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argon photocoagulation

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https://www.readbyqxmd.com/read/27882027/visual-outcome-of-laser-treatment-in-diabetic-macular-edema-study-from-an-urban-diabetes-care-center
#1
Rashid Alvi, Muhammad Saleh Memon, Samad Shera, Seema N Mumtaz, Sikander Ali Shaikh, Muhammad Faisal Fahim
OBJECTIVE: To determine the visual outcome of laser treatment in clinically significant macular edema. METHODS: This interventional and qausi experimental study was carried out at Diabetic Association of Pakistan (DAP) during January 2011 and December 2012. Approval was taken from Research Ethical Committee of Isra Postgraduate Institute of Ophthalmology. Records of 925 eyes of 464 patients with "Clinical Significant macular edema" (CSME), treated with laser photocoagulation were analyzed...
September 2016: Pakistan Journal of Medical Sciences Quarterly
https://www.readbyqxmd.com/read/27843902/multimodal-imaging-of-choroidal-neovascularization-associated-with-sclerochoroidal-calcification
#2
Angela P Bessette, Arun D Singh
We report a case of a choroidal neovascular membrane (CNVM) associated with sclerochoroidal calcification (SCC). An asymptomatic, 72-year-old male was referred to our institution for yellow-white placoid retinal lesions of both eyes. B-scan ultrasonography confirmed the diagnosis of SCC, and indocyanine green angiography confirmed the presence of an associated CNVM. Due to enlargement of a hemorrhagic pigment epithelial detachment associated with the CNVM over the course of 7 months, the patient was treated with a series of bevacizumab injections followed by photodynamic therapy (PDT)...
October 2016: Ocular Oncology and Pathology
https://www.readbyqxmd.com/read/27843227/combined-argon-laser-photocoagulation-and-antivascular-endothelial-growth-factor-for-management-of-macular-polypoidal-choroidal-vasculopathy
#3
Parveen Sen, S Vinay Kumar, Muna Bhende, Tarun Sharma
AIM: To evaluate the efficacy of combination therapy of argon laser photocoagulation and intravitreal antivascular endothelial growth factor (VEGF) injection in idiopathic polypoidal choroidal vasculopathy (PCV) involving macula. MATERIALS AND METHODS: A retrospective interventional study involving 12 eyes of 11 patients diagnosed with PCV involving the macula on indocyanine green angiography (ICGA). Intravitreal anti-VEGF was given in eyes with significant subretinal/sub retinal pigment epithelium hemorrhage or exudation...
September 2016: Oman Journal of Ophthalmology
https://www.readbyqxmd.com/read/27810422/ophthalmomyiasis-interna-masquerading-as-orbital-cellulitis
#4
Simon S M Fung, Stephanie J West, Anthony T Moore
Ophthalmomyiasis interna posterior is a rare condition caused by the invasion of the ocular posterior segment by the larval form of certain flies in the order Diptera. The main clinical features are reduced visual acuity, intense posterior uveitis, and neuroretinitis. Treatment of this condition is predominantly surgical, including argon laser photocoagulation for subretinal larva and pars plana vitrectomy for intravitreal infection. We report a case of ophthalmomyiasis interna posterior in a 12-year-old girl that masqueraded as orbital cellulitis and was successfully treated with Nd:YAG laser photodisruption...
October 31, 2016: Journal of AAPOS: the Official Publication of the American Association for Pediatric Ophthalmology and Strabismus
https://www.readbyqxmd.com/read/27715375/changes-in-the-macular-ganglion-cell-complex-thickness-and-central-macular-thickness-after-argon-laser-panretinal-photocoagulation
#5
Gülizar Demirok, Mehmet Fatih Kocamaz, Yasemin Topalak, Yeşim Altay, Burcu Tabakci, Ahmet Şengün
PURPOSE: To evaluate the changes in the macular ganglion cell complex (GCC) thickness and central macular thickness (CMT) as measured by spectral domain optical coherence tomography (OCT) post-argon laser panretinal photocoagulation (PRP). METHODS: The medical records of 25 patients with proliferative diabetic retinopathy (PDR) who underwent PRP, 29 patients with non-proliferative diabetic retinopathy (NPDR), and 29 patients with diabetes but without diabetic retinopathy (DR) were analyzed...
