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Journal of Ophthalmology

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https://www.readbyqxmd.com/read/28293434/visual-motor-and-perceptual-task-performance-in-astigmatic-students
#1
Erin M Harvey, J Daniel Twelker, Joseph M Miller, Tina K Leonard-Green, Kathleen M Mohan, Amy L Davis, Irene Campus
Purpose. To determine if spectacle corrected and uncorrected astigmats show reduced performance on visual motor and perceptual tasks. Methods. Third through 8th grade students were assigned to the low refractive error control group (astigmatism < 1.00 D, myopia < 0.75 D, hyperopia < 2.50 D, and anisometropia < 1.50 D) or bilateral astigmatism group (right and left eye ≥ 1.00 D) based on cycloplegic refraction. Students completed the Beery-Buktenica Developmental Test of Visual Motor Integration (VMI) and Visual Perception (VMIp)...
2017: Journal of Ophthalmology
https://www.readbyqxmd.com/read/28293433/eye-tracking-as-a-tool-to-evaluate-functional-ability-in-everyday-tasks-in-glaucoma
#2
REVIEW
Enkelejda Kasneci, Alex A Black, Joanne M Wood
To date, few studies have investigated the eye movement patterns of individuals with glaucoma while they undertake everyday tasks in real-world settings. While some of these studies have reported possible compensatory gaze patterns in those with glaucoma who demonstrated good task performance despite their visual field loss, little is known about the complex interaction between field loss and visual scanning strategies and the impact on task performance and, consequently, on quality of life. We review existing approaches that have quantified the effect of glaucomatous visual field defects on the ability to undertake everyday activities through the use of eye movement analysis...
2017: Journal of Ophthalmology
https://www.readbyqxmd.com/read/28280636/the-effect-of-high-intensity-focused-ultrasound-keratoplasty-on-rabbit-anterior-segment
#3
Menglei Wang, Meixuan Li, Pisong Yan, Qiang Luo, Yu Zhang, Zhiyu Du
Purpose. To evaluate the safety of high-intensity focused ultrasound keratoplasty as a treatment for presbyopia by examining its effect on the rabbit anterior segment. Methods. The right corneas of 36 New Zealand rabbits were treated with HIFU keratoplasty. The animals were sacrificed at 1, 7, 15, 30, 60, and 90 days after operation. Collagen type I, MMP-2, and MMP-9 were evaluated using immunohistochemistry. For the detection of apoptosis, the TUNEL method was applied. The SOD and MDA levels were analyzed with assay kits...
2017: Journal of Ophthalmology
https://www.readbyqxmd.com/read/28280635/influence-of-tear-protein-deposition-on-the-oxygen-permeability-of-soft-contact-lenses
#4
Se Eun Lee, So Ra Kim, Mijung Park
Purpose. To investigate the effect of tear protein deposition on the change in oxygen permeability (Dk) of soft contact lenses (SCL). Methods. Three hydrogel lenses (polymacon, nelfilcon A, and etafilcon A) and two silicon hydrogel lenses (lotrafilcon A and balafilcon A) were investigated. Etafilcon A lenses were incubated in artificial tear solution for 1, 6, 12, and 48 h, whereas the other SCL were incubated for 1, 3, 7, and 14 days. Oxygen permeability was measured using the polarographic method, and lenses were stacked in four layers to correct the boundary effect...
2017: Journal of Ophthalmology
https://www.readbyqxmd.com/read/28265466/safety-and-efficacy-of-two-trabecular-micro-bypass-stents-as-the-sole-procedure-in-japanese-patients-with-medically-uncontrolled-primary-open-angle-glaucoma-a-pilot-case-series
#5
Daisuke Shiba, Shingo Hosoda, Saori Yaguchi, Naoki Ozeki, Kenya Yuki, Kazuo Tsubota
Purpose. To evaluate efficacy and safety of a trabecular micro-bypass stent system when used as the sole procedure in Japanese patients with medically uncontrolled primary open-angle glaucoma (POAG). Design. Prospective nonrandomized interventional pilot study. Methods. Ten eyes of 10 Japanese patients with medically uncontrolled POAG taking three ocular hypotensive medications were treated using only the implantation of two iStent trabecular micro-bypass stents. Each patient continued to take the same ocular hypotensive medications used preoperatively throughout the study...
