Abstract:
BACKGROUND:Currently, various types of toric intraocular lenses (IOL) have been manufactured and can be divided into three types according to the location of correction component; front-toric IOL (correction on anterior IOL surface), back-toric IOL (correction on posterior IOL surface), and bi-toric IOL (correction on both anterior and posterior IOL surfaces). In this study, we aimed to investigate the effectiveness of reducing corneal astigmatism of either normal or post-penetrating keratoplasty (PKP) corneas according to the type of implanted toric IOLs. METHODS:Medical records were retrospectively reviewed in 370 patients who had undergone phacoemulsification with posterior chamber toric IOL insertion (front-toric IOL, back-toric IOL or bi-toric IOL). Subjects were divided into 2 groups; subjects who had no history of corneal disease with corneal astigmatism more than 1.00 diopters (D) (G1) and subjects who received previous PKP with all corneal sutures removed and had corneal astigmatism more than 1.25 D (G2). Preoperatively intended target from SRK/T was evaluated. Refractive astigmatism and its vector analysis (J0, J45), mean numerical error (MNE) and mean absolute error (MAE) were assessed at least a month after cataract surgery. RESULTS:Mean preoperative corneal astigmatisms were 2.2 D and 4.0 D in G1 and G2, respectively. There was significant reduction of mean postoperative refractive astigmatism to 0.89 D in G1 and to 2.33 D in G2. In G1, bi-toric IOL showed significantly more improved refractive astigmatism than back-toric IOL. In G2, no difference in refractive astigmatism according to toric IOL type was observed. While G2 showed no difference in MNE among toric IOLs, in G1, bi-toric IOL showed significant hyperopic shift compared to back-toric IOL. In both groups, there was no significant difference in MAE according to type of IOL. No postoperative complications were observed. CONCLUSION:Our study suggests that all types of toric IOL are beneficial in correcting astigmatism of normal and post-PKP corneas. Noticeably, bi-toric IOL showed significantly better results in refractive astigmatism than back-toric IOL in normal cornea. However, bi-toric IOL showed a more hyperopic shift compared to back-toric IOL. Among post-PKP corneas, all types of toric IOL showed similar results.
journal_name
BMC Ophthalmoljournal_title
BMC ophthalmologyauthors
Moon J,Yoon CH,Kim MKdoi
10.1186/s12886-020-01439-4subject
Has Abstractpub_date
2020-04-28 00:00:00pages
169issue
1issn
1471-2415pii
10.1186/s12886-020-01439-4journal_volume
20pub_type
杂志文章abstract:BACKGROUND:Investigating the efficacy and safety of phacoemulsification with intraocular lens (IOL) implantation in corneal opacities. METHODS:This retrospective study was conducted in a tertiary medical center. Twenty-three eyes of 19 patients with cataracts and corneal opacities obscuring the pupillary center having...
journal_title:BMC ophthalmology
pub_type: 杂志文章
doi:10.1186/s12886-018-0765-7
更新日期:2018-04-23 00:00:00
abstract:BACKGROUND:Patients' feedback is of great importance in health care policy decisions. The Consumer Quality Index Cataract Questionnaire (CQI Cataract) was used to measure patients' experiences with quality of care after a cataract operation. This study aims to evaluate the reliability and the dimensional structure of t...
journal_title:BMC ophthalmology
pub_type: 杂志文章
doi:10.1186/1471-2415-7-14
更新日期:2007-09-19 00:00:00
abstract:BACKGROUND:Retinal dystrophies display a considerably wide range of phenotypic variability, which can make diagnosis and clinical staging difficult. The aim of the study is to analyze the contribution of retro-mode imaging (RMI) and fundus autofluorescence (FAF) to the characterization of retinal dystrophies. METHODS:...
journal_title:BMC ophthalmology
pub_type: 杂志文章
doi:10.1186/1471-2415-12-8
更新日期:2012-05-15 00:00:00
abstract:BACKGROUND:The aim of this study was to determine the interocular differences in the peripapillary retinal nerve fibre layer (RNFL), peripapillary choroidal thickness (PCT) and subfoveal choroidal thickness (SFCT) in healthy adults with isometropia, using enhanced depth imaging optical coherence tomography (EDI SD-OCT)...