August 10, 2016: Seminars in Ophthalmology
https://www.readbyqxmd.com/read/27607149/descemet-membrane-endothelial-keratoplasty-for-epithelial-downgrowth-after-clear-corneal-cataract-surgery
#6
Young Shin Kim, So-Young Jin, Jin Kwon Chung
OBJECTIVES: To describe the first case of Descemet membrane endothelial keratoplasty (DMEK) combined with argon laser photocoagulation and intracameral 5-fluorouracil (5-FU) injection in a patient with epithelial downgrowth after cataract surgery. METHODS: Case report and review of the literature. RESULTS: A 77-year-old female underwent uneventful cataract surgery using a clear corneal incision in her left eye. Six months after surgery, an epithelial cell sheet began to cover the posterior cornea and then spread to the anterior chamber structures, leading to anterior synechia and corectopia at 2 years...
September 7, 2016: Eye & Contact Lens
https://www.readbyqxmd.com/read/27260483/murine-fundus-fluorescein-angiography-an-alternative-approach-using-a-handheld-camera
#7
Moshe Ehrenberg, Scott Ehrenberg, Ouri Schwob, Ofra Benny
In today's modern pharmacologic approach to treating sight-threatening retinal vascular disorders, there is an increasing demand for a compact, mobile, lightweight and cost-effective fluorescein fundus camera to document the effects of antiangiogenic drugs on laser-induced choroidal neovascularization (CNV) in mice and other experimental animals. We have adapted the use of the Kowa Genesis Df Camera to perform Fundus Fluorescein Angiography (FFA) in mice. The 1 kg, 28 cm high camera has built-in barrier and exciter filters to allow digital FFA recording to a Compact Flash memory card...
July 2016: Experimental Eye Research
https://www.readbyqxmd.com/read/27221656/angiographic-features-and-disease-outcomes-of-symptomatic-retinal-arterial-macroaneurysms
#8
Emily L Hughes, Ian J Dooley, Kevin P Kennelly, Fergus Doyle, W F Siah, P Connell
PURPOSE: Symptomatic retinal arterial macroaneurysms (RAM) are primarily investigated by fundus fluorescein angiography after presenting with visual disturbance. The natural history includes spontaneous regression and occasionally occlusion of the arteriole distal to the aneurysm. RAM may be managed conservatively. Interventional treatment options include focal argon laser photocoagulation, Nd:YAG laser hyaloidotomy, and pars plana vitrectomy. The purpose of this study was to elicit the rates of distal vessel occlusion and aneurysm thrombosis in RAM at presentation, and their relevance to the treatment of RAM...
May 25, 2016: Graefe's Archive for Clinical and Experimental Ophthalmology
https://www.readbyqxmd.com/read/27129030/theoretical-and-practical-aspects-relating-to-the-photothermal-therapy-of-tumors-of-the-retina-and-choroid-a-review
#9
P Niederer, F Fankhauser
Photothermal treatment of tumors of the retina and choroid such as retinoblastomas, malignant melanomas, benign tumors as well as of vascular malformations can be performed by using laser radiation. A number of basic physical laws have to be taken into account in this procedure. Of particular importance thereby are: Arrhenius' law to approximate the kinetics of protein denaturation and photocoagulation, furthermore the electromagnetic radiation field, the distribution of both radiant and thermal energy induced in tumors and vascular structures, the influence of the wavelength and laser pulse duration (exposure time), as well as of the optical properties of the tissue...
September 14, 2016: Technology and Health Care: Official Journal of the European Society for Engineering and Medicine
https://www.readbyqxmd.com/read/27077785/amniotic-membrane-graft-with-argon-laser-photocoagulation-versus-amniotic-membrane-graft-with-tissue-debridement-for-treatment-of-mycotic-keratitis
#10
Mohammad M Khater
AIM: To compare augmented therapy with argon laser and amniotic membrane graft (AMG) versus AMG and tissue debridement for resistant mycotic corneal ulcers. METHODS: This study included 40 cases of resistant fungal corneal ulcers in two groups. In one group, argon laser photocoagulation and AMG were done while AMG with tissue debridement was done as adjunctive therapy for the specific antifungal agents. RESULTS: Complete healing with no adverse effects was achieved in argon laser group in duration ranging from 2-3 weeks in all cases...