2017: Journal of Ophthalmology
https://www.readbyqxmd.com/read/28265465/comprehensive-evaluation-of-anterior-corneal-change-in-asphericity-calculated-by-the-tangential-radius-of-curvature-after-lasik
#6
Jinglu Ying, Jianqiu Cai, Leru Zhu, Yi Zha
To evaluate the change in the anterior corneal asphericity (ΔQ) comprehensively calculated using the tangential radius (rt ) after LASIK. Forty-two right eyes were evaluated using the Orbscan II corneal topographer. The pre- and postoperative Q-values of the flat principal semimeridians calculated by the sagittal radius were compared to those by the tangential radius. The Q-value of each semimeridian in the horizontal region was calculated by rt . Fourier fitting was used to model the 360-semimeridional variation of Q-values and to fit the Q-values in the vertical region before and after surgery...
2017: Journal of Ophthalmology
https://www.readbyqxmd.com/read/28261495/keraring-intrastromal-segment-depth-measured-by-spectral-domain-optical-coherence-tomography-in-eyes-with-keratoconus
#7
Ugo de Sanctis, Carlo Lavia, Marco Nassisi, Savino D'Amelio
Purpose. To evaluate agreement between measured and intended distance of Keraring (Mediphacos, Belo Horizonte, Brazil) intracorneal ring segments from the anterior and posterior corneal surfaces. Methods. Twenty-six Keraring ICRS implanted in 24 keratoconic eyes were examined. The distance from the Keraring apex to the anterior corneal surface and the distance from the inner and the outer corners to the posterior corneal surface were measured 3 months postoperatively using spectral-domain optical coherence tomography...
2017: Journal of Ophthalmology
https://www.readbyqxmd.com/read/28250983/quantitative-assessment-of-the-impact-of-blood-pulsation-on-intraocular-pressure-measurement-results-in-healthy-subjects
#8
Robert Koprowski, Lei Tian
Background. Blood pulsation affects the results obtained using various medical devices in many different ways. Method. The paper proves the effect of blood pulsation on intraocular pressure measurements. Six measurements for each of the 10 healthy subjects were performed in various phases of blood pulsation. A total of 8400 corneal deformation images were recorded. The results of intraocular pressure measurements were related to the results of heartbeat phases measured with a pulse oximeter placed on the index finger of the subject's left hand...
2017: Journal of Ophthalmology
https://www.readbyqxmd.com/read/28239491/efficacy-and-tolerability-of-travoprost-0-004-timolol-0-5-fixed-dose-combination-for-the-treatment-of-primary-open-angle-glaucoma-or-ocular-hypertension-inadequately-controlled-with-beta-blocker-monotherapy
#9
Simon Fabian Lerner, Ki Ho Park, Douglas A Hubatsch, Valeriy Erichev, Jose A Paczka, Timothy V Roberts
Objective. To evaluate the efficacy and tolerability of travoprost 0.004%/timolol 0.5% fixed-dose combination (TTFC) in patients with open-angle glaucoma (OAG) or ocular hypertension (OHT) inadequately controlled on beta-blocker monotherapy. Methods. In this phase IV, open-label study, 156 patients on beta-blocker monotherapy with mean intraocular pressure (IOP) between 18 and 32 mmHg were randomized (no washout period) to receive TTFC for 8 weeks (TTFC group) or to continue beta-blocker monotherapy for 4 weeks followed by TTFC for the remaining 4 weeks (beta-blocker group)...
2017: Journal of Ophthalmology
https://www.readbyqxmd.com/read/28239490/current-management-of-traumatic-macular-holes
#10
REVIEW
Wu Liu, Andrzej Grzybowski
Traumatic macular hole (TMH) is not a rare clinical condition, especially in young population. Its prognosis is of complexity and uncertainty, with a relatively high rate of spontaneous closure in some cases. Modern vitrectomy surgery plays an important role in the treatment of TMH, although the functional outcomes may be compromised by the concomitant retinal pathologies. Decision-making about the time of vitrectomy, especially in pediatric patients, remains to be clarified further.
