Pregnancy-induced hypertension or pre-eclampsia presents with pathological changes in the retina, blurred vision, retinal detachment, and patient complain of central scotoma
, diplopia and photopsia on the affected eye (19-20).
Patients with central serous chorioretinopathy present with diminution of vision, metamorphopsia, relative central scotoma
, micropsia, dyschromatopsia and blurring of vision.
Static perimetry (Humphrey Visual Field Analyzer, HFA, SAD; Threshold test C 30-2) revealed defects in the visual field of the right eye, blind spot enlargement, absolute central scotoma
, absolute and relative paracentral scotoma (MD -9.
Patients with AMD and a large absolute central scotoma
can be trained successfully to use eccentric viewing, as demonstrated in a scanning laser ophthalmoscope.
Central visual field characteristics, including fovea and central scotoma
characteristics, were measured with a scanning laser ophthalmoscope (SLO) (model 101, Rodenstock; Munich, Germany).
Decrease in visual acuity was the most common presenting symptom followed by central scotoma
When a central scotoma
impairs the ability of the fovea to distinguish detail, one or more preferred retinal loci (PRL) (Schuchard & Raasch, 1992; von Noorden & Mackensen, 1962; White & Bedell, 1990), also known as pseudo-foveas (Guez, Le Gargasson, Rigaudiere, & O'Regan, 1993), naturally develop at eccentric retinal locations and become the new points of fixation.
However, her vision deteriorated to count fingers vision (near) in the right eye, in which there was a dense central scotoma
SAN FRANCISCO -- Visual disturbances-including blurred vision, floaters, central scotoma
, and even complete loss of vision--can be a symptom of hypoglycemia in some patients with diabetes, according to Dr.
He had no neurological signs on examination, but ophthalmological assessment found a large upper central scotoma
on the right side.
All patients recovered visual acuity to 20/30 or better with residual central scotoma
by 12 weeks.
The left eye also exhibited a large central scotoma
, dyschromatopsia, and a left afferent pupillary defect.