Abstract:
Purpose:To evaluate the outcomes of femtosecond laser-assisted implantation of a 355-degree intracorneal ring (ICR) (Keraring) in patients with keratoconus in the three-year follow-up. Setting:Future Femtolaser Center, Sohag, Egypt. Design:Prospective interventional case series. Patients and Methods:A prospective case series of 38 eyes of 26 patients with keratoconus had implantation of the 355-degree ICR keraring after tunnel creation with a femtosecond laser. The uncorrected visual acuities (UCVA) and best-corrected visual acuities (BCVA), sphere, cylinder, and manifest refraction spherical equivalent (SE), and mean keratometry (K), K max, and K min were evaluated preoperatively and 3, 6, 12, 24, and 36 months postoperatively, and all complications were reported. Results:38 eyes of 26 patients with mean age 25.92 ± 5.44 years were enrolled in the study, 11 were males (42.3%). The mean UCVA improved from 0.93 ± 0.21 to 0.63 ± 0.21 logMAR (P ≤ 0.001) and the mean BCVA from 0.67 ± 0.22 to 0.43 ± 0.26 logMAR (P < 0.001). The mean sphere, cylinder, and spherical equivalent have been changed dramatically from preoperative to 3 month postoperative, which is statistically significant (P ≤ 0.001), and the changes between 1 and 2 years and 2 and 3 years are also considerable and statistically significant; the K max and K min and K mean improved and the changes were statistically significant (P ≤ 0.001), and the changes between one, two, and three years were also statistically significant. The safety and efficacy indices were changed through the three-year follow-up. The complications were corneal neovascularization (36.84%), corneal melting (26.3%), and ring extrusion (31.5%) at the end of the study. Conclusions:Implantation of a 355-degree intracorneal keraring using femtosecond laser improved the visual, refractive, and topographic parameters in keratoconus patients, with a high rate of ICR extrusion and instability. The study has been registered for the Pan African Clinical Trial Registry (http://www.pactr.org) database within No: PACTR201810796878908 on 29 October 2018.
journal_name
J Ophthalmoljournal_title
Journal of ophthalmologyauthors
Abdellah MM,Ammar HGdoi
10.1155/2019/6783181subject
Has Abstractpub_date
2019-10-09 00:00:00pages
6783181eissn
2090-004Xissn
2090-0058journal_volume
2019pub_type
杂志文章abstract::Objective. We aimed to assess peripheral vascular endothelial function in open-angle glaucoma (POAG) by measuring flow-mediated dilatation (FMD). Materials and Methods. The study included 20 cases with POAG (group 1, mean age 58.68 ± 13.3 years) and 30 healthy individuals (group 2, mean age 58.68 ± 13.6 years). In all...
journal_title:Journal of ophthalmology
pub_type: 杂志文章
doi:10.1155/2014/529082
更新日期:2014-01-01 00:00:00
abstract:Methods:A total of 287 consecutive patients diagnosed with congenital SOP and 82 control subjects were included. Congenital SOP patients were grouped according to the presence (present group) or absence (absent group) of the trochlear nerve using thin-section high-resolution MRI of cranial nerves. We developed a comput...
journal_title:Journal of ophthalmology
pub_type: 杂志文章
doi:10.1155/2020/9476749
更新日期:2020-12-17 00:00:00
abstract::Idiopathic full-thickness macular hole is a severe visual impairment disease. Pars plana vitrectomy remains the primary treatment option for idiopathic full-thickness macular holes, and over 90% idiopathic full-thickness macular holes are closed by vitrectomy surgery. However, the full-thickness macular hole may close...
journal_title:Journal of ophthalmology
pub_type: 杂志文章,评审
doi:10.1155/2019/4793764
更新日期:2019-03-13 00:00:00
abstract::The leucine-rich repeat-containing G protein-coupled receptor 4 (LGR4, also called GPR48) plays a key role in multiple developmental processes, and mice lacking Lgr4 display anterior segment dysgenesis leading to early-onset glaucomatous retinal ganglion cell loss as well as defective eyelid formation. This paper will...
