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laser in ophthalmology

Camila V Ventura, Maria Paula Fernandez, Ivan A Gonzalez, Delia M Rivera-Hernandez, Roberto Lopez-Alberola, Maria Peinado, Angelica A Floren, Patricia A Rodriguez, Basil K Williams, Gabriela de la Vega Muns, Ana J Rodriguez, Catherin Negron, Brenda Fallas, Audina M Berrocal
A 6-day-old female baby with known diagnosis of congenital Zika infection was referred for ophthalmologic examination. The mother (37 years old) was referred for a pruritic rash, conjunctival hyperemia, and malaise at 12 weeks of gestation while still living in Venezuela. Upon arrival to Miami, Zika virus (ZIKV) exposure was confirmed during prenatal screening. At birth, due to the known exposure, a complete congenital ZIKV workup was performed, including brain ultrasound and MRI, which disclosed calcifications in the frontal lobe...
October 1, 2016: Ophthalmic Surgery, Lasers & Imaging Retina
Stefan J Lang, Bertan Cakir, Charlotte Evers, Franziska Ludwig, Clemens A K Lange, Hansjürgen T Agostini
BACKGROUND AND OBJECTIVE: The introduction of optical coherence tomography angiography (OCTA) provides new insights into the retinal vasculature. The aim of this study was to explore the value of OCTA in imaging retinal hemangioblastomas and monitoring laser treatment in patients with von Hippel-Lindau (VHL) disease. PATIENTS AND METHODS: Ten eyes of 10 patients with VHL disease were included in this retrospective case series. All patients underwent complete ophthalmological work-up including OCTA for retinal and optic nerve head hemangioblastoma...
October 1, 2016: Ophthalmic Surgery, Lasers & Imaging Retina
Fabiana Q Silva, Mehreen Adhi, Karen M Wai, Leann Olansky, M Cecilia Lansang, Rishi P Singh
BACKGROUND AND OBJECTIVE: The purpose of this study was to identify whether endocrinologists and primary care physicians (PCP) adequately screen for ophthalmic symptoms/signs within office visits and provide timely ophthalmology referrals in patients with diabetes. PATIENTS AND METHODS: Patients between the ages of 18 years and 80 years with diabetes who underwent an office visit with an endocrinologist or a PCP between January 1, 2014, and December 31, 2014, were identified...
October 1, 2016: Ophthalmic Surgery, Lasers & Imaging Retina
Mehmet Murat Uzel, Mehmet Citirik, Cagri Ilhan, Merve Inanc
BACKGROUND AND OBJECTIVE: To evaluate the effect of preoperative intravitreal bevacizumab (IVB) (Avastin; Genentech, South San Francisco, CA) injection on the choice of endotamponade at the end of surgery in patients who underwent pars plana vitrectomy (PPV) for diabetic tractional retinal detachment (DTRD). PATIENTS AND METHODS: Seventy-eight patients who had DTRD with macular involvement and underwent PPV by a single surgeon from January 2012 to May 2015 were included...
October 1, 2016: Ophthalmic Surgery, Lasers & Imaging Retina
Brent A Bell, Alex Yuan, Rose M Dicicco, Joseph Fogerty, Emma M Lessieur, Brian D Perkins
Non-invasive imaging is an invaluable diagnostic tool in ophthalmology. Two imaging devices, the scanning laser ophthalmoscope (SLO) and spectral domain optical coherence tomography (SDOCT), emerged from the clinical realm to provide research scientists with a real-time view of ocular morphology in living animals. We utilized these two independent imaging modalities in a complementary manner to perform in vivo optical sectioning of the adult zebrafish retina. Due to the very high optical power of the zebrafish lens, the confocal depth of field is narrow, allowing for detailed en face views of specific retinal layers, including the cone mosaic...
October 6, 2016: Experimental Eye Research
Michael R R Böhm, Christoph Tappeiner, Marc A Breitbach, Beatrix Zurek-Imhoff, Carsten Heinz, Arnd Heiligenhaus
PURPOSE: To analyze occurrence, risk factors, and course of ocular hypotony (OH) in juvenile idiopathic arthritis-associated uveitis (JIAU). DESIGN: Cohort study METHODS: Epidemiological and ophthalmological data at baseline and during follow-up of JIAU patients with and without ocular hypotony were evaluated. RESULTS: OH developed in 57 of the 365 JIAU patients during the follow-up (mean 4.5±3.5 years). In 40 patients with follow-up ≥ 12 months, OH was unrelated to previous ocular surgery: risk factors at baseline (univariate logistic regression analysis) included longer total duration of uveitis (OR 1...
