检索结果-南通市图书馆

International Journal of Ophthalmology(English edition) 2022年第8期15卷 1266-1272页

作者： Daniel M.Handzel Carsten H.Meyer Alfred Wegener Augenaerzte im Altstadt-Carree Fulda 36037Germany University Eye Hospital Philipps-UniversitätMarburg 35032Germany University Eye Hospital Rheinische Friedrich-WilhelmsUniveritätBonn 53124Germany

AIM:To explore the possibility of deploying three contactless devices(static and rotating Scheimpflug technology,spectral domain optical coherence tomography)for measuring central corneal thickness(CCT)in preoperative and postoperative examinations of cataract ***:Totally 72 patients who had undergone surgery without complications were *** CCT was measured prior to the operation,as well as on the first,5th-7th and 28th day following the operation using the Nidek NT 530-P,Sirius?,and Topcon OCT-2000 ***:A significant postoperative increase and subsequent decrease in CCT was identified with all three *** correlations were highly significant and thus reflect a very good degree of comparability at all times with the exception of the rotating Scheimpflug *** postoperative results from the latter differed significantly from the other *** correlations were Sirius/Topcon(P=0.010)and Sirius/Nidek(P<0.0005).No statistically significant difference could be identified in the comparison between Topcon and Nidek(P=0.056).CONCLUSION:All three devices are suitable for postoperative monitoring of *** measurement results are only comparable to a limited extent and not interchangeable in the course of treating a single *** is due to the different imaging technology used in the devices and the resulting modalities for conducting the measurements.

关键词： cataract surgery pachymetry corneal thickness Scheimpflug imaging optical coherence tomography

Eye rubbing-induced changes in intraocular pressure and corneal thickness measured at five locations, in subjects with ocular allergy

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

International Journal of Ophthalmology(English edition) 2015年第1期8卷 81-88页

作者： Uchechukwu L.Osuagwu Saud A.Alanazi Visual and Ophthalmic Optics Group (Chronic Disease&Ageing Domain) Institute of Health&Biomedical InnovationSchool of Optometry&Vision SciencesQueensland University of Technology Department of Optometry & Vision Sciences College of Applied Medical Sciences King Saud University

AIM: To assess the effects of eye rubbing on corneal thickness(CT) and intraocular pressure(IOP)measurements obtained 0-30 min after habitual eye rubbing in symptomatic ***: Measurements of IOP and CT were obtained at five locations(central, temporal, superior,nasal and inferior) before, and every 5min for 30 min interval after 30 s of eye rubbing, for 25 randomly selected eyes of 14 subjects with ocular allergy and 11age-matched normals. Differences in measurements were calculated in each group [Baseline measurements minus measurements recorded at each time interval after eye rubbing(for IOP), and for each corneal location(for CT)]and comparison were then made between groups(allergic versus control) for differences in any observed ***: Within groups, baseline mean IOPs in the allergic patient-group(14.2 ±3.0 mm Hg) and in the control group(13.1±1.9 mm Hg) were similar at all times,after eye rubbing(P >0.05, for all). The maximum reduction in IOP was 0.8 mm Hg in the control subjects and the maximum increase was also 0.8 mm Hg in the allergic subjects. Between groups(allergic versus control), the changes in IOP remained under 1 mm Hg at all times(P =0.2) after 30 min of eye rubbing. Between 0and 30 min of CT measurements after eye rubbing, the mean central CT(CCT), inferior CT(ICT), superior CT(SCT), temporal CT(TCT) and nasal CT(NCT) did not vary significantly from baseline values in the control and allergic-subject groups(P >0.05, for both). Between both groups, changes in CT were similar at all locations(P >0.05)except for the TC which was minimally thinner by about4.4 μm(P =0.001) in the allergic subjects than in the control subjects, 30 min following 30 s of eye ***: IOP measured in allergic subjects after30 s of habitual eye rubbing was comparable with that obtained in normal subjects at all times between 0 and30 min. Although, CT in the allergic subjects were similar to those of the control subjects at all time

关键词： allergy corneal thickness intraocular pressure eye rubbing tonometry pachymetry

