• Digital Retinal Angiography
allows us to view angiograms
in real time. It also allows electronic storage of the images on CD for portability in a
format useful for teaching purposes. The digital angiogram can have a number
of digital filters applied which obtain reasonable results even in patients with lens
opacities. The Institute also records colour slide photographs of the retina, both
for the patient's record and for teaching purposes.
• Digital Fundus & Anterior Segment Photography
allows us
to document the appearance of the anterior and posterior structures of the eye. This
helps monitor recovery from or progression of various diseases over time as well as
assisting in explaining to patients where and how their eye problem is occurring.
• Heidelberg Retinal Angiography
allows us to perform
digital Fluorescein and Indocyanine Green angiography with three-dimensional resolution,
improving the diagnosis of retinal and choroidal pathologies such as diabetic retinopathy
and macular degeneration. Infrared and Autofluorescent imaging on this machine provide
new ways of identifying various manifestations of retinal disease.
• Visual Evoked Potentials and Multifocal Visual Evoked Potential
record the electrical responses from the eye when presented with a visual stimulus such as
a flashing light or chequered screen. They assist in the diagnosis and management of disorders
such as optic neuritis, optic tumours and various retinal disorders.
• The AccuMap
is an objective recording of the visual field
relying on the responses from the eye and brain, thus making it a more reliable way of mapping
visual fields. This is extremely useful in the diagnosis and management of various retinal
disorders such as glaucoma and optic neuritis.
• Full Field Electroretinography
measures the electrical response
from the various cell types in the retina using electrodes placed on the cornea of the eye and
the skin around the eye. It is used to diagnose various retinal disorders such as retinitis
pigmentosa, rod-cone dystrophies and retinoschisis.
• Multifocal Electroretinography
records separate responses from
localised areas of the retina. It is very useful in the diagnosis of retinal diseases, particularly
macular diseases such as macular telangectasia.
• Electro-Oculography
is used to measure the resting potential of
the retina and is used to assess the function of the retinal pigment epithelium. It is used for
the diagnosis of diseases such as retinitis pigmentosa and congenital stationary night blindness.
• Optical Coherence Tomography (OCT)
testing is used for the diagnosis
and management of retinal diseases such as macular degeneration, macular edema, macular holes,
retinal tumours, vitreous tractions and detachments, retinal dystrophies as well as glaucoma.
• IOL Master
measures the axial length of the eye necessary for
calculation of intraocular lenses in cataract surgery.
• B Scans
are used to monitor various retinal disorders such as
retinal tumours and retinal detachments.
• Ultrasound Biomicroscopy (UBM)
is a new techniques used to
obtain images of the anterior segment of the eye at microscopic resolution. It is used in the
assessment and diagnosis of glaucoma, iris cysts and tumours, ocular traumas and intraocular
lens positions.
• Pachymetry
is used to analyses the thickness of the cornea
which is extremely important for monitoring various corneal diseases and glaucoma.
• The Pentacam
images the anterior segment of the eye, providing
three dimensional images of the anterior chamber of the eye, measurement of the corneal thickness
and corneal topographic measurements of the front and back surfaces of the cornea.
• Confocal Microscopy
is a specialised diagnostic test of the
cornea only available at the Save Sight Institute Clinic. It is used to monitor the number,
density and quality of endothelial cells that line the back of the cornea.
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