There are numerous field abnormalities observed in ocular fundus diseases.
To compare second generation frequency-doubling perimetry (FDP) with standard automated perimetry (SAP) to detect glaucomatous visual field abnormalities.
Our study showed severe visual field abnormalities in VKH patients before treatment as evidenced by severely decreased MD value and P value.
The INGV also provided us with information on past seaquakes and geomagnetic field abnormalities (www.earthquake.rm.ingv.it), while information on solar activity and cycles was obtained from the US National Oceanic and Atmospheric Administration NOAAA, www.swpc.noaa.gov).swpc.noaa.gov
Patients may present with progressive motor or sensory disturbances, language dysfunction, visual field abnormalities, or focal seizures.
However, more recent studies suggest that certain field abnormalities of the colon extend much further, perhaps encompassing the entire mucosal field (Polley et al, 2006).
The cone and cone-rod dystrophies are typically characterised by progressive worsening of visual acuity, dyschromatopsia, and photophobia with eventual central scotomata and peripheral field abnormalities.
Several studies have shown that COPD is a major risk factor reducing tissue oxygen delivery and this effect may be responsible for the visual field abnormalities [ 13].
Other risk factors for glaucoma are increasing age [ 5], being African American [ 6], visual field abnormalities in visual field examinations [ 7], high myopia, family history of glaucoma [ 8], thin cornea and a cup-to-disk ratio greater than 0.4 [ 7].
The highest level of evidence requires optic disc and visual field abnormalities (VCDR or asymmetry in the 97.5th percentile or more for the normal population with a definite glaucomatous visual field defect).