journal_title:Journal of ophthalmology
pub_type: 杂志文章
doi:10.1155/2013/987494
更新日期:2013-01-01 00:00:00
abstract:Purpose:To characterize the relative contributions of intraocular pressure (IOP) and intracranial pressure (ICP) on lamina cribrosa (LC) behavior, specifically LC depth (LCD) and LC peak strain. Methods:An axially symmetric finite element model of the posterior eye was constructed with an elongated optic nerve and ret...
journal_title:Journal of ophthalmology
pub_type: 杂志文章
doi:10.1155/2019/3064949
更新日期:2019-03-17 00:00:00
abstract::Aim. The aim of this study was to determine the intra- and interobserver variability of two Scheimpflug based camera systems, Pentacam and Sirius. In addition, the comparability of the measurements was tested in healthy subjects, subjects with regular astigmatism, and keratoconus patients. Methods. Intra- and interobs...
journal_title:Journal of ophthalmology
pub_type: 杂志文章
doi:10.1155/2015/315281
更新日期:2015-01-01 00:00:00
abstract:Purpose:To evaluate the efficacy and safety of the simultaneous use of short-term perfluoro-n-octane (PFO) with perfluoropropane (C3F8) gas to achieve retinal reattachment in eyes with rhegmatogenous retinal detachment (RRD) with proliferative vitreoretinopathy (PVR) grade C and multiple retinal breaks including inferi...
journal_title:Journal of ophthalmology
pub_type: 杂志文章
doi:10.1155/2020/6938627
更新日期:2020-10-07 00:00:00
abstract:Purpose:Although optical coherence tomography (OCT) is essential for ophthalmologists, reading of findings requires expertise. The purpose of this study is to test deep learning with image augmentation for automated detection of chorioretinal diseases. Methods:A retina specialist diagnosed 1,200 OCT images. The diagno...
journal_title:Journal of ophthalmology
pub_type: 杂志文章
doi:10.1155/2019/6319581
更新日期:2019-04-09 00:00:00
abstract:Purpose:To investigate the correlation between decentration index (index of height decentration, IHD) automatically calculated by the Pentacam HR software and the manually calculated inferior minus superior (I-S) value. Setting:Al Watany Eye Hospital, Cairo, Egypt. Methods:In a retrospective study, history taking, cl...
journal_title:Journal of ophthalmology
pub_type: 杂志文章
doi:10.1155/2018/7875148
更新日期:2018-10-02 00:00:00
abstract::Purpose. To analyze optical coherence tomography angiography (OCTA) findings in eyes with central serous chorioretinopathy (CSC) and to compare them with those obtained with multimodal imaging. Methods. A series of consecutive patients diagnosed with CSC, underwent OCTA and multimodal imaging, including spectral domai...
journal_title:Journal of ophthalmology
pub_type: 杂志文章
doi:10.1155/2015/134783
更新日期:2015-01-01 00:00:00
abstract::Genome-wide association study (GWAS) analysis identified three new susceptibility loci for PACG. In this study, we aimed to investigate whether these three loci in PLEKHA7, COL11A1, and PCMTD1-ST18 are associated with PAC and ocular biometric characteristics, such as axial length (AL), anterior chamber depth (ACD), an...
journal_title:Journal of ophthalmology
pub_type: 杂志文章
doi:10.1155/2013/641596
更新日期:2013-01-01 00:00:00
abstract::Purpose. To evaluate the corneal higher-order aberrations (HOA), contrast sensitivity function (CSF), and light distortion (LD) in patients undergoing orthokeratology (OK). Methods. Twenty healthy subjects (mean age: 21.40 ± 8 years) with mean spherical equivalent refractive error M = -2.19 ± 0.97 D were evaluated at ...
journal_title:Journal of ophthalmology
pub_type: 杂志文章
doi:10.1155/2016/8453462
更新日期:2016-01-01 00:00:00
abstract:Purpose:To compare the impact of visual field (VF) testing on intraocular pressure (IOP) change trends between healthy subjects and glaucoma patients. Methods:We recruited healthy volunteer subjects who did not have previous ocular diseases and open-angle glaucoma patients who were medically controlled well. IOP in bo...