Dependence of dynamic contour and Goldmann applanation tonometries on peripheral corneal thickness

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

International Journal of Ophthalmology(English edition) 2017年第10期10卷 1521-1527页

作者： Federico Saenz-Frances Claudia Sanz-Pozo Lara Borrego-Sanz Luis Ja?ez Laura MoralesFernandez Jose Maria Martinez-de-la-Casa Julian Garcia-Sanchez Julian Garcia-Feijoo Enrique Santos-Bueso Ophthalmology Department Clinico Universitario San Carlos HospitalComplutense University Institute of Knowledge Technology Complutense University

AIM：To determine the effects of peripheral corneal thickness（PCT）on dynamic contour tonometry（DCT）and Goldmann applanation tonometry（GAT）.METHODS：A cross-sectional *** created a software which calculates the corneal contour（CC）as a function of the radius from the corneal apex to each pixel of the *** software generates a central circumference with a radius of 1 mm and the remainder of the cornea is segmented in 5 rings concentric with corneal apex being its diameter not constant around the corneal circumference as a consequence of the irregular CC but keeping constant the diameter of each ring in each direction of the *** was determined as the mean thickness of the most eccentric *** weighted scatterplot smoothing（LOWESS）regression was used to determine the pattern of the relationship between PCT and both DCT and GAT ***,two multivariable linear regression models were *** each of them,the dependant variable was intraocular pressure（IOP）as determined using GAT and DCT *** both of the models the predictive variable was PCT though LOWESS regression pattern was used to model the relationship between the dependant variables and the predictor *** and sex were also introduced control variables along with their first-degree interactions with *** outcome measures include amount of IOP variation explained through regression models（R2）and regression coefficients（B）.RESULTS：Subjects included 109 eyes of 109 healthy *** regression suggested that a 2nd-degree polynomial would be suitable to model the relationshipbetween both DCT and GAT with *** PCT was introduced in both models as a linear and quadratic *** age nor sex nor interactions were statistically significant in both *** GAT model,R2was 17.14%（F=9.02;P=0.0002）,PCT linear term B was-1.163（95%CI：-1.163,-0.617）.PCT quadratic term B was 0.00081（95%CI：0.00043,0.00118）.For DCT model R2was 14.28%（F=9.29;P=0.0002

关键词： Goldmann applanation tonometry dynamic contour tonometry peripheral corneal thickness corneal thickness

Determination of Central corneal thickness in Patients with Refractive Anomalies and Emmetropy

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Open Journal of Ophthalmology 2019年第2期9卷 35-46页

作者： Mimoza Ismaili Gazmend Kacaniku Kelmend Spahiu Gentian Hoxha Наташа Накева-Jаневска Весна Димовска-Jорданова Department of Ophthalmology Faculty of MedicineUniversity Clinical Center of KosovoPristinaRepublic of Kosovo Republic of Macedonia University“Saints Cyril and Methodius” SkopjeRepublic of Macedonia

Aim: The purpose of this study was to compare measurements of CCT in emmetropia and patient with refractive anomalies. Methods: We represent a retrospective research which was conducted at the University Clinical Center of Kosovo (UCCK). In this study were included 80 patients, divided into two groups: test and a control group. Mean age was (M = 25.90, DS = 7.16), men (N = 41% or 51.3%) and women (N = 39% or 48%). Results: Results show that there were no differences in the CCT, Hyperopic (M = 545.21 DS = 52.24), Myopic (M = 547.90 DS = 47.93) and Emmetropic (M = 550.75 DS = 41.29). After measuring of the longitudinal axis and analyzing the data by means of Anova test, it appeared to be a significant difference between the analyzed groups, Hyperopic (M = 21.99, DS = 1.27), Myopics (M = 23.21, DS = 1.24), Emmetropic (M = 22.36, DS = 0.81). Results also revealed that there is correlation between the CCT and IOP, where increase CCT decreases IOP and vice versa (r = -0.26, p = 0.01). Conclusion: The results have shown that CCT is thinner in myopic but does not show correlation with hypermetropic and emmetropic. While during the measurement of central corneal thickness and eye tension it is found that there is a negative correlation between them. Keratometry has a negative correlation with CCT. While there was no correlation between CCT and age. Given the role of CCT in interpreting IOP values, it is recommended to perform a systematic CCT measurement in routine clinical practice, which would assist in the diagnosis of ocular hypertension.