journal_title:BMC ophthalmology
pub_type: 杂志文章
doi:10.1186/s12886-016-0361-7
更新日期:2016-10-19 00:00:00
abstract:BACKGROUND:To screen for visual impairment in Malaysian preschool children. METHODS:Visual screening was conducted in 400 preschool children aged 4 to 6 years. The screening involved two basic procedures; the distant visual acuity test using the Sheridan Gardiner chart and the depth perception test using the Langs ste...
journal_title:BMC ophthalmology
pub_type: 杂志文章
doi:10.1186/1471-2415-13-16
更新日期:2013-04-19 00:00:00
abstract:BACKGROUND:To investigate the clinical relevance of two different preservative formulations, we compared 1-year incidence rates of additional coding of dry eye, ocular infection, or ocular surface disease (either dry eye or ocular infection) in open-angle glaucoma and ocular hypertension patients newly treated with lat...
journal_title:BMC ophthalmology
pub_type: 杂志文章
doi:10.1186/1471-2415-11-14
更新日期:2011-06-14 00:00:00
abstract:BACKGROUND:Cavernous carotid aneurysm (CCA) represents 2-9% of all intracranial aneurysms and 15% of internal carotid artery (ICA) aneurysms; additionally, giant aneurysms are those aneurysms that are > 25 mm in size. Bilateral CCAs account for 11-29% of patients and are commonly associated with structural weaknesses i...
journal_title:BMC ophthalmology
pub_type: 杂志文章
doi:10.1186/s12886-018-0687-4
更新日期:2018-02-02 00:00:00
abstract:BACKGROUND:Orbital cellulitis is a rare cause of exudative retinal detachment. Hereby, we aimed to report the first case of exudative retinal detachment derived from orbital cellulitis in mainland China. CASE PRESENTATION:A 16-year-old girl developed severe left orbital cellulitis in 4 days. Two exudative retinal deta...
journal_title:BMC ophthalmology
pub_type: 杂志文章
doi:10.1186/s12886-020-01596-6
更新日期:2020-08-17 00:00:00
abstract:BACKGROUND:Central Serous Chorioretinopathy (CSC) has been previously reported as an infrequent complication of pregnancy that usually resolves spontaneously after delivery, with minimal or no sequel. We report a case of a severe form of CSC in an uncomplicated pregnancy with extensive subfoveal exudates and severe per...
journal_title:BMC ophthalmology
pub_type: 杂志文章
doi:10.1186/s12886-015-0169-x
更新日期:2015-12-22 00:00:00
abstract:BACKGROUND:Diabetic macular edema (DME) can be treated with different alternatives, among them Dexamethasone intravitreal implant 0.7 mg (DEX 0.7) has demonstrated that may improve both central macular thickness (CMT) and best corrected visual acuity (BCVA). This study aimed to evaluate the effect of the intravitreal d...
journal_title:BMC ophthalmology
pub_type: 杂志文章
doi:10.1186/s12886-018-1022-9
更新日期:2019-01-11 00:00:00
abstract:BACKGROUND:To report patients with age-related macular degeneration and atypical central retinal pigment epithelium (RPE) defects not attributable to geographic atrophy (GA) or RPE-tears with overlying preserved photoreceptor layers. METHODS:Multimodal imaging case-series evaluating the course of atypical RPE- defects...
journal_title:BMC ophthalmology
pub_type: 杂志文章,多中心研究
doi:10.1186/s12886-017-0452-0
更新日期:2017-05-15 00:00:00
abstract:BACKGROUND:P66Shc is partially localised within the mitochondrial fraction. It is primarily related to the generation of mitochondrial reactive oxygen species and apoptosis. Based on previous studies, we hypothesize that in the retina, p66Shc may exist and affect the development of diabetic retinopathy. The purpose of ...
