Table of Contents - WOC 2012

PO-CAT-26
Piggy Back ioil Implantation and Pigmentary Dispersion Syndrome
Martinez Olga (1) , Dyrda Agnieszka (1) , Nahra Daniel (1)
1. Hospital de l´Esperança - UAB
Purpose: To study a pigmentary dispersion syndrom after a piggy back IOL
implantation.
Methods: An 80 years cataractous patient has been operated of both eyes. A
refractive surprise of +4.5 D was detected in her right eye 2 months later
because of failure in patient follow up. Because of capsular fibrosis it has been
decided a refractiive Piggy back implantation instead of IOL exchange. Final
best corrected visual acuity was 20/20. 3 years later patient follow up showed
iris atrophy, iris positive transilumination, IOP rise of 24 mmHg (with full IOP
medication), pigment on inferior irido.corneal angle and corneal Kruckenberg
huse with no changes on visual field and retinal fiber layer (HRT). At that
moment an IOL exchange was decided.
Results: After IOL exchange IOP falls down to 10 mmHg without medication,
best corrected visual acuity was 20/30 and pigment on inferior irido-corneal
angle became diminished.
Conclusion: When a piggy back implantation had to be planed, secondary
implant should no have squared edges because of possible compliication such
as pigmentary dispersion syndrom or ocular hipertension.
PO-CAT-27
Impact of Axial Myopia on Cataract Surgical Outcome: Vision
Improvement and Rate of Complications
Al Muammar Abdul Rahman (1) , Al Harkan Dora (1) , Al Rashidi Sultan (1) , Al
Suliman Sarah (1) , Mousa Ahmed (1)
1. King Saud University
Purpose: To compare visual outcome and rate of complications in patients with
increased axial length (? 25mm) and those with normal axial length (22-
23.5mm).
Methods: Data was collected retrospectively for cataract patients between
2000 and 2010. Inclusion criteria; being 15 + of age and completion of at least
one month follow up. A matching control group of 500 patients was randomly
selected with axial length (22-23.5). Analysis was done to compare results
from both groups.
Results: The prevalence of high myopia is 13.6% among cataract surgical
cases. Vision has improved in 83.3% of cases, and in 82.8% of controls.
However the mean logMAR improvement in controls (0.85) significantly
exceeded that of cases (0.71), p = 0.008. Posterior capsule rupture occurred
in 4.1% of cases compared to 1% in controls (p=0.0056). Retinal detachment
occurred in 4.4% of cases while it was 0.2% among controls. Posterior capsular
opacity was seen in 13.4% of cases, 11.4% of controls (Yag was needed to
55.1%, and 49.1% of them respectively).
Conclusion: Increased axial length is a risk factor for less vision improvement
and high rate of complication in cataract surgery.
WOC2012 Abstract Book
PO-CAT-28
The Effect of the Corneal Edema After Cataracts Surgery on Pascal
Dynamic Contour Tonometer, Goldmann Applanation Tonometer and
Pneumotonometer.
Colas Teresa (1) , Prieto del Cura Mar (1) , Villafruela Guemes Ines (1) , Fernandez
Granda Ana (1) , Rivas Chica Oswaldo Keller (1)
1. Hospital del Tajo
Purpose: To determine the effect of corneal edema after phacoemulsification
cataract surgery on intraocular pressure (IOP) using dynamic contour tonometer
(DCT),Goldmann applanation tonometer (GAT) and pneumotonometer (PT).
Methods: 104 patients were included. PT IOP, GAT IOP, DCT IOP, ocular pulse
amplitude (OPA), and central corneal thickness (CCT) were measured one
day before surgery and one day, one week and one month after it. 84 patients
finished the study. Paired t-tests, Spearman correlation, and Bland-Altman
plots were used.
Results: Corneal edema induced by phacoemulsification resulted in statistically
significant increases in CCT (86,8 m SD 55,3 ;p< 0,001), DCT IOP (5,49
mmHg, SD 8,0; p< 0,001),GAT IOP (1,9 mmHg, SD 4,64;p< 0,015),PT
IOP(1,74 mmHg,SD 5,71 ;p