2. Introduction
• Ophthalmologist are called to evaluate optic discs
frequently .
• R/O Papilledema , infiltrative processes,
compression or atrophy.
• Anomalous disc is not a diseases disc .
4. Cardinal Symptoms of High
ICP
• Headache : holocranial , tension-like band , worse
upon awakening and in supine position and is
reduced when they are active.
• Migraine : aura, unilateral , throbbing , light
sensitivity , phonophobia, nausea and vomiting ,
family history of migraine and car sickness.
5. Cardinal Symptoms of High
ICP
• Tinnitus : “swishing” sound , synchronous with pulse
and worse when supine. (transmission of high ICP
causes turbulent flow in venous sinuses).
• Tinnitus is very rare in other types of headaches .
6. Cardinal Symptoms of High
ICP
• Transient visual obscuration : Brief , bilateral
(seconds) dimming in vision related to change in
posture.
• If unilateral , optic disc drusen (not related to
position).
• Differentiate from Uhthoff's phenomenon.
7. Cardinal Symptoms of High
ICP
• Diplopia : Binocular horizontal (sixth nerve paresis).
8. Examination
• Optic nerve cup : usually small or absent in anomalous
optic disc. In papilledema it is present until late stage.
• Vessel branching : trifurcations , loops , increased
branching
• Blood vessels dilated , congested
• opacification of the RNFL —> blurring of vessels—
>hemorrhages and exudates
• Spontaneous venous pulsations : can be absent in normal.
10. Early Papilledema
“as the disc swells lateralwards, it displaces the retina.- throwing it into a series of folds
which run concentric with the edge of the disc. This lateral bulging is due to the distension
of the most peripheral nerve fibers”
Paton and Holmes 1911
13. Features of Anomalous discs
Psudopapilledema True Papilledema
Disc margin vessels clear Disc vesses obscured
Elevation confined to disc Elevation of the
peripapillary RNFL
Small cupless disc Loss of cup late
Anamolous disc vessels
(tri-, quadrifurcation)
Normal vessels
No hemorrhage or
exudates
NFL hemorrhage, cotton
wool spots, exudate
14. Ancillary Testing
• Ultrasound : Hyper-reflective bodies
• OCT : Can be useful in differentiating true vs false
papilledema , buried drusen sometimes do not to exhibit a
significant difference in reflectivity from surrounding disc
tissue.
• Fluorecin Angiogroaphy : Red-free (drusen) , staining and
leakage with fluorescin (inflammation).
• Neuro-imaging : MRI, CT
• LP
28. Case
Failed a driving test.
Started on Xalatan, two months later IOP was 19 OU.
Has been driving for the last 10 years “with no
accidants”.Strabismic amblyopia OD , Strabismus
surgery.
High Myopia ( -7 D OU ).
Mother : Diabetes.
30. Segmental Optic Nerve
Hypoplasia
• Maternal diabetes in 1s trimester.
• No other systemic abnormalities.
• Can be found in families with no history of maternal
diabetes.
• Interference in gestational development of superior
retinal ganglion cells or their axons.
• Occasionally associated congenital lesions of the retina
, chiasm, and posterior visual pathway.