Introduction: This work aims to determine the effect on nerve fiber layer (NFL) and ganglion cell complex (GCC) thickness trends in eyes with open-angle glaucoma (OAG) treated with Vision Protection Therapy™ (VPT).
Methods: A retrospective analysis of spectral-domain optical coherence tomography (OCT) measured NFL and GCC thickness trends was performed, excluding eyes with poor-quality scans and principal diagnoses other than OAG. This study compares eyes with OAG managed conventionally with IOP control alone (controls) to eyes managed with the addition of VPT (VPT eyes).
To access the effect of vision protection therapy on neovascular conversion in age-related macular degeneration (AMD). Patient unidentified data aggregated by Vestrum Health, LLC (VH) from over 320 US retina specialists was analyzed to compare the conversion rate from dry to neovascular (wet) AMD in a practice employing VPT (VPT group) compared to those employing standard care alone (SCA group) between January 2017 through July 2023. 500,00 eyes were filtered then matched for neovascular conversion risk factors by propensity scoring and compared in a 10/1 ratio of 7370 SCA and 737 VPT treated eyes.
View Article and Find Full Text PDFPurpose: To access the impact of regular periodic subthreshold diode micropulse laser (SDM) as Vision Protection Therapy on the rate of neovascular conversion of dry age-related macular degeneration (AMD).
Methods: Patient unidentified clinical data aggregated by Vestrum Health, LLC (VH) from 300 retina specialists across the United States was analyzed to examine the effect of a program of regular periodic panmacular low-intensity/high-density subthreshold diode micropulse laser as vision protection therapy (VPT) compared to standard care alone, on the incidence of neovascular conversion in patients with dry age-related macular degeneration (AMD), between January 4, 2016, and September 30, 2020, producing 392,250 eyes for study.
Results: After applying inclusion and exclusion criteria, eyes were matched by propensity scoring for key risk factors.
The purpose of the study was to assess both anatomic and functional outcomes between short-pulse continuous wavelength and infrared micropulse lasers in the treatment of DME. This was a prospective interventional study from tertiary care eye hospital-King Khaled Eye Specialist Hospital (Riyadh, Saudi Arabia). Patients with center-involving diabetic macular edema were treated with subthreshold laser therapy.
View Article and Find Full Text PDFPurpose: To determine the effect of panmacular low-intensity/high-density subthreshold diode micropulse laser (SDM) on age-related geographic atrophy (ARGA) progression.
Methods: The retinal images of all eyes with ARGA in a previously reported database, consisting of all eyes with dry age-related macular degeneration (AMD) active in a vitreoretinal practice electronic medical record (EMR), were identified and analyzed to determine the velocity of radial linear ARGA progression during observation and after panmacular SDM.
Results: Sixty-seven eyes of 49 patients with ARGA, mean age of 86 years were identified as having follow-up both before and after initiation of SDM treatment.
Purpose: To compare the safety and efficacy of 810 versus 577 nm laser wavelengths for micropulse subthreshold (sublethal) laser treatment by mathematical analysis.
Methods: Two different representative laser parameter sets for micropulsed subthreshold diode laser treatment, one employing 810 nm and the other 577 nm, are compared with regard to efficacy by analysis of the kinetics of laser-induced heat-shock protein (HSP) activation; and for safety, by scaling law analysis.
Results: Kinetics analysis of laser-induced HSP activation shows that the primary therapeutic effect of laser is thermal incitement of a long-term wavelength-independent increase in the rate of HSP-mediated protein repair specific to sick and dysfunctional cells, rather than from short-term increases in free intracellular HSP concentrations.
Purpose: To examine the effect of low-intensity/high-density subthreshold diode micropulse laser (SDM) on visual acuity (VA) and macular thickness in eyes with limited visual recovery and persistent macular thickening after epiretinal membrane peeling.
Methods: A retrospective review of medical records identified all patients undergoing SDM after membrane peeling in a clinical vitreoretinal subspecialty practice. Exclusion criteria included other obfuscating ocular disease or loss to follow-up after SDM treatment.
Purpose: To determine the incidence of new choroidal neovascularization (CNV) in eyes with dry age-related macular degeneration (AMD) following subthreshold diode micropulse laser (SDM).
Method: In an observational retrospective cohort study, the records of all patients active in the electronic medical records database were reviewed to identify eyes with dry AMD treated with SDM. Identified eyes were classified by simplified AREDS categories, and analyzed for the primary endpoint of new CNV after treatment.
Objectives: To examine the effect of subthreshold diode micropulse laser (SDM) on pattern electroretinography (PERG) and visual function in retinitis pigmentosa (RP).
Methods: The records of all patients (pts) undergoing SDM in a vitreoretinal subspecialty practice were reviewed. Inclusion criteria included the presence of RP evaluated before and after SDM by PERG.
Aim: To compare the outcomes of subthreshold microsecond (STM) and continuous-wave laser (CWL) panretinal photocoagulation (PRP).
Methods: In this randomized, prospective, pilot study, 20 eyes of 10 subjects with symmetric severe non-proliferative (NPDR) or low-risk proliferative diabetic retinopathy (PDR) were included. Each eye of the subject was randomized into either CWL or STM PRP group.
Because of complications and side effects, conventional laser therapy has taken a back seat to drugs in the treatment of macular diseases. Despite this, research on new laser modalities remains active. In particular, various approaches are being pursued to preserve and improve retinal structure and function.
View Article and Find Full Text PDFPurpose: To review the results of low-intensity/high-density subthreshold micropulse laser (SDM) for treatment of central serous chorioretinopathy.
