Abstract:
:The purpose was to investigate the effect of decentered ablation in myopic corneal refractive surgery by simulation. Wavefront aberrations in a small pupil area (radius: 2 mm) for photopic vision and in a large pupil area (radius: 3 mm) for mesopic vision with simulated refractive surgery were analyzed using Zernike polynomials. Radii of ablation were 3, 2.5 and 2 mm. Decentrations of ablation were 0 mm and 0.5 mm. Change of the surface shape by ablation was considered a perturbation, while Gullstrand's schematic eye was used as un-perturbed optics. For photopic vision, wavefront aberrations were about the same as with un-perturbed optics. For mesopic vision, the results were heavily dependent on the radius of ablation area. When the radius was 3 mm, wavefront aberrations did not increase very much compared to un-perturbed optics. When the radius was smaller than 3 mm, spherical aberration was induced by centered ablations, and coma was also induced by decentered ablations. In conclusion, small ablation areas or subclinical decentrations of ablations could cause serious amounts of wavefront aberrations to the optics of the eye in the simulations.
journal_name
Semin Ophthalmoljournal_title
Seminars in ophthalmologyauthors
Mihashi Tdoi
10.1076/soph.18.1.41.14071subject
Has Abstractpub_date
2003-03-01 00:00:00pages
41-7issue
1eissn
0882-0538issn
1744-5205journal_volume
18pub_type
杂志文章abstract::Use of the Boston Keratoprosthesis (B-KPro) has grown significantly, both in the United States and overseas over the course of the last decade. It is the most frequently employed keratoprosthesis for the management of complex corneal blindness. Improving outcomes and reductions in devastating complications such as cor...
journal_title:Seminars in ophthalmology
pub_type: 杂志文章,评审
doi:10.3109/08820538.2014.959186
更新日期:2014-09-01 00:00:00
abstract::Evaluation of patients after trabeculectomy can be aided by the use of anterior segment imaging. Two commonly used forms of imaging are ultrasound biomicroscopy (UBM) and optical coherence tomography (OCT). Both modalities can be used to assess bleb morphology and how it affects treatment outcome, measure anterior cha...
journal_title:Seminars in ophthalmology
pub_type: 杂志文章,评审
doi:10.3109/08820538.2012.707275
更新日期:2012-09-01 00:00:00
abstract:OBJECTIVE:We would like to describe a case report of posterior ischemic optic neuropathy (PION) misdiagnosed as arteritic PION with presumed GCA which leads to missing the correct diagnosis with fatal outcome. METHODS:The clinical course of a single patient will be described including presentation, testing,diagnosis a...
journal_title:Seminars in ophthalmology
pub_type: 杂志文章
doi:10.3109/08820530903392902
更新日期:2009-11-01 00:00:00
abstract::Subconjunctival prolapse of orbital fat is an uncommon clinical entity in which intraconal orbital fat herniates into the subconjunctival space. Its diagnosis is mainly clinical in character and usually based on palpation, patient clinical history, and lesion features along with a slit lamp examination. Its pathophysi...
journal_title:Seminars in ophthalmology
pub_type: 杂志文章
doi:10.1080/08820538.2019.1576743
更新日期:2019-01-01 00:00:00
abstract::Congenital grouped albinotic retinal pigment epithelial spots (CGARPES) is a rare retinal pigment epithelium disease with multiple, white spots, generally involving the peripheral retina, with variable angiographic pattern. A 46-year-old male affected by CGARPES underwent fluorescein angiography and indocyanine green ...
journal_title:Seminars in ophthalmology
pub_type: 杂志文章
doi:10.1080/08820530490882670
更新日期:2004-09-01 00:00:00
abstract:PURPOSE:To evaluate the characteristics of macular edema (ME) before and after radial optic neurotomy (RON) detected by optical coherence tomography (OCT), in patients with central retinal vein occlusion (CRVO). DESIGN:Interventional case series. METHODS:Five eyes of 5 patients affected by CRVO underwent RON. Complet...
journal_title:Seminars in ophthalmology
pub_type: 杂志文章
doi:10.1080/08820530490519961
更新日期:2004-03-01 00:00:00
abstract::A seven-month-old male child was brought in for an eye test for poor vision and nystagmus noticed from four months of age. The child had delayed milestones of development and multiple (six times) episodes of unexplained lower respiratory tract infection (from two months of age) treated by pediatricians at different ce...
journal_title:Seminars in ophthalmology
pub_type: 杂志文章
doi:10.3109/08820538.2013.835848
更新日期:2015-05-01 00:00:00
abstract::The treatment paradigm in glaucoma classically starts with exhausting all medical therapy prior to proceeding with laser or incisional surgery, although laser-first and surgery-first strategies have been explored in randomized clinical trials. Although glaucoma drops are proven to work well to lower intraocular pressu...
journal_title:Seminars in ophthalmology
pub_type: 杂志文章,评审
doi:10.1080/08820538.2016.1228406
更新日期:2017-01-01 00:00:00
abstract:PURPOSE:To evaluate refractive errors in patients with migraine headache and to compare with healthy subjects. MATERIALS AND METHODS:This prospective case-control study includes patients with migraine and age- and sex-matched healthy subjects. Clinical and demographic characteristics of the patients were noted. Detail...