September 21, 2016: American Journal of Ophthalmology
Stuart L Fine, Morton F Goldberg, William Tasman
We were challenged and delighted when Dr. Sharon Solomon, guest editor of this Retina Supplement, invited us to reminisce about caring for patients with common retinal disorders before there was access to the diagnostic and therapeutic tools that are readily available today. We agreed to confine our remarks to 3 common, but serious, conditions: age-related macular degeneration (Dr. Fine), diabetic retinopathy (Dr. Goldberg), and retinal detachment (Dr. Tasman). Each of us completed our ophthalmology training about half a century ago...
October 2016: Ophthalmology
Pierluigi Iacono, Maurizio Battaglia Parodi, Matteo Scaramuzzi, Francesco Bandello
BACKGROUND: To evaluate the effects of dexamethasone implant in eyes affected by recalcitrant diabetic macular oedema (DME) associated with proliferative diabetic retinopathy (PDR). METHODS: Thirteen consecutive patients with centre-involving DME associated with PDR, central macular thickness (CMT) ≥300 µm, previous therapy with panretinal photocoagulation, focal/grid laser treatment and anti-vascular endothelial growth factor injection were prospectively enrolled...
September 13, 2016: British Journal of Ophthalmology
William C Y Lo, Néstor Uribe-Patarroyo, Ahhyun S Nam, Martin Villiger, Benjamin J Vakoc, Brett E Bouma
Conventional thermal therapy monitoring techniques based on temperature are often invasive, limited by point sampling, and are indirect measures of tissue injury, while techniques such as magnetic resonance and ultrasound thermometry are limited by their spatial resolution.  The visualization of the thermal coagulation zone at high spatial resolution is particularly critical to the precise delivery of thermal energy to epithelial lesions. In this work, an integrated thulium laser thermal therapy monitoring system was developed based on complex differential variance (CDV), which enables the 2D visualization of the dynamics of the thermal coagulation process at high spatial and temporal resolution with an optical frequency domain imaging system...
September 14, 2016: Journal of Biophotonics
Lorena Romero-Diaz-de-Leon, Juan Carlos Serna-Ojeda, Alejandro Navas, Enrique O Graue-Hernández, Arturo Ramirez-Miranda
PURPOSE: To report the rate of flap-related complications in LASIK surgery performed by in-training ophthalmology residents and to analyze the risk factors for these complications. METHODS: We analyzed 273 flap dissections in 145 patients from March 2013 to February 2014. We included all LASIK surgeries performed by 32 ophthalmology residents using a Moria M2 microkeratome. All the flap-related complications were noted. Comparison between both groups with and without complications was performed with an independent Student's t-test and relative risks were calculated...
July 2016: Journal of Ophthalmic & Vision Research
Takehiro Yamashita, Taiji Sakamoto, Naoya Yoshihara, Hiroto Terasaki, Minoru Tanaka, Yuya Kii, Kumiko Nakao
PURPOSE: Eyes with a peripapillary nerve fiber elevation (pNFE) are those with a discrepancy between the optic disc margin in a color fundus photograph and the Bruch's membrane opening in an optical coherent tomographic (OCT) cross-sectional image. The purpose of this study was to determine the prevalence of pNFE in young healthy eyes, and to compare the axial length and optic disc tilt between pNFE and non-pNFE groups. METHODS: This was a prospective, observational, cross-sectional study of 117 right eyes...
August 1, 2016: Investigative Ophthalmology & Visual Science
Tomoko Hasegawa, Sotaro Ooto, Kohei Takayama, Yukiko Makiyama, Tadamichi Akagi, Hanako O Ikeda, Hideo Nakanishi, Kenji Suda, Hiroshi Yamada, Akihito Uji, Nagahisa Yoshimura
PURPOSE: To investigate photoreceptor changes in eyes with glaucoma. DESIGN: Cross-sectional study. METHODS: The study included 35 eyes of 35 patients with primary open angle glaucoma who had suffered parafoveal visual field loss at least 3 years previously, as well as 21 eyes of 21 normal subjects. Eyes with an axial length ≥ 26.0 mm were excluded. All subjects underwent a full ophthalmologic examination, including spectral-domain optical coherence tomography (SD-OCT) and prototype adaptive-optics scanning laser ophthalmoscopy (AO-SLO) imaging...
August 23, 2016: American Journal of Ophthalmology
Stephen G Schwartz, Joshua Pasol, Byron L Lam, Harry W Flynn
Patients with post-geniculate neurologic disease and corresponding visual field loss may have ophthalmologic abnormalities detectable by spectral-domain optical coherence tomography (SD-OCT), presumably by transsynaptic retrograde retinal degeneration. Here, three such patients (ages 13 years through 75 years) illustrate thinning of the macula and ganglion cell complex corresponding to zones of visual field loss. Thinning of the retinal nerve fiber layer is not notable in these patients. SD-OCT may be a useful technique in diagnosing and following patients with post-geniculate neurologic disease...
