aberrations for both photopic and scotopic vision after tear film break-up, highlighting the importance of accounting for this when measuring wavefront aberrations for eye surgeries.
Purpose: To compare the higher-order aberrations of the oculus (whole eye) and cornea in eyes with mild cortical or nuclear cataract and to estimate the effect of ocular higher-order aberrations on the loss of contrast sensitivity using wavefront analysis.
Design: Observational case series.
Methods: Six eyes of four patients with mild nuclear cataract, 18 eyes of 14 patients with mild cortical cataract, and nine eyes of nine normal patients were examined.
Purpose: To find the most appropriate color-coded scales for the anterior and posterior elevation maps of scanning slit topography in the screening of abnormal corneas such as keratoconus.
Design: Retrospective case-control study.
Participants: Eighty eyes of 40 normal subjects and 175 eyes of 95 patients with keratoconus.
Wavefront analysis of higher-order aberrations in patients with cataract.
J Cataract Refract Surg
March 2002
Purpose: To determine local refractive changes and higher-order aberrations in patients with nuclear or cortical cataract.
Setting: Osaka University Medical School, Osaka, Japan.
Methods: Wavefront analysis of both ocular and corneal aberrations was performed with the Hartmann-Shack aberrometer in 2 patients, a 22-year-old woman with bilateral developmental nuclear cataract and a 68-year-old woman with mild bilateral cortical cataract.