Table of Contents - WOC 2012

PO-CAT-79
The New Helical Composite, Sulcus Supported, A/C Located, Phakic
IOL.
Mehta Keiki (1) , Mehta Cyres (1)
1. Mehta International Eye Institute
Purpose: A phakic IOL in the shape of a Helix, sulcus supported, A/C located.
Method: The implant, made of Hema Acrylate has a helical (Cambridge dict: “a
screw shaped coil”) looped structure which has the best and most stable
placement for an implant .The tips of the loop have a flat planar surface (to fit
better on the sulcus) with the tip slightly upturned (Ski lift) to prevent zonular
entanglement during insertion. Two Yag iridotomies done. IOL placed in A/C
and rotated via the openings to sit on the sulcus.
Results: 105 cases followed 28 months had mean age of 32 (Range 24-53
years). Pre-op power varied from -14 to -22 and +8 to +16. All had a scotopic
pupil size less than 5mm. Visual acuity was achieved at 20/30 in 86% of the
cases, with virtually no outstanding complications.
Conclusion: At twenty eight months virtually all patients could drive with a small
addition, those below the age of 40 years could read a newspaper without
spectacle correction. All of the patients are 20/30 or better.
PO-CAT-80
The Bent ‹Shark-Tip› For More Effective Torsional (Ozil)
Phacoemeulsification.
Mehta Keiki (1) , Mehta Cyres (1)
1. Mehta International Eye Institute
Purpose: New Shark-tip was designed for the OZil handpiece. Study was
made to evaluate efficiency of this tip on conventional kelman tip in torsional
(OZil) phacoemulsification.
Methods: Grade 3 nucleus was selected, and hydroelevated from the capsular
bag so that they stood erect. Using phaco burst, and back chopping, using a
blunt chopper, the nucleus was split in to four equal parts. Randomly allocated,
first or last two bits were removed with shark tip Ozil and residual with regular
tip with constant settings.
Results: Evaluating time taken nuclear fragment removal in each case it was
patently obvious, shark-tip moved faster and ate the fragments with grater
rapidity. Timings depended on each case density of nucleus but on an average
time was 28 % less in usage (8.8 to 14 seconds +/- 2.8). Surgeon ease and
facility was also evaluated with rating of 1- 5, with 5 being the best. Again the
rating showed a change. Absence of repulsion with OZil perhaps led to this tip
design being better than conventional 15 degree tip.
Conclusions: New tip speeds up torsional phaco even with hard nucleus and
should be considered as idea tip for this procedure.
PO-CAT-81
Cataract Surgery Complication Rate in a Tertiary Eye Care Centre
- Our Experience
Patil Vinay M (1) , Gaydhanker Raviraj (1) , Dinakaran Shoruba (1)
1. Narayana Nethralaya , Narayana Hrudalaya Health City
Objective and Purpose: Incidence of complication in cataract surgery
performed by residents on camp patients.
Methods: Our hospital performed cataract surgery on 885 (885 eyes) camp
patients. As a part of retrospective observational study (period - Sep›10 to
May›11), the incidence of cataract surgery complication was noted.
Results: Mean age group for cataract surgery was 57.5 years (28 to 87 years).
Male to female ratio of the patients who underwent cataract surgery was 1:
1.1 (429:456). Most common complication noted was tunnel related - 8.13%
(72/885), followed by posterior capsular rent -4.4% (39/885), iridodialysis
was 1.01% , zonular dialysis was 0.67%, descement detachment 0.67%, and
choroidal detachment 0.226%.
Conclusion: Tunnel related complication was the most common, followed by
posterior capsular rent. This complication rate can be reduced by proper
supervision, good case selection and effective teaching methodologies.
WOC2012 Abstract Book
PO-CAT-82
Endothelial and Morphological Changes in Anterior Segment
Induced by 1.8 mm Microcoaxial Phacoemulsification and
Implantation of Single-Piece Hydrophilic Acrylic IOL
Chin Jorge (1)
1. Instituto Nacional de Rehabilitacion
Purpose: Quantify the endothelial loss, anterior chamber and iridotrabecular
angle variation after an uneventful 1.8 mm. microcoaxial phacoemulsification
and MI60 IOL implantation.
Methods: A prospective, longitudinal, observational and descriptive study was
conducted. Clinical ophthalmological evaluation was performed, endothelial
cell counting was made using specular microscopy, anterior chamber depth
(ACD) and iridotrabecular angle (ITA) at superior, nasal, inferior and temporal
locations were measured using anterior segment OCT before and one month
after an uneventful phacoemulsification procedure using 1.8 mm microcoaxial
incisions and MI60 IOL implantation and Phaco Chop technique.
Results: 20 eyes were studied. Average age was 64. Mean VA was 20/25.
Average endothelial cells loss was 7.39%. Average PCA depth increase was
1.9 mm. and average IAT widening was 6.76 (superior), 18.1 (nasal), 8.9
(inferior) and 16.03 (temporal).
Conclusion: Phacoemulsification and IOL implant changes the anterior
segment morphology. We found more anterior chamber deepening in this study
in comparison with other similar reports using different IOL configurations.
Probably due to MI60 IOL shape. Iridotrabecular angle widening is similar to
other studies. There is no correlation between IOP and iridotrabecular angle
widening. Microcoaxial phacoemulsification using Phaco Chop causes less
endothelial loss than Stop and Chop Technique.
PO-CAT-83
Pre-Operative O.C.T Assessment of the Macula is Useful to Prevent
Visual Suprises After Cataract Surgery in Non Mature Cataracts
Nath Sanjeev (1,2) , Sherman Jerome (1,3) , Hosssain Sheikh M (1) , Epstein Dan
(3) (1)
, Nath Anjali
1. Eye Institute and Laser Center
2. New York Eye and Ear Infirmary
3. Suny College of Optometry
Purpose: To determine if OCT of the macula prior to cataract surgery reveals
additional information that may warn the clinician regards potential visual
compromise after surgery.
Methods: 132 eyes with symptomatic reduction of vision and clinically
significant cataracts underwent OCT of the macula during pre-op testing in
preparation for cataract surgery.
Results: 18 eyes were found to have vitreo- retinal abnormalities that were
significant. In 6 eyes this resulted in clinical management.
Conclusions: OCT is a simple test to perform in eye with mild to moderate
cataracts and provides useful information prior to surgery.
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