journal_title:BMC ophthalmology
pub_type: 杂志文章
doi:10.1186/s12886-018-0724-3
更新日期:2018-02-27 00:00:00
abstract:BACKGROUND:To present the follow-up outcomes of a modified technique of transscleral suture fixation of posterior chamber intraocular lens (PCIOL) in eyes with inadequate capsule support. METHODS:A retrospective chart review of 21 patients underwent transscleral suture fixation of a foldable 3-looped haptics one-piece...
journal_title:BMC ophthalmology
pub_type: 杂志文章
doi:10.1186/s12886-019-1113-2
更新日期:2019-05-09 00:00:00
abstract:BACKGROUND:To analyse the associated factors, diagnosis, clinical manifestations and therapeutic effects of Acanthamoeba keratitis at a tertiary ophthalmic centre in Southern China. METHODS:A retrospective clinical study was performed in fifteen patients who were admitted to Zhongshan Ophthalmic Centre (ZOC) from Janu...
journal_title:BMC ophthalmology
pub_type: 杂志文章
doi:10.1186/s12886-017-0571-7
更新日期:2017-10-02 00:00:00
abstract:BACKGROUND:Dolosigranulum pigrum is a commensal inhabitant of the upper respiratory tract suspected to be responsible for ocular infections but no well-described case of D. pigrum corneal infection has been reported. Herein culture and PCR-sequencing-based investigations of corneal scraping specimens confirmed D. pigru...
journal_title:BMC ophthalmology
pub_type: 杂志文章
doi:10.1186/1471-2415-13-31
更新日期:2013-07-10 00:00:00
abstract:BACKGROUND:The case describes a rare entity. Most cases of IOL dislocation are associated with surgical trauma or preexisting zonulopathy. This patient presents IOL dislocation following routine exam, suggesting the need of careful evaluation of zonular integrity on pseudopahkic patients. METHODS:Patient is a 65 year ...
journal_title:BMC ophthalmology
pub_type: 杂志文章
doi:10.1186/s12886-020-1327-3
更新日期:2020-01-30 00:00:00
abstract:BACKGROUND:To evaluate the correlation between visual acuity improvement and vision-related QOL after ranibizumab treatment in Japanese patients with AMD. METHODS:In this one-year prospective, interventional, open-label, multicenter study involving four sites, patients with neovascular AMD were enrolled and observed f...
journal_title:BMC ophthalmology
pub_type: 杂志文章
doi:10.1186/s12886-021-01816-7
更新日期:2021-01-23 00:00:00
abstract:BACKGROUND:The repertoire of free-living protozoa in contact lens solutions is poorly known despite the fact that such protozoa may act as direct pathogens and may harbor intra-cellular pathogens. METHODS:Between 2009 and 2014, the contact lens solutions collected from patients presenting at our Ophthalmology Departme...
journal_title:BMC ophthalmology
pub_type: 杂志文章
doi:10.1186/s12886-016-0370-6
更新日期:2016-10-29 00:00:00
abstract:BACKGROUND:Previous techniques resulted with low rates of successful fusion after the surgeries and high necessity of additional surgeries in the treatment of thyroid orbitopathy related strabismus. In this study, reviewing the results of our patients who had surgical correction with relaxed muscle positioning techniqu...
journal_title:BMC ophthalmology
pub_type: 杂志文章
doi:10.1186/s12886-018-0974-0
更新日期:2018-11-23 00:00:00
abstract:BACKGROUND:To compare the long-term efficacy of ranibizumab versus bevacizumab for myopic choroidal neovascularization (CNV). METHODS:This was a retrospective, multicenter, comparative, non-randomized study of 64 consecutive patients with myopic CNV treated with ranibizumab (22 patients) or bevacizumab (42 patients). ...
journal_title:BMC ophthalmology
pub_type: 临床试验,杂志文章,多中心研究
doi:10.1186/1471-2415-14-69
更新日期:2014-05-21 00:00:00
abstract:BACKGROUND:Characterization of the neuro-glial profile of cells growing out of human idiopathic epiretinal membranes (iERMs) and testing their proliferative and pluripotent properties ex vivo is needed to better understand the pathogenesis of their formation. METHODS:iERMs obtained during uneventful vitrectomies were ...