关键词： corneal thickness Goldman Method Keratometry Pachymetry

Relationship between corneal biomechanical parameters and corneal sublayer thickness measured by Corvis ST and UHR-OCT in keratoconus and normal eyes

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Eye and Vision 2021年第1期8卷 6-17页

作者： Yong Li Zhiqiang Xu Qiaoli Liu Yuzhou Wang Kan Lin Jiahui Xia Shihao Chen Liang Hu School of Ophthalmology and Optometry Eye HospitalWenzhou Medical University270 Xueyuan roadWenzhou 325000ZhejiangChina National Clinical Research Center for Ocular Diseases WenzhouZhejiangChina

Background:To explore the relationship between corneal biomechanical parameters and corneal sublayer thickness using corneal visualization Scheimpflug technology(Corvis ST)and ultrahigh-resolution optical coherence tomography(UHR-OCT)in clinical and suspected keratoconus and normal ***:Cross-sectional prospective study.A total of 94 eyes of 70 participants were *** five eyes of 19 keratoconus patients,52 eyes of 34 patients showing high risk of developing keratoconus according to the Belin/Ambrosio Enhanced Ectasia Display,and each eye of 17 normal subjects were *** participants underwent Corvis ST,Pentacam,and UHR-OCT examinations at the same *** parameter A1(SP-A1),deformation amplitude ratio(DA ratio),and other biomechanical parameters were recorded using Corvis *** vertical and horizontal thickness profiles of central 3mm corneal epithelium,Bowman’s layer,and stroma as measured by the perpendicular distance between the neighboring interfaces were generated using *** flat keratometry and steep keratometry were obtained using *** of correlation was applied to explore the association between ***:Most of the biomechanical parameters and corneal sublayer thickness profiles showed statistical differences among three groups.A statistically significant linear relationship was noted between SP-A1 and DA ratio in all three ***-A1 was found to be positively correlated with epithelial and Bowman’s layer thickness in the keratoconus(KC)group,and with stromal thickness in all three *** the normal and suspected keratoconus(SKC)groups,only stromal thickness was included in the stepwise linear regression to predict SP-A1,whereas in the KC group,steep keratometry and Bowman’s layer thickness were ***:Significant and different correlations were noted between corneal stiffness and corneal sublayer thickness in different groups,indicating that corneal sublayers may play diff

关键词： Biomechanics corneal thickness Keratoconus Corvis ST UHR-OCT

Stromal lenticule addition keratoplasty with corneal crosslinking for corneal ectasia secondary to FS-LASIK:a case series

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

International Journal of Ophthalmology(English edition) 2024年第3期17卷 596-602页

作者： Li-Xiang Wang Ying-Ping Deng Meng-Zhen Xie Ke Ma Hong-Bo Yin Qiong Wang Rui Gong Jing Tang Department of Ophthalmology West China HospitalSichuan UniversityChengdu 610041Sichuan ProvinceChina West China School of Medicine Sichuan UniversityChengdu 610041Sichuan ProvinceChina

●AIM:To explore the clinical efficacy and safety of stromal lenticule addition keratoplasty(SLAK)with corneal crosslinking(CXL)on patients with corneal ectasia secondary to femtosecond laser-assisted in situ keratomileusis(FS-LASIK).●METHODS:A series of 5 patients undertaking SLAK with CXL for the treatment of corneal ectasia secondary to FS-LASIK were followed for *** lenticules were collected from patients undertaking small incision lenticule extraction(SMILE)for the correction of *** a stromal lenticule was aimed at improving the corneal thickness for the safe application of crosslinking and compensating for the thin cornea to improve its mechanical strength.●RESULTS:All surgeries were conducted successfully with no significant *** best corrected visual acuity(BCVA)ranged from 0.05 to 0.8-2 before *** pre-operational total corneal thickness ranged from 345-404μm and maximum keratometry(Kmax)ranged from 50.8 to *** the combination surgery,both the corneal keratometry(range 55.9 to 92.8)and total corneal thickness(range 413-482μm)significantly *** out of 5 patients had improvement of corneal biomechanical parameters(reflected by stiffness parameter A1 in Corvis ST).However,3 patients showed decreased BCVA after surgery due to the development of irregular astigmatism and transient *** the onset of corneal edema right after SLAK,the corneal topography and thickness generally stabilized after 3mo.●CONCLUSION:SLAK with CXL is a potentially beneficial and safe therapy for advanced corneal *** work needs to address the poor predictability of corneal refractometry and compare the outcomes of different surgical modes.