2017: Journal of Ophthalmology
https://www.readbyqxmd.com/read/28210504/comparison-of-maximum-stretch-forces-between-femtosecond-laser-assisted-capsulotomy-and-continuous-curvilinear-capsulorhexis
#11
Mari Takagi, Takashi Kojima, Kei Ichikawa, Yoshiki Tanaka, Yukihito Kato, Rie Horai, Akeno Tamaoki, Kazuo Ichikawa
The current study reports comparing the postoperative mechanical properties of the anterior capsule between femtosecond laser capsulotomy (FLC) and continuous curvilinear capsulorhexis (CCC) of variable size and shape in porcine eyes. All CCCs were created using capsule forceps. Irregular or eccentric CCCs were also created to simulate real cataract surgery. For FLC, capsulotomies 5.3 mm in diameter were created using the LenSx® (Alcon) platform. Fresh porcine eyes were used in all experiments. The edges of the capsule openings were pulled at a constant speed using two L-shaped jigs...
2017: Journal of Ophthalmology
https://www.readbyqxmd.com/read/28197339/refractive-topographic-and-aberrometric-results-at-2-year-follow-up-for-accelerated-corneal-cross-link-for-progressive-keratoconus
#12
Ercüment Bozkurt, Engin Bilge Ozgurhan, Betul Ilkay Sezgin Akcay, Tugba Kurt, Yusuf Yildirim, Zehra Karaagaç Günaydin, Ahmet Demirok
Purpose. To report the visual, refractive, and corneal topography and wavefront aberration results of accelerated corneal cross-linking (CXL) during a 24-month follow-up. Methods. Forty-seven eyes underwent riboflavin-ultraviolet A-induced accelerated CXL treatment (30 mW/cm(2) with a total dose of 7.2 joules/cm(2)). Uncorrected distance visual acuity (UDVA), corrected distance visual acuity (CDVA), spherical and cylindrical values, keratometry (K) measurements (Ksteep, Kflat, Kavg, and Kapex), central corneal thickness, and anterior corneal aberrometric analyses including total wavefront error (WFE), total high order aberration (HOA), astigmatism, trefoil, coma, quadrafoil, secondary astigmatism, and spherical aberration were evaluated...
2017: Journal of Ophthalmology
https://www.readbyqxmd.com/read/28197338/vision-loss-and-recovery-after-baerveldt-aqueous-tube-shunt-implantation
#13
Esther Lee Kim, Jeffrey Tran, Marc Töteberg-Harms, Jasdeep Chahal, Douglas Rhee, Vikas Chopra, Brian Francis
This study aims to determine the course of vision loss after Baerveldt aqueous tube shunt placement and identify risk factors associated with unexplained severe long-term vision loss, or snuff-out. We retrospectively reviewed 247 eyes of 222 patients who underwent Baerveldt implantations at one of two academic institutions. Postoperative vision loss at 6 months following surgery was categorized as mild-to-moderate versus severe and long-term versus transient. Long-term vision loss, defined as 3 or more lines of Snellen visual acuity (VA) loss compared with preoperative VA, occurred in 63 of 247 eyes (25...
2017: Journal of Ophthalmology
https://www.readbyqxmd.com/read/28191349/video-assisted-informed-consent-for-cataract-surgery-a-randomized-controlled-trial
#14
Yuehong Zhang, Xiangcai Ruan, Haoying Tang, Weizhong Yang, Zhuanhua Xian, Min Lu
Purpose. To investigate whether adding video assistance to traditional verbal informed consent advisement improved satisfaction among cataract surgery patients. Methods. This trial enrolled 80 Chinese patients with age-related cataracts scheduled to undergo unilateral phacoemulsification surgery. Patients were randomized into two groups: the video group watched video explaining cataract-related consent information and rewatched specific segments of the video at their own discretion, before receiving traditional verbal consent advisement; the control group did not watch the video...
2017: Journal of Ophthalmology
https://www.readbyqxmd.com/read/28191348/pediatric-posttraumatic-endophthalmitis-in-china-for-twenty-years
#15
REVIEW
Yan Sheng, Wen Sun, Yangshun Gu, Andrzej Grzybowski
Pediatric posttraumatic endophthalmitis (PTE) is a rare but serious disease that frequently has a poor visual prognosis. To date, only a few English studies have focused on this disease. We perform a systematic review of the Chinese literature on pediatric PTE and describe the epidemiology, management, causative organisms, and visual acuity outcomes of reported cases in twenty years. We found that Staphylococcus epidermidis was the most common isolated organism and the use of a disposable syringe needle was the most common cause of ocular injuries in pediatric PTE in China...