April 14, 2016: Seminars in Ophthalmology
https://www.readbyqxmd.com/read/27014383/coats-disease-very-long-term-outcome-after-early-stage-conventional-treatment
#11
Salvatore Perrone, Alberto Rossetti, Patrick Sportiello, Pierfrancesco Mirabelli, Pierangela Cimatti, Daniele Doro
PURPOSE: To report on the outcome of conventional therapy in patients with Coats' disease. METHODS: Retrospective analysis of the charts of thirteen patients with Coats' disease. RESULTS: Mean age of 9 male (70%) and 4 female (30%) patients was 17.7 (range, 5-33) years; one female had bilateral disease. Eleven eyes with retinal telangiectasia and exudation were treated with argon laser photocoagulation alone or photocoagulation associated with cryotherapy; the mean follow up was 32...
2016: Open Ophthalmology Journal
https://www.readbyqxmd.com/read/26959690/the-effect-of-laser-panretinal-photocoagulation-on-diabetic-macular-edema-using-the-pascal%C3%A2-photocoagulator-versus-the-conventional-argon-laser-photocoagulator
#12
Mohamed M Mahgoub, Tamer A Macky
PURPOSE: The aim of this study was to compare the effect of panretinal photocoagulation for proliferative diabetic retinopathy (PDR) on diabetic macular edema (DME) using a Pascal® Photocoagulator (PP) or a conventional argon laser photocoagulator (CALP). METHODS: Eighty eyes with PDR and center-involving DME were randomized to PP or CALP. Both groups had baseline assessment of best-corrected visual acuity (BCVA) and were examined with optical coherence tomography and fluorescein angiography...
2016: Ophthalmologica. Journal International D'ophtalmologie
https://www.readbyqxmd.com/read/26949639/argon-laser-photocoagulation-versus-intrastromal-voriconazole-injection-in-treatment-of-mycotic-keratitis
#13
Mohammad M Khater, Mohammad S El-Shorbagy, Adel A Selima
AIM: To compare argon laser photocoagulation and intrastromal injection of voriconazole as adjunctive treatment modalities in cases of resistant mycotic corneal ulcers. METHODS: Two groups each of them included 20 cases of resistant mycotic corneal ulcers. Both groups treated with local and systemic specific antimicrobial drugs guided with culture and sensitivity results. In one group argon laser photocoagulation was used as an adjunctive therapy to the specific antifungal drugs and in the other group, intrastromal injection of voriconazole was done besides the specific antifungal drugs...
2016: International Journal of Ophthalmology
https://www.readbyqxmd.com/read/26944556/management-of-intraocular-pressure-elevation-during-hemodialysis-of-neovascular-glaucoma-a-case-report
#14
P Frezzotti, C Menicacci, S A Bagaglia, P Mittica, F Toto, I Motolese
BACKGROUND: It is generally accepted that dialysis may lower plasma osmolality at a faster rate than changes in ocular osmolality. This osmotic difference causes water to migrate from the plasma into the aqueous humor, increasing intraocular pressure. Certain authors have described IOP increase in patients with narrow angles. CASE PRESENTATION: Here we report a neovascular glaucoma patient who experienced a substantial increase in IOP associated with severe eye pain and blurred vision during sessions of dialysis...
2016: BMC Ophthalmology
https://www.readbyqxmd.com/read/26914686/efficacy-of-pattern-scan-laser-photocoagulation-for-superficial-conjunctival-nevi-ablation
#15
Young Min Park, Ji-Eun Lee, Jong Soo Lee
This study reports the efficacy and safety of Pattern Scan Laser (PASCAL) photocoagulation in the removal of superficial conjunctival nevi. Superficial conjunctival nevi were removed from 10 eyes of 10 patients using PASCAL. The laser spots were 200 μm in size, and the power delivered ranged from 250 to 300 mW. The duration of the laser pulse was kept at the minimum needed for adequate lesion removal. The duration of the laser pulse administered to the patients varied from 100 to 200 ms. Complete removal of the conjunctival nevus was observed in all the patients after PASCAL photocoagulation...
