Table of Contents - PAO Annual Meeting 2012

a more stable wound seal against wound leakage.
Key Words: Wong incision, Superior stromal pocket, Sutureless
clear corneal incision, Endophthalmitis
PP-12
Evaluation of the Effectiveness of the Angled Sinskey Hook
for Vertical Quick-Chop Nucleotomy in Phacoemulsification
Lenard Paul Concepcion, Antonio Say, Alex Sua
University of Santo Tomas Hospital, Philippines
Objective: To evaluate the effectiveness of the unmodified angled
Sinskey hook when used as a phaco chopper in performing the
vertical quick-chop nucleotomy technique in phacoemulsification.
Methods: This is a prospective randomized study involving 18
eyes of 18 consecutive patients randomly assigned to undergo
vertical quick-chop nucleotomy in phacoemulsification using
the angled Sinskey hook, or the Chang vertical chopper for
vertical chop nucleotomy. Vertical quick-chop nucleotomy in
phacoemulsification was performed by 1 surgeon (L.P.A.C, a
SENIOR RESIDENT IN TRAINING) using the INFINITIR phaco
machine. The parameters, the vertical chop success, number
of vertical chop attempts, and Effective Phaco Time (E.P.T.)
/ Cumulative Dissipated Energy (C.D.E.), measured were in
relation to nuclear density. The chi-square test, independentsamples
t test, and analysis of covariance were used to compare
the groups for statistical significance.
Results: The chi-square showed that the difference between
overall chop successes of the 2 groups was not statistically
significant (P value: 0.527). The independent-samples t test
showed that there is no significant difference between the 2
groups in terms of the number of vertical quick-chop attempts
(P value: 0.653) and EPT/CDE (P value: 0.859). Analysis of
covariance comparing the relationship of nuclear density to chop
successes of the 2 groups showed that the difference between the
numbers of chop attempts (P value: 0.547) was not statistically
significant. Analysis of covariance comparing the relationship of
nuclear density to the EPT/CDE of the 2 groups showed that the
difference between the EPT/CDE (P value: 0.666) of the 2 groups
was not statistically significant.
Conclusion: The angled Sinskey hook, with proper surgical
competency in vertical quick-chop, may be used as an effective
primary chopping instrument for vertical quick-chop nucleotomy
in phacoemulsification.
Key Words: Nucleotomy, Nagahara horizontal chop, Sinskey
hook, phacoemulsification, Vertical quick-chop, Nucleotomy,
Sinskey hook, phacoemulsification, Nagahara horizontal chop
Neuro-ophthalmology
PP-13
Ocular Myasthenia Gravis with Probable Thymoma in a
Prepubertal Male
Jennifer Aurea S. Sarmiento, Karen B. Reyes
Cardinal Santos Medical Center, Philippines
Objective: To report a case of a prepubertal male with ocular
myasthenia gravis and probable thymoma.
Methods: This is a case report.
Results: A 10-year old Filipino male presented with a one-month
history of drooping of the left eyelid. Eyelids are apparently well
upon waking up, but droop towards the end of the day. There
were no noted diplopia, blurring of vision and eye pain. No history
of trauma or any previous eye insults. The patient denied difficulty
in swallowing or breathing. He was born full-term via normal
delivery born to a primi-mother. On examination, visual acuity
was 20/20 in both eyes. Ductions and versions were normal, with
no deviation. Left ptosis was noted. The interpalpebral fissure
measured 9mm on the right and 4 mm on the left. Margin Reflex
Distance (MRD) on the right eye was 4/5 while it was 0/4 mm
on the left. The levator functions were good. There were no lid
swelling, lagophthalmos, and proptosis. Cogan’s lid twitch sign and
Gorlick’s test were positive. Ice pack test showed improvement
of ptosis. Single Fiber electromyogram (EMG) results support
the diagnosis of ocular myasthenia gravis. Chest computed
tomography confirmed the presence of an anterior mediastinal
mass, probably thymoma. The patient was co-managed with
Pediatric service and was started on Pyridostigmine 60mg/tab,
which was gradually increased to 27.8mg/pptab. At 10-month
follow-up, patient showed improvement with pyridostigmine.
Conclusion: We present a rare case of ocular myasthenia
gravis with probable thymoma in a prepubertal male. Ocular
manifestations have stabilized with Pyridostigmine alone.
Key Words: Ocular Myasthenia Gravis, Thymoma, Pyridostigmine
PP-14
Poster Presentations
A Review of Prevalence of Neuro-Ophthalmic Disorders in a
Government Tertiary Hospital in Quezon City, Philippines -
A 4 years Study
Ryan R. Bacani
DOH Eye Center East Avenue Medical Center, Philippines
Objective: Determine the pattern, co morbidities and prevalence
of Neuro-Ophthalmologic cases in a government tertiary hospital
in the Philippines.
Methods: This is a retrospective study of all neuro-ophthalmologic
cases within 4 years - period (January 2008 to December 2011) in
the DOH Eye Center East Avenue Medical Center, East Avenue,
Quezon City, Philippines.
Results: There were a total of 460 neuro-ophthalmic cases
seen during the 4 years study period. With 2011 has the highest
number of cases. The estimated prevalence rate of neuroophthalmic
cases was noted by having the total number of
General ophthalmology consult as denominator per year. Overall,
Vision-related disorders were the most frequently seen, followed
by ocular motility related diseases. Traumatic related disorders
(n = 85 cases, 18.48%) were the most commonly encountered
among neuro-ophthalmic consults. Other primary causes include
Optic Neuritis (11.78%), and Ethambutol toxicity optic neuropathy
(7.83%). Other etiologies noted for the vision related disorders
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