Table of Contents - WOC 2012

PO-RET-144
Scleral Buckling Surgery with Laser Photocoagulation in
Rhegmatogenous Retinal Detachment
Nili Ahmadabadi Mehdi (1) , Rafiei Fatemeh (1) , Karkhaneh Reza (1) , Movasat
Morteza (1) , Riazi Mohammad (1)
1. Tehran University of Medical Sciences
Purpose: To determine the success rate of scleral buckling surgery with laser
photocoagulation in patients with rhegmatogenous retinal detachment.(RRD)
Methods: In a case series study, 94 patients with RRD underwent scleral
buckling surgery with application of laser photocoagulation on the buckle and
around the breaks by indirect ophthalmoscope intraoperatively or conventional
technique postoperatively. Results .94 patients with mean age of 52.8years
(range17-80 year). Including 73% phakic and 27% pseudophakic or aphakic
.The grade of PVR was from B _ C1. Anatomical success rate was 100%
intraoperatively. Redetachment was occurred in 9 patients between 3 to 12
weeks after surgery so anatomical success rate with single operation was
90.4%. The redetached cases were managed by SF6 injection and laser
reapplication or pars plana vitrectomy . Mean follow up time was 81 months.
Conclusion: Considering the adverse effects of cryopexy and its role in PVR
formation which is the major cause of failure in scleral buckling surgery, laser
photocoagulation can be a good substitute to create chorioretinal adhesion
and obtain acceptable results.
PO-RET-145
Effects of vitrectomy for recurrent macular edema due to branch
retinal vein occlusion after intravitreal bevacizumab
Yunoki Tatsuya (1) , Yanagisawa Shuichiro (1) , Mitarai Keiichi (1) , Ishida Nobuo
(2) (1)
, Hayashi Atsushi
1. Department of Ophthalmology, University of Toyama
2. Shida Eye Clinic
Purpose To evaluate effects of pars plana vitrectomy (PPV) for recurrent
macular edema after intravitreal bevacizumab (IVB) injections for macular
edema due to branch retinal vein occlusion (BRVO). Methods This study
included 22 eyes of 22 patients who underwent single or multiple IVB injections
for macular edema due to BRVO and showed a recurrence of macular edema.
The patients underwent PPV for recurrent macular edema. They were followed
up more than 6 months after the surgery with examinations of best-corrected
visual acuity (BCVA) and OCT. OCT parameters such as central macular
thickness(CMT), average retinal volume and thickness in a circular region of
1mm diameter at the fovea(MRT) were evaluated.
Results: Mean IVB injections were 2.4-1.6 and mean period between the first
visit and the PPV was 248-116 days. At 3 and 6 months after the surgery,
mean BCVA was significantly improved compared to preoperative BCVA. CRT,
MRT were significantly improved after 1 month of the surgery. No eyes showed
worsening of macular edema after the surgery. Conclusions PPV improved
macular edema in BRVO after 1 month of the surgery. PPV may be one of the
treatment options for recurrent macular edema due to BRVO.
WOC2012 Abstract Book
PO-RET-146
Pharmacologic prevention of proliferative vitreoretinopathy for cases
of rhegmatogenous retinal detachment at high risk.
Saeed Ahmed M. (1)
1. Banha University
Objective: to evaluate the efficacy of adjuvant combined 5-fluorouracil (5-FU)
and low molecular weight heparin (LMWH) applied on intravitreal infusion
during vitrectomy to prevent proliferative vitreoretinopathy (PVR) in patients at
risk of developing PVR.
Methods: prospective clinical study, 28 eyes of 28 patients suffered from
rhegmatogenous retinal detachment (RRD) at risk of developing postoperative
PVR underwent pars plana vitrectomy (PPV). They were equally divided into
group (A), ‹treatment or adjuvant receiving group›, and group (B), ‹placebo or
control group›.
Results: The success rate among group A was 78.6%, while among group B
was 71.4% with (P>0.05) statistically non-significant increase. Regarding the
final retinal status 6 months postoperatively. there was a statistically nonsignificant
increase in the number of attached retinae among group A compared
with group B. There was a statistically non-significant decrease in the rate
of postoperative PVR among group A compared with group B. No serious
complications or toxic effects were recorded. Conclusion; Combining 5-FU and
LMWH intraoperative during vitrectomy proved to be safe with no toxic ocular
effects. They proved to be effective but not to a statistically significant level.
PO-RET-147
Pars Plana Vitrectomy in Eyes with Refractory Diabetic Macular
Edema Complicated by Vitreo Macular Traction.
Al Kandari Jamal (1) , Raizada Seemant (1)
1. Vitreo Retinal Unit, Al Bhar Eye Center.
Purpose: To evaluate role of Pars-Plana Vitrectomy (PPV) in refractory Diabetic
Macular Edema (DME) complicated by vitreo Macular traction (VMT). Method:
Prospective, non-randomized, non-comparative, interventional case cohort
study. Inclusion criteria was (a) known diabetic patient (b) Optical coherence
tomography (OCT) documented VMT (c) central subfield OCT thickness more
than 250 microns. Primary outcome measured were (a) BCVA in LogMAR units
(b) Mean central macular thickness on OCT examination. To find the relation
between pre-operative and post-operative values of BCVA and OCT reading,
paired-t test was calculated.
Results: Post operative median BCVA of 0.699 logMAR units was better than
pre-operative mean visual acuity of 0.864 logMAR units (two tailed p value
equals 0.0172). Preoperative mean OCT reading was 413.73 microns which
was much more than post operative median OCT reading of 249.92 microns
(two tailed p value equals 0.0001). 16 eyes (61.54%) showed improvement in
vision. 4 eyes (15.38%) showed no change from pre operative visual status
and 6 eyes (23.08%) showed decrease in vision post operatively
Conclusion: PPV in DME associated with VMTS resulted in improved visual
acuity in majority of eyes. Despite decrease in retinal thickness in all the eyes,
vision improved in 61.54% eyes.
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