July 2016: Lasers in Medical Science
https://www.readbyqxmd.com/read/26861462/effect-of-aspirin-on-models-of-rpe-pathology
#16
Sunali Goyal, Valeriy V Lyzogubov, Omair Ali, Nalini S Bora, Sami H Uwaydat
BACKGROUND: To characterize the effect of ASA in mouse models of choroidal neovascularization (CNV) and retinal degeneration. METHODS: In- Vivo: Male C57BL/6 mice were given ASA in food or regular rodent diet. CNV was induced by argon laser photocoagulation. Subretinal injections of PEG-400 were administered to induce retinal degeneration. CNV size, laser spot area and mean intensity of VEGF in the laser injured zones was measured. In the PEG injected eyes the thickness of RPE and choroid was measured...
February 10, 2016: Clinical & Experimental Ophthalmology
https://www.readbyqxmd.com/read/26562565/retinal-morphometry-changes-measured-with-spectral-domain-optical-coherence-tomography-after-pan-retinal-photocoagulation-in-patients-with-proliferative-diabetic-retinopathy
#17
Christoph Mitsch, Berthold Pemp, Katharina Kriechbaum, Matthias Bolz, Christoph Scholda, Ursula Schmidt-Erfurth
PURPOSE: To identify the effects of pan-retinal laser treatment on the integrity of neurosensory retinal layers. METHODS: Patients were examined with fluorescence angiography after a standardized examination for diabetic retinopathy and a peripapillary ring scan with spectral domain optical coherence tomography. A single-session pan-retinal photocoagulation was performed using the PASCAL pattern scanning argon laser applying a minimum of 1,500 spots. Optical coherence tomography was evaluated more than 6 months...
June 2016: Retina
https://www.readbyqxmd.com/read/26466226/phacoemulsificat%C3%A4-on-in-eyes-w%C3%A4-th-cataract-and-high-myopia
#18
Servet Cetinkaya, Nursen Oncel Acir, Yasemin Fatma Cetinkaya, Zeynep Dadaci, Halil İbrahim Yener, Faik Saglam
PURPOSE: To evaluate the outcomes and complications following phacoemulsification surgery in eyes with cataract and high myopia. METHODS: We retrospectively evaluated the data of 43 eyes of 28 consecutive patients (12 males, 16 females) with cataract and high myopia who had undergone phacoemulsification and intraocular lens (IOL) implantation. The mean [± standard deviation (range)] age of the patients was 59.20 ± 11.08 (39-77) years. RESULTS: The frequency of nuclear cataract was significantly higher than that of other cataract types (P=0...
September 2015: Arquivos Brasileiros de Oftalmologia
https://www.readbyqxmd.com/read/26451693/laser-therapy-for-retinopathy-in-sickle-cell-disease
#19
REVIEW
Kay Thi Myint, Soumendra Sahoo, Aung Win Thein, Soe Moe, Han Ni
BACKGROUND: Sickle cell disease includes a group of inherited haemoglobinopathies affecting multiple organs including the eyes. Some people with the disease develop ocular manifestations due to vaso-occlusion. Vision-threatening complications of sickle cell disease are mainly due to proliferative sickle retinopathy which is characterized by proliferation of new blood vessels. Laser photocoagulation is widely applicable in proliferative retinopathies such as proliferative sickle retinopathy and proliferative diabetic retinopathy...
2015: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/26403280/long-term-outcomes-of-argon-laser-photocoagulation-in-small-size-cyclodialysis-cleft
#20
COMPARATIVE STUDY
Jong Chul Han, Young Kyo Kwun, Seok Ho Cho, Changwon Kee
BACKGROUND: To evaluate the long-term outcomes of Argon laser photocoagulation compared to surgical direct cyclopexy in small-size cyclodialysis cleft patients. METHODS: This is a retrospective study. Small-size cyclodialysis cleft patients who underwent Argon laser photocoagulation and surgical direct cyclopexy were reviewed. The mean follow-up period were 82.4 (range, 61 - 145) months and 99.9 (range, 62 - 184) months in both groups. The comparison of best corrected visual acuity (BCVA), intraocular pressure (IOP), postoperative peak IOP and time to normalization of IOP before and after the treatment...
September 24, 2015: BMC Ophthalmology
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