Glossary Of Retinal
Anatomy & Macular Pathology Terms
Cellophane
m
aculopathy An abnormal wrinkled appearance of the macular surface,
similar to crushed cellophane wrap, distinct from EMP which is more
substantial.
Drusen Tiny
white deposits in the retina beneath the retinal pigment epithelial
layer. Associated with aging changes of the retina as in macular
degeneration.
EpiMacular
Proliferation (EMP) A proliferation of fibrocellular membranes
which overly the macula and contract, resulting in distorted vision.
EpiMacular
Proliferation- Internal Limiting Membrane complex The combination
of epimacular proliferation (EMP) with the internal limiting membrane,
(ILM) lifted together by FILMS as one entity.
Fluidic Internal
Limiting Membrane Separation (FILMS) Surgical technique for
floating EMP and ILM off the neurosensory retinal layer by liquid
pressure rather than by pulling apart with forceps.
Forceps removal
of EMP Traditional surgery for dissecting membranes, and
sometimes ILM, from neurosensory retina with a tweezer-like technique.
Fovea The
center of the macula. The point of best vision.
Internal
Limiting Membrane (ILM) Anatomical innermost layer of the retina.
Intravitreal
Injection Injection of medication, air, or gas into the vitreous
cavity. May be done in the office setting or in combination
with other surgical procedures in the operating room.
Macula
The area of the retina responsible for detail vision, like reading
and recognizing faces, and color vision.
Maculopathy
Any abnormal condition of the macula.
Macular Degeneration Any deterioration of the macula tissue. Most commonly used to describe
Age Related Macular Degeneration, (AMD),a condition characterized
by pigment and blood vessel deterioration beneath the neurosensory
macula.
Dry
AMD
Characterized by the presence of drusen and
changes to the retinal pigment. Progressive changes may
cause difficulty in reading and in later stages may result
in a loss of central vision. Usually affects both eyes and
vision loss is gradual
|
Wet
AMD
Characterized by the growth of abnormal blood
vessels immediately beneath the retina. These vessels known
as choroidal neovascularization (CNV) leak and bleed resulting
in damage to the macula with loss of central vision. Vision
loss may be sudden. |
Macular Edema
Swelling of the retina in the area of the macula--may be associated
with various retinal conditions for example as in diabetic retinopathy.
Macular Hole
A full thickness defect of the neurosensory retina at the fovea,
ultimately causing legal blindness.
Macular Pucker
Wrinkling of the internal limiting membrane and the neural retina
layer caused by EMP resulting in distorted vision.
Neurosensory
(neural) retina That portion of the retinal tissue electrical
that is directly responsible for creating impulses interpreted by
the brain as vision.
Pneumatic
maculopexy Intraocular
injection of long-acting gas bubble to tamponade macula.
Retina
Anatomical layered, light-sensitive nerve tissue lining the interior
of the eye allowing the transmission of electrical impulses to the
brain interpreted as vision.
Retinal detachment
Separation of the neurosensory retina from the underlying retinal
pigment epithelium.
Traction
Contraction of opposing membranes acting to distort or detach underlying
retinal tissue from its normal anatomical position and function.
Traction
maculopathy Any abnormal condition of the macula caused by traction
forces.
Vitreous
Transparent, inert, jelly-like substance that fills the interior
of the eye.
Vitrectomy
Microsurgical technique for removing the vitreous from the eye,
done alone for some vitreal disorders and in combination with other
procedures for some retinal conditions.
Vitreomacular
Traction Syndrome (VMTS) Traction maculopathy caused by contracting
forces of abnormal vitreous adherence forces of abnormal vitreous
adherence to the macula, from posterior (back) to anterior (front),
seen in some conditions of macula edema, differentiated from tangential
(side to side) traction as seen in cellophane maculopathy, macular
pucker, or macular hole conditions.
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Margaret Harrill -
Web Master
-
rev.
May 2007
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