my guess

Eyelid fluttering, eye deviation, fixed open stare; chewing, sucking, tongue ... Meningitis, encephalitis, intrauterine infections. Intracranial haemorrhage ...
fn.bmjjournals.com/cgi/reprint/78/1/F70.pdf

An oculogyric crisis is the paroxysmal, involuntary upward deviation of the eyes. ... Rarely oculogyric crises are seen in cases of postencephalitic ...
www.gpnotebook.co.uk/cache/-1181089769.htm

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Note added at 32 mins (2006-10-05 16:07:45 GMT)
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Had sudden doubts when I came across one site that called it "rolling of the eyes", but here's another one:

"Oculogyric crisis Spasm of upward gaze typical of post-encephalitic states "

Lépine gives "plafonnement (crise de) = oculogyric spasm (in encephelitis)"

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Note added at 32 mins (2006-10-05 16:08:12 GMT)
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-Alitis.

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Note added at 5 hrs (2006-10-05 20:45:20 GMT) Post-grading
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The question of whether "oculogyric" here means "rolling" rather than "fixed" is an interesting one.

As the Latin suggests, "oculogyric" in isolation does indeed refer to (continous movement) of the eyes. Even in combination as "oculogyric crisis", some writers interpret it this way, but others defined "oculogyric crisis" as a FIXED stare, usually upwards.

oculogyric
pertaining to, characterized by, or causing oculogyration (CIRCULAR MOVEMENTS of the eyeballs, as in an OCULOGYRIC CRISIS).
http://users.ugent.be/~rvdstich/eugloss/DIC/dictio60.html

oculogyric
ADJECTIVE: Of or relating to the TURNING of the eyeballs in the sockets.
http://www.bartleby.com/61/91/O0029150.html

Another form of muscle spasm affects the muscles that control eye movements. Called 'OCULOGYRIC CRISIS', it makes the EYES TURN SUDDENLY, so that you can't control where you look. This is very unpleasant and can make it dangerous crossing the road, or pouring hot water, for instance. It's also very disconcerting for people around you.
http://www.mind.org.uk/Information/Booklets/Making sense/ant...

Initial symptoms include restlessness, agitation, malaise, or a FIXED STARE followed by the more characteristically described MAXIMAL UPWARD DEVIATION OF THE EYES IN THE SUSTAINED FASHION. The eyes MAY also converge, deviate upward and laterally, or deviate downward.
http://www.cmdg.org/Movement_/drug/Oculogyric_Crisis/oculogy...

Initial symptoms include restlessness, agitation, malaise, or a FIXED STARE. Then comes the more characteristically described extreme and sustained upward deviation of the eyes. In addition, the eyes may converge, deviate upward and laterally, or deviate downward (déjà vu?)
http://en.wikipedia.org/wiki/Oculogyric_crisis

An oculogyric crisis is the paroxysmal, involuntary upward deviation of the eyes
http://www.gpnotebook.co.uk/cache/-1181089769.htm

oculogyric crisis - a spasmodic attack; marked by FIXATION of the eyeballs in one position, USUALLY UPWARD.
Also called oculogyric spasm
http://www.themcfox.com/multiple-sclerosis/ms-drugs/glossary...

oculogyric crisis
n.
A spasmodic movement of the eyeballs into a FIXED POSITION, usually upward, that persists for several minutes or hours.
http://www.answers.com/topic/oculogyric-crisis

oculogyric crisis (OGC). This acute dystonia involves sudden but SUSTAINED maximal deviation of the eyes and is associated with neuroleptic drug treatment. ...
www.behavenet.com/capsules/neuro/OGC.htm

• Physical examination findings may include any of the following:
o Oculogyric crisis, deviation of eyes in all directions (which I take to mean TWO different phenomena)
http://www.emedicine.com/emerg/topic157.htm

This site - http://www.neuroophthalmology.ca/textbook/involuntary.html - distinguishes between "ocular bobbing" and "gaze deviations", oculogyric crisis being in the latter category.