August 1, 2016: Ophthalmic Surgery, Lasers & Imaging Retina
Maria Nilsson, Ann Hellström, Lena Jacobson
PURPOSE: Cryotherapy, introduced in the mid-1980s, was the first treatment of severe retinopathy of prematurity (ROP) and resulted in ablation of larger retinal areas than did its later substitute, laser treatment. We defined the characteristics of the retinal structure and assessed visual function, in adult ex-preterms treated with cryotherapy. METHODS: A total of 28 ex-preterms, included in a prospective study of infants born in Stockholm between September 1988 and March 1993, were treated with cryotherapy because of severe ROP...
July 1, 2016: Investigative Ophthalmology & Visual Science
Anna Stage Vergmann, Anders Højslet Vestergaard, Jakob Grauslund
PURPOSE: To test the validity of the eyesi surgical simulator as an assessment tool in a virtual reality vitreoretinal training programme. METHODS: In collaboration with an experienced vitreoretinal surgeon, a virtual vitreoretinal training programme was composed on the eyesi surgical simulator, software version 2.9.2 (VRmagic GmbH, Manheim, Germany). It was completed twice by three groups: 20 medical students, ten residents of ophthalmology and five trained vitreoretinal surgeons...
August 18, 2016: Acta Ophthalmologica
Marco Coassin, Alfonso Iovieno, Anna Soldani, Silvio Cavuto, Luca Cimino, Antonio Sartori, Debora Formisano, Luigi Fontana
PURPOSE: To study with laser flare photometry the antiinflammatory effect of bromfenac added to a topical steroid versus a topical steroid alone in patients with pseudoexfoliation (PXF) syndrome after cataract surgery. SETTING: Ophthalmology Unit, Santa Maria Nuova Hospital, Reggio Emilia, Italy. DESIGN: Randomized clinical trial. METHODS: Patients with cataract and clinical signs of PXF were randomized to dexamethasone 0...
August 2016: Journal of Cataract and Refractive Surgery
F J Zhang, Y Z Song
With the improvement and application of excimer laser and femtosecond laser equipment in clinical ophthalmology, the diversified strategies for corneal refractive surgery candidates have been provided. Based on the trend of " all-laser treatment", it is very necessary to take the domestic situation into consideration when a standard and customized choice is made according to the indications of each specific surgical type. The characteristics and limitations of various surgeries are elucidated and commented here in order to provide some reasonable treatment options for refractive surgery...
July 2016: [Zhonghua Yan Ke za Zhi] Chinese Journal of Ophthalmology
J Jankowska-Szmul, D Dobrowolski, K Krysik, J Kwas, M Nejman, E Wylegala
BACKGROUND: The purpose of this work was to study the evolving trends in techniques and indications for corneal transplantation in Poland. METHODS: This retrospective, descriptive analysis of corneal transplantations was performed at the Ophthalmology Department of Saint Barbara Hospital, Trauma Center, Sosnowiec, Poland, between 1988 and 2014. Structure of indications and surgery type rates over 26 years were tabulated by means of 5-year intervals. RESULTS: Between 1989 and 2014, 1762 corneal transplantations were performed, including 1375 (78%) cases of penetrating keratoplasty, 137 (8%) lamellar keratoplasty, 112 (6%) patch grafts, and 138 (8%) keratolimbal allografts...
June 2016: Transplantation Proceedings
Giuseppe Giannaccare, Michela Fresina, Luca Agnifili, Piera Versura
PURPOSE: To analyze ocular-surface temperature changes after microincision cataract surgery and to correlate them with surgical, clinical, and laboratory parameters. SETTING: Ophthalmology Unit, Saint Orsola-Malpighi Hospital, Bologna, Italy. DESIGN: Prospective case series. METHODS: Patients affected by monolateral senile cataract were examined preoperatively and 7 days and 28 days postoperatively. Infrared thermography was used to measure the temperature soon after eye opening, the temperature after 10 seconds of sustained eye opening, and the difference between these 2 values in the central cornea, nasal limbus, and temporal limbus...
July 2016: Journal of Cataract and Refractive Surgery
Céline Mebsout Pallado, Anne Sikorav, Oudy Semoun, Camille Jung, Eric H Souied
BACKGROUND AND OBJECTIVE: To quantify the progression of macular atrophy associated with pattern dystrophies (PD). PATIENTS AND METHODS: Retrospective, observational study including patients with reticular PD and macular atrophy. A detailed ophthalmologic exam was performed, and progression of macular atrophy areas was evaluated on fundus autofluorescence frames using RegionFinder software, a semiautomated software embedded in Spectralis device (Heidelberg Engineering, Heidelberg, Germany)...
July 1, 2016: Ophthalmic Surgery, Lasers & Imaging Retina
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