journal_title:Journal of ophthalmology
pub_type: 杂志文章
doi:10.1155/2020/7936205
更新日期:2020-07-04 00:00:00
abstract::Glaucoma is one of the leading causes of blindness worldwide. Recent studies suggest that intraocular pressure (IOP) fluctuations, peaks, and rhythm are important factors in disease advancement. Yet, current glaucoma management remains hinged on single IOP measurements during clinic hours. To overcome this limitation,...
journal_title:Journal of ophthalmology
pub_type: 杂志文章,评审
doi:10.1155/2016/4727423
更新日期:2016-01-01 00:00:00
abstract::Purpose. To report the 12-month follow-up after big-bubble deep anterior lamellar keratoplasty (DALK) assisted by femtosecond laser that we have called IntraBubble. Methods. A 60 kHz IntraLase femtosecond laser (Abbott Medical Optics) firstly created a 30° angled intrastromal channel to insert the air injection cannul...
journal_title:Journal of ophthalmology
pub_type: 杂志文章
doi:10.1155/2012/264590
更新日期:2012-01-01 00:00:00
abstract:Purpose:To examine the current knowledge about the age-related processes in the anterior segment of the eye at a biological, clinical, and molecular level. Methods:We reviewed the available published literature that addresses the aging process of the anterior segment of the eye and its associated molecular and physiol...
journal_title:Journal of ophthalmology
pub_type: 杂志文章,评审
doi:10.1155/2017/1295132
更新日期:2017-01-01 00:00:00
abstract:Aims:To determine the accuracy and repeatability of new software to automatically quantify GA areas associated to age-related macular degeneration (AMD) by swept-source optical coherence tomography (SS-OCT). Settings and Design. Tertiary referral hospital in Spain. Cross-sectional and noninterventional. Methods and Mat...
journal_title:Journal of ophthalmology
pub_type: 杂志文章
doi:10.1155/2020/8204641
更新日期:2020-08-05 00:00:00
abstract::Purpose. To investigate the local relationship between quantified global-flash multifocal electroretinogram (mfERG) optic nerve head component (ONHC) and visual field defects in patients with glaucoma. Methods. Thirty-nine patients with glaucoma and 30 normal controls were enrolled. The ONHC amplitude was measured fro...
journal_title:Journal of ophthalmology
pub_type: 杂志文章
doi:10.1155/2015/397495
更新日期:2015-01-01 00:00:00
abstract::Purpose. To determine the efficacy of 23-gauge pars plana vitrectomy (PPV) for symptomatic posterior vitreous detachment (PVD) on visual acuity (VA) and quality after multifocal intraocular lenses (IOLs). Methods. In this prospective case series, patients who developed symptomatic PVD and were not satisfied with visua...
journal_title:Journal of ophthalmology
pub_type: 杂志文章
doi:10.1155/2015/156910
更新日期:2015-01-01 00:00:00
abstract::Purpose. To examine financial and clinical work productivity outcomes associated with the use of the electronic health record (EHR). Methods. 191,360 billable clinical encounters were analyzed for 12 clinical providers over a 9-year study period during which an EHR was implemented. Main outcome measures were clinical ...
journal_title:Journal of ophthalmology
pub_type: 杂志文章
doi:10.1155/2015/329819
更新日期:2015-01-01 00:00:00
abstract:PURPOSE:To evaluate the effect of preoperative intravitreal bevacizumab (IVB) injection on the surgical outcome of Ahmed glaucoma valve (AGV) implantation according to the angle status in neovascular glaucoma (NVG) eyes. MATERIALS AND METHODS:This retrospective study included 70 NVG patients who underwent AGV implanta...