journal_title:Seminars in ophthalmology
pub_type: 杂志文章
doi:10.3109/08820538.2014.962177
更新日期:2016-01-01 00:00:00
abstract::Conventional suprathreshold retinal photocoagulation is a destructive procedure, but chorioretinal damage can be decreased by changing laser parameters and clinical endpoints. Laser effects can be localized by decreasing laser wavelength, spot size, and exposure duration, as well as by adopting threshold or subthresho...
journal_title:Seminars in ophthalmology
pub_type: 杂志文章,评审
doi:10.3109/08820539909069538
更新日期:1999-12-01 00:00:00
abstract:OBJECTIVE:The primary objective of this article is to present a summary of different types of image processing methods employed for the detection of glaucoma, a serious eye disease. INTRODUCTION:Glaucoma affects the optic nerve in which retinal ganglion cells become dead, and this leads to loss of vision. The principa...
journal_title:Seminars in ophthalmology
pub_type: 杂志文章,评审
doi:10.1080/08820538.2016.1229801
更新日期:2018-01-01 00:00:00
abstract:PURPOSE:Endothelial keratoplasty (EKP) has become increasingly popular in the treatment of corneal disease. However, the global shortage of human donor corneas limits clinical corneal transplantation. Genetically engineered (GE) pigs may provide an alternative source of corneas for EKP. The aim of this study was to eva...
journal_title:Seminars in ophthalmology
pub_type: 杂志文章
doi:10.3109/08820538.2013.787104
更新日期:2014-05-01 00:00:00
abstract:PURPOSE:To report the infrequent complications, including antielevation and adherence syndrome, after a unilateral and bilateral inferior oblique (IO) recession procedure and to discuss the possible causes. METHODS:A retrospective chart review was conducted for patients on whom unilateral or bilateral IO weakening sur...
journal_title:Seminars in ophthalmology
pub_type: 杂志文章
doi:10.3109/08820538.2015.1132332
更新日期:2017-01-01 00:00:00
abstract::Vogt-Koyanagi-Harada syndrome is a bilateral, chronic, diffuse granulomatous panuveitis associated with poliosis, vitiligo, and central nervous system and auditory signs. Increasing reports have been published to describe the clinical features of Vogt-Koyanagi-Harada syndrome. These manifestations are variable. This a...
journal_title:Seminars in ophthalmology
pub_type: 杂志文章,评审
doi:10.3109/08820538.2011.588654
更新日期:2011-07-01 00:00:00
abstract::We report two cases of primary uveal melanoma with metastatic involvement of the contralateral eye. Two female patients presented with primary choroidal melanoma. In the first case, primary enucleation of the affected eye was performed. Two years later, systemic tumor spread with contralateral choroidal melanoma was d...
journal_title:Seminars in ophthalmology
pub_type: 杂志文章
doi:10.1080/08820530701501055
更新日期:2007-07-01 00:00:00
abstract::A 50-year-old man presented with uncontrolled erythroclastic glaucoma and recurrent vitreous hemorrhage from a previously irradiated choroidal melanoma. Despite trabeculectomy, intraocular pressure became uncontrolled due to increasing bleeding from the melanoma. The vitreous hemorrhage became voluminous and could not...
journal_title:Seminars in ophthalmology
pub_type: 杂志文章
doi:10.1080/08820530801894467
更新日期:2008-03-01 00:00:00
abstract:PURPOSE:To describe the clinical features of patients with Duane retraction syndrome (DRS) and evaluate the outcomes of surgical approaches based on the characteristics of each patient. METHODS:The records of 38 Caucasian subjects with DRS were retrospectively reviewed. The patients were classified as type I, II, or I...
journal_title:Seminars in ophthalmology
pub_type: 杂志文章
doi:10.1080/08820538.2018.1554746
更新日期:2019-01-01 00:00:00
abstract:PURPOSE:To describe the in-vivo confocal microscopy corneal findings in a patient with bilateral corneal deposits caused by an underlying monoclonal gammopathy. METHODS:A 68-year-old man came to our center for an ophthalmologic examination. Besides visual acuity, the examination included slit-lamp biomicroscopy, intra...
journal_title:Seminars in ophthalmology
pub_type: 杂志文章
doi:10.3109/08820538.2012.730102
更新日期:2013-01-01 00:00:00
abstract::Normal tension glaucoma (NTG) is a common form of open-angle glaucoma that can lead to significant visual morbidity. There has been considerable debate as to whether NTG fits within the spectrum of primary open-angle glaucoma (POAG). The relative roles of intraocular pressure and pressure-independent factors in this d...
journal_title:Seminars in ophthalmology
pub_type: 杂志文章,评审
doi:10.3109/08820538.2013.771202
更新日期:2013-05-01 00:00:00
abstract:PURPOSE:Evaluating the ocular manifestation and fundus fluorescein angiography (FA) findings of patients with Behçet's disease as well as the relationship between visual acuity and angiographic findings. METHODS:Retrospective chart review of patients with Behçet's disease seen at the Farabi Eye Hospital. RESULTS:Fort...