关键词： corneal ectasia femtosecond laserassisted in situ keratomileusis stromal lenticule addition keratoplasty corneal crosslinking corneal thickness corneal biomechanics

Evaluation of corneal parameter changes under different accommodative stimuli with Scheimpflug imaging-based tomography

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

国际眼科杂志 2024年第9期24卷 1357-1366页

作者： Farid J Bedrán-García David P Piñero Department of Optics Pharmacology and AnatomyUniversity of AlicanteAlicante 03690Spain

AIM:To evaluate the reliability of measurements of corneal changes with accommodation in healthy eyes using a Scheimpflug imaging-based system and how these measurements distribute in the normal ***:Prospective,non-randomized,comparative study including 27 healthy subjects(54 eyes),including emmetropia(13 eyes),myopia(17 eyes),hyperopia(4 eyes)and astigmatism(20 eyes)*** all cases,a complete eye examination was performed,including the analysis of corneal changes with different accommodative stimuli(+2.00,0.00 and-3.00 D)using the Pentacam AXL *** investigation was structured in 2 phases:repeatability analysis and characterization of accommodation-related corneal changes in healthy ***:In the repeatability analysis,the index of height asymmetry(IHA)showed the greatest variability with the three accommodative stimuli,being the results for the rest of parameters *** group of emmetropes showed significant differences with accommodative changes in the position of maximum keratometry(Kmax;Pcorneal thickness(MCT),corneal spherical aberration,and total and low order aberration root mean square(all Pcorneal changes between refractive ***,the consistency of the measurement

关键词： corneal biomechanics keratometry corneal thickness pachymetry corneal aberrations Pentacam accommodation

Correlations between corneal and optic nerve head variables in healthy subjects and patients with primary open angle glaucoma

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

International Journal of Ophthalmology(English edition) 2015年第6期8卷 1156-1161页

作者： Federico Saenz-Frances Luis Janez Lara Borrego-Sanz Clara Berrozpe-Villabona Jose Maria Martinez-de-la-Casa Laura Morales-Fernandez Julian Garcia-Sanchez Enrique Santos-Bueso Julian Garcia-Feijoo Department of Ophthalmology Clinico San Carlos HospitalComplutense University of Madrid Technology of Knowledge Institute Complutense University of Madrid

AIMTo correlate corneal variables (determined using the Pentacam) with optic nerve head (ONH) variables determined using the Heidelberg retina tomograph (HRT) in healthy subjects and patients diagnosed with primary open angle glaucoma (POAG).METHODSMeasurements were made in 75 healthy eyes and 73 eyes with POAG and correlations examined through Pearson correlation coefficients between the two sets of variables in the two subject groups. The corneal variables determined were corneal volume (CVol), central corneal thickness (CCT), overall corneal thickness (OvCT), the mean thickness of a circular zone centered at the corneal apex of 1 mm radius (zone I) and the mean thickness of several concentric rings, also centered at the apex until the limbus, each of 1 mm width (zones II to VI respectively). The ONH variables were determined using the *** following pairs of variables were correlated in the control group: CCT-disc area (DAr) (-0.48; Pcorneal thickness and optic disc area. In contrast, the POAG patients showed significant negative correlation between central and paracentral corneal thickness and the cup-disc ratio and CSM, and positive correlation between peripheral corneal thickness and HVC.

关键词： glaucoma optic nerve head corneal thickness