Table of Contents - WOC 2012

WOC2012 Abstract Book
PO-CAT-39
Prospective Randomized Comparison of Conventional Coaxial
Phacoemulsification and Microcoaxial Phacoemulsification.
Gupta Ved (1) , ROHATGI JOLLY (1) , GEHLOT SONIA (1)
1. University College of Medical Sciences & G.T.B.Hospital
Objective and Purpose:This study compared results of microcoaxial
phacoemulsification (CMICS) versus conventional coaxial
phacoemulsification(CCP).
Methods: 80 eyes (77patients) with senile cataract were randomized into 2
equal groups. Gr 1:3.2 mm corneal CCP; Gr 2: coaxial MICS with a 2.2
mm corneal incision, with foldable IOL in both Gr. Parameters: total surgical
time(TST), effective phaco time (EPT), AC stability, total fluid volume, BCVA,
corneal astigmatism, surgically induced astigmatism (SIA) and central corneal
thickness (CCT).
Results: Mean TST Gr 2:35.63 min Gr 1:30.88 min; Mean EPT Gr1: 17.10 sec,
Gr2:10.75 sec; Irrigation fluid: Gr2: 88.33 ml, Gr1:61.10 ml; Thermal corneal
damage 50% of Gr2; Gr1:nil. AC stability: comparable. BCVA day 90: Gr 1:
0.14, Gr 2: 0.07 Log Mar. Postop. tunnel opacity: Gr2: 50% cases. Increase in
CCT postop. day 1: gr 2: 15.01%,Gr 1: 7.56%. Day 90 cylinder: gr 1:1.2 D, Gr2:
0.8 D. Mean SIA Gr 1 = 0.79 D; Gr 2 = 0.76 D.
Conclusion: CMICS was as safe and as effective as conventional phaco.
CMICS uses significantly lesser EPT and energy. SIA and BCVA were
comparable in both techniques.
PO-CAT-40
Crystal Clear Cornea on Postoperative Day One
Kodur Satyamyrthy (1) , Chakrabarti Arup (2)
1. M.M.Joshi Eye Institute
2. Chakrabarti Eye Care Centre
Synopsis: This poster deals with phaco techniques and strategies to minimize
intraoperative endothelial trauma to deliver crystal clear cornea on postoperative
Day one. It deals with thorough preoperative corneal evaluation, appropriate
modulation of ultrasonic energy and fluidics, choice of Ocular Viscosurgical
Devices and irrigating fluids and strategies to optimize their role, intraoperative
strategies to prevent endothelial trauma and complications like Descemet’s
membrane detachment, and management options in high risk cases with low
endothelial counts.
Objective: This poster helps the delegate to learn how to minimize endothelial
trauma in phacoemulsification thereby achieving Crystal Clear Cornea - on
postoperative Day One.
472
PO-CAT-41
Use of Rhabdoviridae Vesiculovirus Piry in a Model of Experimental
Ocular Contamination During Sequential Phacoemulsification
Procedures
Vannucci-Garcia Tatiana (1) , Velasco e Cruz Antonio Augusto (1) , Silva Paula
Jayter (1) , Figueiredo Luiz Tadeu (1) , Pinto Coelho Roberto (1)
1. Medical School of Ribeirao Preto, University of Sao Paulo
Objective: To verify the incidence of contamination by the vesuculovirus piry
during sequential phacoemulsification.
Methods: An experimental model was carried out using 4 pigs´ eyes
contaminated with piry virus and 4 pigs´ eyes without contamination. After the
infection, the cataract surgery was performed by phacoemulsification alternating
from a contaminated eye to a non-contaminated eye. From one surgery to
another, all the operating devices were exchanged. just the handpiece and
irrigation and aspiration systems were maintained. The presence of genetic
material of the vesiculovirus piry in this experimental model was verified using
RT-Nested-PCR reactions.
Results: All the contaminated eyes had positive outcome and all noncontaminated
eyes had negative outcome. different components of the
phacoemulsification machine were, also, contamined. two samples of the
anterior chamber of the non-contaminated eyes gathered after the surgery
were positive.
Conclusions: All the components of the phacoemulsification machine were
contaminated after the cataract surgery from contaminated eyes with the
piry virus. Moreover, in two previously non-contaminated eyes could be
detect the presence of genetic material after the phacoemulsification surgery,
demonstrating that at one moment of the surgery occurred the transmission of
genetic material of the virus piry.
PO-CAT-42
Bilateral Simultaneous Cataract Surgery in Children
Karim-Zade Khakima (1) , Madhavi G (1) , Boddu S (1) , Raju Leela (1) , Raju VK (1)
1. Goutami Eye Institute
Introduction: Bilateral simultaneous cataract surgery (BSCS) under general
anesthesia is not commonly performed, often due to concerns of
endophthalmitis. There are some instances where it may be beneficial,
especially in children. We will present our experience with BSCS in children at
the Goutami Eye Institute.
Methods: Medical records for pediatric patients who underwent BSCS from
June 2006 through May 2009 at the Goutami Eye Institute in Rajahmundry,
India were retrospectively reviewed. Study population was comprised of 23
patients (46 eyes) ranging from 1 month to 11years at surgery. Patient medical
records were reviewed for data including age at surgery, gender, history of
consanguinity, type of anesthesia, surgical technique, IOL power if implanted.
Pre, Post op visual acuity, intra and post op complications and post surgical
refraction were noted.
Results: All of the patients vision was the same or better postoperatively. Vision
ranged from light perception to 20/40. There were no cases of endophthalmitis.
Conclusions: Most commonly stated reason to not perform BSCS has been
endophthalmitis. In the present study, we did not encounter any cases of
endophthalmitis. In certain scenarios, BSCS may be more safe, feasible, and
prevent the patient being lost to follow up.