journal_title:Seminars in ophthalmology
pub_type: 杂志文章
doi:10.1080/08820538.2016.1178310
更新日期:2017-01-01 00:00:00
abstract:PURPOSE:To estimate the prevalence and risk factors for polypoidal choroidal vasculopathy (PCV) in a general Japanese population. METHODS:This population-based, cross-sectional study was conducted in 2007 with subjects from the Hisayama Study. Of the 3,648 residents in Hisayama, Japan, 2,663 who were ≥ 50 years old we...
journal_title:Seminars in ophthalmology
pub_type: 杂志文章,多中心研究
doi:10.1080/08820538.2018.1506483
更新日期:2018-01-01 00:00:00
abstract::Acute acquired comitant esotropia (AACE) is characterized by a sudden-onset eye misalignment with an equal angle of deviation in all fields of gaze. This form of esotropia is distinct from common forms of childhood esotropia, such as infantile esotropia and accommodative esotropia, in the rapid tempo and typically lat...
journal_title:Seminars in ophthalmology
pub_type: 杂志文章,评审
doi:10.1080/08820538.2016.1228398
更新日期:2017-01-01 00:00:00
abstract::In the herpetic stromal keratitis (HSK), HSV DNA fragments and HSV-IgG immune complexes (HSV-IC) are present in most of the corneas long after infective virus has disappeared. These viral components are highly immunogenic and potentiate production of proinflammatory cytokines and chemokines via Toll-like receptors (TL...
journal_title:Seminars in ophthalmology
pub_type: 杂志文章,评审
doi:10.1080/08820530802111408
更新日期:2008-07-01 00:00:00
abstract::Age-related macular degeneration (AMD) is the leading cause of blindness in the elderly, and the advent of anti-vascular endothelial growth factor agents (VEGF) has revolutionized treatment for neovascular AMD. Two of the most popular anti-VEGF agents, ranibizumab (Lucentis; Genentech/Roche) and bevacizumab (Avastin; ...
journal_title:Seminars in ophthalmology
pub_type: 杂志文章,评审
doi:10.3109/08820538.2016.1154174
更新日期:2016-01-01 00:00:00
abstract::Lymphomatoid papulosis (LyP) is a chronic papulonecrotic or papulonodular skin disease, with histological features suggestive of malignant lymphoma. It was originally described by Macauley (1968) as a "self-healing paradoxical eruption, histologically malignant but clinically benign." Unless accompanied by systemic ...
journal_title:Seminars in ophthalmology
pub_type: 杂志文章
doi:10.3109/08820538.2012.680643
更新日期:2013-01-01 00:00:00
abstract:OBJECTIVE:Investigate risk factors for unplanned return to the operating room after resident-performed cataract surgery. DESIGN:Retrospective case-control study. SETTING:Institutional. METHODS:Study population: All patients with reoperation within 90 days of resident-performed phacoemulsification were matched to fou...
journal_title:Seminars in ophthalmology
pub_type: 杂志文章
doi:10.1080/08820538.2016.1208760
更新日期:2018-01-01 00:00:00
abstract::Age-related macular degeneration (AMD) is a common cause of legal blindness in the developed countries in people older than 50 years of age. AMD complicated by choroidal neovascular membranes (CNV) accounts for 12% of AMD, but for 88% of legal blindness cases. Because of the progressive aging of the population, it is ...
journal_title:Seminars in ophthalmology
pub_type: 杂志文章,评审
doi:10.3109/08820539909056057
更新日期:1999-03-01 00:00:00
abstract::Laser photocoagulation of the entire area of the neovascular lesion is the only proven treatment for subfoveal choroidal neovascularization secondary to age-related macular degeneration with a poor natural history. However, there are some limiting factors such as patient eligibility, a significant decline in visual ac...
journal_title:Seminars in ophthalmology
pub_type: 杂志文章,评审
doi:10.3109/08820539809066080
更新日期:1998-03-01 00:00:00
abstract:PURPOSE:To employ optical coherence tomography (OCT) to examine the relationship of changes in the retinal nerve fiber layer (RNFL) and macular thickness as well as ganglion cell (GC) parameters with the stage of keratoconus (KC), and to compare these changes with a control group. METHODS:A total of 84 eyes of 68 pati...
journal_title:Seminars in ophthalmology
pub_type: 杂志文章
doi:10.3109/08820538.2016.1169302
更新日期:2017-01-01 00:00:00
abstract:INTRODUCTION:Vernal keratoconjunctivitis (VKC) is a bilateral multi-factorial disease. The pathogenesis of this disease is not obviously determined, but the role of various inflammatory cytokines has been specified. This study has provided a comparison between the level of interleukin-17 (IL17) in the serum and tears o...
journal_title:Seminars in ophthalmology
pub_type: 杂志文章
doi:10.3109/08820538.2016.1170162
更新日期:2017-01-01 00:00:00