journal_title:Journal of ophthalmology
pub_type: 杂志文章
doi:10.1155/2017/7672485
更新日期:2017-01-01 00:00:00
abstract::Purpose. To assess the different check sizes of pattern visual evoked potential (PVEP) in diabetic patients without retinopathy according to HbA1c levels and diabetes duration. Methods. Fifty-eight eligible patients with type 2 diabetes mellitus and 26 age- and sex-matched healthy controls were included in the study. ...
journal_title:Journal of ophthalmology
pub_type: 杂志文章
doi:10.1155/2017/8597629
更新日期:2017-01-01 00:00:00
abstract:Objective:This study aims to describe the clinical manifestations and outcomes in a cohort of older Chinese patients. Method:A retrospective study of patients aged ≥ 45 years who had a first episode of optic neuritis (ON) between May 2008 and November 2012. Clinical features at onset and last follow-up were analyzed w...
journal_title:Journal of ophthalmology
pub_type: 杂志文章
doi:10.1155/2017/3458356
更新日期:2017-01-01 00:00:00
abstract:Purpose:To evaluate the effect of corneal cap thickness on visual acuity and corneal biomechanics in small incision lenticule extraction (SMILE) for the treatment of myopia. Methods:Forty eyes of 20 patients undergoing SMILE for the treatment of myopia were enrolled in this prospective controlled study. The patients w...
journal_title:Journal of ophthalmology
pub_type: 杂志文章
doi:10.1155/2018/6040873
更新日期:2018-06-28 00:00:00
abstract::Diabetic retinopathy (DR) is a leading cause of blindness in working age adults. The objective of this study is to investigate the effects of vascular endothelial growth factor receptor 1 (VEGFR1) blockade on the complications of DR. Experimental models of diabetes were induced with streptozotocin (STZ) treatment or I...
journal_title:Journal of ophthalmology
pub_type: 杂志文章
doi:10.1155/2015/605946
更新日期:2015-01-01 00:00:00
abstract::Methylglyoxal (MG) is an intermediate of glucose metabolism and the precursor of advanced glycation end products (AGEs) found in high levels in blood or tissue of diabetic patients. MG and AGEs are thought to play a major role in the pathogenesis of diabetic retinopathy. In order to determine if zebrafish is valuable ...
journal_title:Journal of ophthalmology
pub_type: 杂志文章
doi:10.1155/2019/2746735
更新日期:2019-04-17 00:00:00
abstract::Objective. To describe the clinicoradiological and histopathological findings in a case of lacrimal gland enlargement secondary to lymphomatoid granulomatosis (LG) and to review the literature. Design. Case report and systematic literature review. Methods. A 75-year-old woman presented with right ptosis. Computerised ...
journal_title:Journal of ophthalmology
pub_type:
doi:10.1155/2010/358121
更新日期:2010-01-01 00:00:00
abstract::Purpose. To determine the efficacy of povidone-iodine (P-I) prophylaxis for ophthalmia neonatorum (ON) in Angola and to document maternal prevalence and mother-to-child transmission rates. Methods. Endocervical samples from mothers (n = 317) and newborn conjunctival smears (n = 245) were analysed by multiplex polymera...
journal_title:Journal of ophthalmology
pub_type: 杂志文章
doi:10.1155/2015/326526
更新日期:2015-01-01 00:00:00
abstract:Purpose:To evaluate intraoperative complications and utilization of adjunctive devices between microscope and intracameral illuminations during cataract surgery in the elderly over 75 years. Design:A retrospective, consecutive, interventional case series Participants. Two hundred eighty-six eyes of 184 patients older ...
journal_title:Journal of ophthalmology
pub_type: 杂志文章
doi:10.1155/2019/1594152
更新日期:2019-01-10 00:00:00
abstract:PURPOSE:To investigate the detailed distribution of corneal epithelial thickness in single sectors and its correlated characteristics in myopic eyes. METHODS:SD-OCT was used to measure the corneal epithelial thickness distribution profile. Differences of corneal epithelial thickness between different parameters and so...
journal_title:Journal of ophthalmology
pub_type: 杂志文章
doi:10.1155/2017/1018321
更新日期:2017-01-01 00:00:00