journal_title:BMC ophthalmology
pub_type: 杂志文章
doi:10.1186/1471-2415-14-165
更新日期:2014-12-23 00:00:00
abstract:BACKGROUND:Silicone oil tamponade has become a mainstay in treatment of advanced retinal detachment due to multiple etiologies. The aim of this study is to assess the characteristics, fates and complications of long-term silicone oil tamponade after par plana vitrectomy (PPV), and to compare the outcomes of different s...
journal_title:BMC ophthalmology
pub_type: 杂志文章
doi:10.1186/s12886-020-01608-5
更新日期:2020-08-17 00:00:00
abstract:PURPOSE:More than 3 million cataract extractions are undertaken in India annually. Almost 60% of these operations are intracapsular Cataract Extractions. The subsequent optical correction is provided by aphakic spectacles. The aim of this study is to assess visual outcome and perceived benefits of post-operative use of...
journal_title:BMC ophthalmology
pub_type: 杂志文章
doi:10.1186/1471-2415-3-9
更新日期:2003-07-28 00:00:00
abstract:BACKGROUND:The performance of glaucoma diagnostic systems could be conceivably improved by the integration of functional and structural test measurements that provide relevant and complementary information for reaching a diagnosis. The purpose of this study was to investigate the performance of data fusion methods and ...
journal_title:BMC ophthalmology
pub_type: 杂志文章
doi:10.1186/1471-2415-11-20
更新日期:2011-08-04 00:00:00
abstract:BACKGROUND:The Heimann-Bielschowsky phenomenon (HBP) is an underrecognized condition characterized by slow, pendular, vertical oscillations of the eye accompanying monocular vision loss. Hypotropic dissociated vertical deviation (DVD) is another rare condition induced by asymmetric visual input. This report documents a...
journal_title:BMC ophthalmology
pub_type: 杂志文章
doi:10.1186/s12886-020-01502-0
更新日期:2020-06-26 00:00:00
abstract:PURPOSE:Outcome measurements currently used in chronic uveitis care fail to cover the full patient perspective. The aim of this study is to develop a conceptual model of the factors that adult patients with chronic uveitis consider to be important when evaluating the impact of their disease and treatment. METHODS:A qu...
journal_title:BMC ophthalmology
pub_type: 杂志文章
doi:10.1186/s12886-020-01388-y
更新日期:2020-03-30 00:00:00
abstract:BACKGROUND:Surgeons may be unaware of the ability of plant toxins to cause corneal damage. Therefore, corneal damage following intraocular surgery due to plant toxins may be misdiagnosed as postoperative infection. CASE PRESENTATION:A 74-year-old man presented with hyperemia and reduced visual acuity in both eyes 6 we...
journal_title:BMC ophthalmology
pub_type: 杂志文章
doi:10.1186/s12886-017-0400-z
更新日期:2017-01-18 00:00:00
abstract:BACKGROUND:To determine the accuracy of the T2 formula as applied to highly myopic eyes, to compare the T2 formula to the SRK/T and Holladay 1 formulas, and to describe possible ways to improve the estimation of corneal height and prediction error in two settings, the Hadassah Hospital, Ophthalmology Department, Jerusa...
journal_title:BMC ophthalmology
pub_type: 杂志文章
doi:10.1186/s12886-019-1226-7
更新日期:2019-11-12 00:00:00
abstract:BACKGROUND:Ocular coloboma is an excavation of ocular structures that occurs due to abnormal fusion of the embryonic optic fissure. Further, cleft lip/palate (CL/P), a congenital midline abnormality, is caused by a defect in the fusion of the frontonasal, maxillary, and mandibular prominences. No study has reported the...
journal_title:BMC ophthalmology
pub_type: 杂志文章
doi:10.1186/s12886-020-01696-3
更新日期:2020-10-19 00:00:00
abstract:BACKGROUND:This paper presents and tests a comprehensive computerised system of analysis of digital images of posterior capsule opacification (PCO). It updates and expands significantly on a previous presentation to include facilities for selecting user defined central areas and for registering and subsequent merging o...
journal_title:BMC ophthalmology
pub_type: 杂志文章
doi:10.1186/1471-2415-6-30
更新日期:2006-08-23 00:00:00