Results 171 to 180 of about 132,515 (201)
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Journal of Cataract & Refractive Surgery, 2022
Purpose: To compare the clinical outcomes, mainly including contrast sensitivity and high-order aberrations (HOAs), between wavefront-optimized (WFO) and corneal wavefront-guided (CWFG) transepithelial photorefractive keratectomy (transPRK) for preoperative HOAs >0.35 μm. Setting:
Ting, Shao +5 more
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Purpose: To compare the clinical outcomes, mainly including contrast sensitivity and high-order aberrations (HOAs), between wavefront-optimized (WFO) and corneal wavefront-guided (CWFG) transepithelial photorefractive keratectomy (transPRK) for preoperative HOAs >0.35 μm. Setting:
Ting, Shao +5 more
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Journal of Cataract and Refractive Surgery, 2010
To evaluate the repeatability of the Galilei dual-Scheimpflug analyzer in measuring corneal curvature, wavefront aberrations, pachymetry, and anterior chamber depth (ACD).Cullen Eye Institute, Baylor College of Medicine, Houston, Texas, USA.Three consecutive measurements were performed in 1 eye of each subject.
Li, Wang +2 more
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To evaluate the repeatability of the Galilei dual-Scheimpflug analyzer in measuring corneal curvature, wavefront aberrations, pachymetry, and anterior chamber depth (ACD).Cullen Eye Institute, Baylor College of Medicine, Houston, Texas, USA.Three consecutive measurements were performed in 1 eye of each subject.
Li, Wang +2 more
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Changes in corneal wavefront aberrations in microincision and small-incision cataract surgery
Journal of Cataract and Refractive Surgery, 2008To study the effect of incision size on the optical quality of the anterior cornea by comparing the changes in corneal wavefront aberrations between microincision cataract surgery (MICS) and small-incision cataract surgery (SICS).Eye Hospital of Wenzhou Medical College, Wenzhou, Zhejiang, China.This prospective randomized clinical study included 36 ...
NuXia, Tong +5 more
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Corneal Higher Order Aberrations After Myopic Wavefront-optimized Ablation
Journal of Refractive Surgery, 2013PURPOSE: To analyze the induced corneal higher order aberrations (HOAs) after wavefront-optimized ablation. METHODS: Sixty-four myopic eyes that underwent wavefront-optimized myopic LASIK were divided into three groups based on ...
David, Smadja +5 more
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Corneal First Surface Wavefront Aberrations Before and After Pterygium Surgery
Journal of Refractive Surgery, 2006ABSTRACT PURPOSE: To determine the higher order aberrations at the corneal first surface before and after surgery for pterygium. METHODS: Data were drawn from a longitudinal study of patients undergoing pterygium excision at Royal Victoria Infirmary, Newcastle upon Tyne, England between September 1998 and May 2004 ...
Pesudovs, Konrad +1 more
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Age-related changes in corneal and ocular higher-order wavefront aberrations
American Journal of Ophthalmology, 2004To investigate age-related changes in ocular and corneal higher-order wavefront aberrations and elucidate relative contributions of the cornea and the lens in the age-related changes.Observational case series.Corneal and ocular higher-order wavefront aberrations in the central 6 mm diameter were measured with videokeratography and the Hartmann-Shack ...
Shiro, Amano +6 more
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Wavefront Aberrations Associated With the Ferrara Intrastromal Corneal Ring in a Keratoconic Eye
Journal of Refractive Surgery, 2004ABSTRACT PURPOSE: To describe the optical implications of the aberration pattern of a keratoconic eye implanted with an intrastromal corneal ring (Ferrara ring). METHODS: A 32-year-old man with bilateral keratoconus had a Ferrara intrastromal corneal ring implanted in his right eye. Surgery was uneventful and both uncorrected (UCVA)
Maria Regina, Chalita, Ronald R, Krueger
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Relevance of Wavefront Aberrations of the Human Eye in Corneal Laser Surgery
Medical Laser Application, 2004Summary The classical optical errors of the human eye – myopia, hyperopia, and astigmatism – are known to reduce the visual performance of the patient eye and can be corrected by means of glasses, contact lenses, or corneal laser surgery. However, the optic of each individual eye includes also imaging errors of higher order (wavefront aberrations or ...
Michael Mrochen +5 more
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Maximum permissible lateral decentration in aberration-sensing and wavefront-guided corneal ablation
Journal of Cataract and Refractive Surgery, 2003To investigate the lateral alignment accuracy needed in wavefront-guided refractive surgery to improve the ocular optics to a desired level in a percentage of normally aberrated eyes.Department of Ophthalmology, University of Zurich, Zurich, Switzerland.The effect of laterally misaligned ablations on the optical outcome was simulated using measured ...
Bueeler M, Mrochen M, Seiler T
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Journal of Refractive Surgery, 2006
ABSTRACT PURPOSE: To compare the visual and optical performance after penetrating keratoplasty (PK) for keratoconus to normal patients and to examine the relationship between corneal wavefront aberrations and visual performance in patients with PK.
Pesudovs, Konrad, Coster, Douglas John
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ABSTRACT PURPOSE: To compare the visual and optical performance after penetrating keratoplasty (PK) for keratoconus to normal patients and to examine the relationship between corneal wavefront aberrations and visual performance in patients with PK.
Pesudovs, Konrad, Coster, Douglas John
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