Pattern electroretinograms (PERGs), with a presumed ganglion cell origin, and oscillatory potentials (OPs), with a presumed inner retinal origin, are reduced in glaucoma. Flash ERGs are reduced at intraocular pressures (IOPs) greater than 60 mm Hg. A study was designed to investigate the time-course of change in PERGs, OPs, and flash ERGs after increasing the IOP of ten rabbit eyes to 35-45 mm ...

Submit Manuscript | http://medcraveonline.com Abbreviations: ETS: Emission Trading Scheme; PMR: Partnership for Market Readiness; ISEGP: Integrated Solar Energy Generation Project; IWEP: Integrated Wind Energy Project; NPAC: National Plan of Action again Climate Change; UNFCCC: United Nations Framework Convention on Climate Change; NCCC: National Committee for Climate Change; REUNET: Renewable ...

OBJECTIVE To assess the utility of visual electrophysiological methods, visual evoked potentials (VEPs) and pattern electroretinograms (PERGs) were recorded for the detection of subclinical optic nerve and retinal involvement in patients with diabetes mellitus. SUBJECTS AND METHODS The data of 63 patients (126 eyes) with no vascular retinopathy or optic neuropathy were retrospectively analyze...

Copyright 2010 Editorial Board. All rights reserved. No responsibility assumed for injury or damage to persons or property arising from the use of information or ideas contained in this publication. LEARNING OBJECTIVES • Special Focus: An overview of currently available testing technologies with focus on optimal test methods and technologies to detect glaucoma damage and progression. • What’s N...

Background. To report a case of acute zonal occult outer retinopathy (AZOOR) with atypical electrophysiology findings. Case Presentation. A 23-year-old-female presented with visual acuity deterioration in her right eye accompanied by photopsia bilaterally. Corrected distance visual acuity at presentation was 20/50 in the right eye and 20/20 in the left eye. Fundus examination was unremarkable. ...

The electroretinogram (ERG) was obtained to contrast modulation (CM). This stimulus is a product of temporal modulation of the contrast of a spatial sinusoid at constant mean luminance. Mean contrast (10-40%), and modulation depth (25-1.0) were modulated at 7.5Hz to record the pattern electroretinogram (PERG). The spatial pattern was a foveally fixated grating pattern with sinusoidal luminance ...

Pureose: In a lot of patients an objectivization of visual field defects is needed. The commonly used VEPs (pattern-reversal, pattern-onset/offset) are not helpful because of their considerable amplitude reduction outside the macula. In contrast the motion-onset VEPs that can be obtained beyond the central 40 " of the vtsual field without significant amplitude reduction (Kuba, M. and Kubova, 2....

Is anything new in functional testing? There have been many attempts to refine psychophysical and electrophysiological techniques over the last 20 years to enable earlier detection and/or possibly provide an objective means for monitoring function. While a few techniques survive in clinical practice, there has generally not been any major breakthroughs in recent times in the functional testing ...

e. Then, are not references in the liiratura about th+ posibilitv that the platelet hvperanivitv in diabetic patients is different according to the tvpe of retinqmtbv. The aim d the pmumt studv is tq evatuat4 the platelet function in insulin-dependent diebetes meliitus (IDDM) with different tvpes of retinopatv. &U&A, The study was carried put on 20 healthy vok~ntews IHV), 20 tDDM patients withw...