Case #8 – “Morning Glory” Disc Coloboma

“Morning Glory” Disc Coloboma – Page 6 of 27

Figure A: The Topcon fundus image is focused on the disc vessels near the cup inferonasally. Note that the large inferior vessel is blurred in the image. Figure B: In contrast, the fundus image is focused on the large inferior vessel which is somewhat elevated and hence in a different image plane. (Stereopsis may

“Morning Glory” Disc Coloboma – Page 6 of 272020-06-15T17:10:58+00:00

“Morning Glory” Disc Coloboma – Page 4 of 27

The sequential 2D horizontal sections (slices #74,75,76 and 77) demonstrate the presence of numerous subtle retinoschisis changes at different levels of the retina.

“Morning Glory” Disc Coloboma – Page 4 of 272020-06-15T17:11:11+00:00

“Morning Glory” Disc Coloboma – Page 3 of 27

Fundus photo of the anomalous disc and of the macula, as well as a 6mm x 6mm scan box. The horizontal section through the macula reveals that the PIL is normal temporally, becomes mildly attenuated under the fovea and eventually disappears towards the optic nerve head. Note the optic disc excavation nasal in this

“Morning Glory” Disc Coloboma – Page 3 of 272020-09-09T14:09:23+00:00

“Morning Glory” Disc Coloboma – Page 2 of 27

History/Chief Complaint49 year old male with history of a unilateral congenital optic nerve abnormality detected five days after birth. The patient is aware of an enlarged blind spot in the left eye which has not changed over the years. Vision is reported to be excellent in each eye although the patient is strongly right eye

“Morning Glory” Disc Coloboma – Page 2 of 272020-09-09T14:07:37+00:00

“Morning Glory” Disc Coloboma – Page 1 of 27

Cavitary Optic Disc Anomalies Case 8 - "Morning Glory" Disc Coloboma Left Eye Topcon 3D OCT 2 dimensional movie which is composed of 84 sections beginning from the top and going down. All sections are contained within the 6 mm x 6 mm green box (see page 4). Note: The movie on

“Morning Glory” Disc Coloboma – Page 1 of 272020-06-15T17:11:34+00:00

“Morning Glory” Disc Coloboma – Page 0 of 27

Optic nerve coloboma, optic pits and morning glory disc syndrome have a somewhat similar optic disc appearance and have been referred to collectively as cavitary optic disc anomalies. All three are associated with serous retinal detachment and retinoschisis.1 This week’s case is about an asymptomatic patient who was diagnosed as an infant with a

“Morning Glory” Disc Coloboma – Page 0 of 272020-06-15T17:11:40+00:00