Method: The records of all patients treated in a retinal subspecialty practice with SDM for central serous chorioretinopathy were reviewed.
Results: Eleven consecutive eyes of 11 patients treated between October 2011 and April 2014 were identified for study, 9 men and 2 women, aged 30 to 55 (mean = 46).
Purpose: To review the results of retinal function testing in eyes undergoing panmacular subthreshold diode micropulse laser (SDM) prophylaxis for chronic progressive retinal disease.
Methods: The records of all patients undergoing prophylactic panmacular SDM for high-risk age-related macular degeneration (AMD) and inherited photoreceptor degenerations (IRDs) examined by pattern electroretinography (PERG), automated microperimetry (AMP), and Central Vision Analyzer (CVA) testing before and after treatment were reviewed.
Results: A total of 158 consecutive eyes of 108 patients with AMD and 10 consecutive eyes of 8 patients with IRDs, evaluated both before and after SDM by PERG, were eligible for study.
Ophthalmic Surg Lasers Imaging Retina
October 2015
Two consecutive cases of symptomatic vitreomacular adhesion with macular hole were treated with intravitreal ocriplasmin. Both were complicated by long-term visual symptoms and chronic serous foveal detachments lasting 17 months post-treatment. These findings suggest direct and long-lasting effects of ocriplasmin on the retinal pigment epithelium and/or outer retina.
View Article and Find Full Text PDFMedicinal lasers are a standard source of light to produce retinal tissue photocoagulation to treat retinovascular disease. The Diabetic Retinopathy Study and the Early Treatment Diabetic Retinopathy Study were large randomized clinical trials that have shown beneficial effect of retinal laser photocoagulation in diabetic retinopathy and have dictated the standard of care for decades. However, current treatment protocols undergo modifications.
View Article and Find Full Text PDFPurpose: Drug tolerance is the most common cause of treatment failure in neovascular age-related macular degeneration. "Low-intensity/high-density" subthreshold diode micropulse laser (SDM) has been reported effective for a number of retinal disorders without adverse effects. It has been proposed that SDM normalizes retinal pigment epithelial function.
View Article and Find Full Text PDFPurpose: To determine the safety of transfoveal subthreshold diode micropulse laser for fovea-involving diabetic macular edema.
Methods: The records of all patients treated with transfoveal subthreshold diode micropulse laser for fovea-involving diabetic macular edema in two retina clinics were reviewed. The eligibility included fovea-involving diabetic macular edema by spectral domain optical coherence tomography and pretreatment visual acuity of 20/40 or better.
Ophthalmic Surg Lasers Imaging Retina
February 2014
Background And Objective: To review results of vitreous surgery for branch and central retinal vein occlusion (BRVO and CRVO).
Patients And Methods: All cases of vitrectomy with multiple transvenous chorioretinotomies for retinal vein occlusion at a vitreoretinal subspecialty practice were reviewed.
Results: Twenty eyes of 20 patients (four with BRVO and 16 with CRVO) were included.
Purpose: To present the state-of-the-art of subthreshold diode laser micropulse photocoagulation (SDM) as invisible retinal phototherapy for diabetic macular edema (DME).
Method: To review the role and evolution of retinal laser treatment for DME.
Results: Thermal laser retinal photocoagulation has been the cornerstone of treatment for diabetic macular edema for over four decades.
Purpose: To determine the long-term safety of high-density subvisible diode micropulse photocoagulation (810 nm), compare the clinical findings with computational modeling of tissue hyperthermia and to report results for a subset of eyes treated for diabetic macular edema (ME) documented pre- and postoperatively by spectral-domain optical coherence tomography.
Method: All eyes treated for ME from diabetic retinopathy (diabetic ME) and branch retinal vein occlusion between April 2000 and January 2010 were reviewed for subvisible diode micropulse laser-induced retinal damage. Therapeutic outcomes were reviewed for a subgroup treated for diabetic ME with pre- and postoperative spectral-domain optical coherence tomography.
Ophthalmic Surg Lasers Imaging
September 2010
A 67-year-old woman had decreased visual acuity in her left eye and disturbing concentric ring dysphotopsias after bilateral implantation of ReSTOR (SN60D3; Alcon Laboratories, Inc., Fort Worth, TX) diffractive multifocal intraocular lenses (IOLs). Monochromatic (820-nm infrared and 488-nm red-free) scanning laser ophthalmoscopy (SLO) documented central retinal concentric ring patterns resembling the patient's drawings of her dysphotopsia, prompting investigation of the relationship of these phenomena.
View Article and Find Full Text PDFOphthalmic Surg Lasers Imaging
January 2009
Background And Objective: To report the visual acuity results in a small case series of eyes undergoing membrane peeling for epiretinal membrane presenting with age-related subfoveal choroidal neovascularization.
Patients And Methods: Retrospective chart review of all eyes undergoing vitrectomy with epiretinal membrane peeling after intravitreal anti-vascular endothelial growth factor injection treatment for age-related subfoveal choroidal neovascularization presenting between February 2005 and January 2007 to a private vitreoretinal subspecialty practice.
Results: Four eyes of four patients observed for 10-23 months (median = 20.
Purpose: To determine the incidence and effect of persistent/prolonged choroidal hypofluorescence (PCH) following combined verteporfin photodynamic therapy and intravitreal triamcinolone acetate injection (PDT + IVTA) for age-related subfoveal choroidal neovascularization (CNVM).
Method: A retrospective review of all patients undergoing PDT + IVTA for CNVM from December 2003 through November 2004 was performed. Included patients underwent intravenous fundus fluorescein angiography (FA) preoperatively and 1 week and 3 months following PDT.