2017: Journal of Ophthalmology
https://www.readbyqxmd.com/read/28191347/refractive-changes-induced-by-strabismus-corrective-surgery-in-adults
#16
Daphna Mezad-Koursh, Ari Leshno, Tomer Ziv-Baran, Chaim Stolovitch
Purpose. To investigate refractive changes after strabismus correction procedures among adults. Methods. Retrospective chart review of adult patients who had horizontal recti muscles surgery with preoperative and postoperative cycloplegic refraction measurements. The preoperative refraction was mathematically subtracted from the postoperative refraction, and the induced refractive changes were statistically analyzed. Vector analysis was used to examine the magnitude of the toric change. The proportion of clinically significant refractive change was evaluated as well...
2017: Journal of Ophthalmology
https://www.readbyqxmd.com/read/28182090/deep-sclerectomy-with-nonabsorbable-implant-t-flux-in-patients-with-pseudoexfoliation-glaucoma
#17
Pavel Studeny, Alina-Dana Baxant, Jana Vranova, Pavel Kuchynka, Jitka Pokorna
Purpose. To evaluate the effectiveness of deep sclerectomy with T-flux implant (DS T-flux) in patients with pseudoexfoliation glaucoma (PExG). Methods. 20 eyes of 18 patients with medically uncontrolled PExG have undergone DS T-flux implantation. Postoperatively we evaluated the IOP values and the frequency of complications. The minimum follow-up time was 12 months (20 eyes) and the maximum 24 months (10 eyes). Results. The mean preoperative IOP was 36.8 ± 8.7 mmHg. The IOP significantly decreased throughout all postoperative periods (P < 0...
2017: Journal of Ophthalmology
https://www.readbyqxmd.com/read/28180022/translational-devices-technologies-and-medicines-in-clinical-ophthalmology
#18
EDITORIAL
George M Saleh, M Reza Vagefi, Ioannis Athanasiadis
No abstract text is available yet for this article.
2017: Journal of Ophthalmology
https://www.readbyqxmd.com/read/28168050/the-degeneration-and-apoptosis-patterns-of-cone-photoreceptors-in-rd11-mice
#19
Hua Zhang, Xia Li, Xufeng Dai, Juanjuan Han, Yangyang Zhang, Yan Qi, Ying He, Yan Liu, Bo Chang, Ji-Jing Pang
The retinal degeneration 11 (rd11) mouse is a new animal model with rapid photoreceptor degeneration. The long-term efficacy of gene therapy has a direct relationship with the onset of photoreceptor degeneration or apoptosis, whereas the degeneration or apoptosis patterns of photoreceptors are still unclear in rd11 mice. The distribution patterns of cone function-related L- and S-opsin were examined by immunofluorescence staining, and the apoptosis was performed by TUNEL assay in rd11 mice. The expression pattern of L-opsin or S-opsin in rd11 retina at postnatal day (P) 14 was similar to the pattern observed in wildtype retina...
2017: Journal of Ophthalmology
https://www.readbyqxmd.com/read/28168049/photorefractive-keratectomy-for-residual-myopia-after-myopic-laser-in-situ-keratomileusis
#20
Kamal A M Solaiman, Sameh M Fouda, Ashraf Bor'i, Haitham Y Al-Nashar
Purpose. To evaluate the safety, efficacy, and predictability of photorefractive keratectomy (PRK) on the corneal flap for correction of residual myopia following myopic laser in situ keratomileusis (LASIK). Patients and Methods. A retrospective study on eyes retreated by PRK on the corneal flap for residual myopia after LASIK. All eyes had no enough stroma after LASIK sufficient for LASIK enhancement. Data included spherical equivalent (SE), uncorrected and best corrected visual acuity (UCVA and BCVA), central pachymetry, corneal higher order aberrations (HOAs), corneal hysteresis (CH), corneal resistance factor (CRF), and corneal haze...
2017: Journal of Ophthalmology
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