Table of Contents - WOC 2012

WOC2012 Abstract Book
Femto Olympics: My Femto Laser is the Best
Sun 19 Feb 10:30 - 12:00 Hall 10
IS-REF-SU 283 (1)
iFS
El-Danasoury Alaa (1)
1. Magrabi Hospitals and Centers
Abstract not available
IS-REF-SU 283 (2)
VisuMax
Shah Rupal (1)
1. New Vision Laser Centers
The presentation will highlight different aspects of the VisuMax Femtosecond
laser from Carl Zeiss Meditec, and in particular will focus on the possibilities
of ReLEx, a unique flapless, bladeless, painless single laser approach to
refractive surgery. The different characteristics of the VisuMax, which makes
it particularly suitable for an all-in-one procedure like ReLEx, will also be
discussed. We shall also attempt to characterize differences between the
VisuMax and other commercially available femtosecond lasers in the refractive
surgery domain.
IS-REF-SU 283 (3)
The New WaveLight FS200 Femtosecond Laser
Gatinel Damien (1)
1. Rothschild Foundation
The FS200 is a femtosecond laser which allows customizing the corneal cuts.
The FS200 laser offers the ability to freely relocate the centration of the flap
within a 10-mm-diameter area. This relocation does not incur flap diameter
reduction. With the FS 200 laser, 8-mm, 120-µm flaps can be cut in typically
less than 10 seconds. In total, the suction ring remains on the eye for less than
30 seconds while the flap is cut.
IS-REF-SU 283 (4)
Femto LDV
Seiler Theo
Abstract not available
IS-REF-SU 283 (5)
Femto and Sub Bowman›s AK
Kymionis G. (1)
1. University of Crete
Astigmatic keratotomy (AK) involves placement of accurate incisions in the
corneal stroma in order to reduce post-surgical as well as naturally occurring
astigmatism. Femtosecond laser-assisted astigmatic keratectomy (FS-AK) has
been shown to be effective in reducing astigmatism. FS-AK can be performed
to correct post-keratoplasty residual astigmatism (e.g. PKP, DSAEK) as well
as naturally occurring astigmatism. Advantages and results of FS-AK over
conventional techniques will be discussed and analyzed. Surgical planning
and experience pearls of FS-AK procedure will be also discussed.
IS-REF-SU 283 (6)
Opaque Bubble Layer
Colin Joseph
Abstract not available
IS-REF-SU 283 (7)
Suction Loss
Saad Alain (1) , Gatinel Damien
1. Rothschild Foundation
Flap creation is one of the most crucial steps of LASIK. Although flap
complications with the femtosecond laser are uncommon, it is important for
a surgeon to know how to approach situations such as loss of suction as it
arises. The best way to deal with a complication is to understand the methods
to prevent it and to master the technique to manage it when it happens.
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IS-REF-SU 283 (8)
Vertical Gas Breakthrough
Chang John (1)
1. Hong Kong Sanatorium and Hospital
Vertical Gas Breakthrough is a femto-LASIK complication which is rare but is
difficult to manage. It can cause a button-hole like flap complication if the
flap is lifted forcefully. To deal with this intraoperatively, the best solution is
mechanical microkeratome flap re-cut. It is more beneficial to both the surgeon
and patient when compared with surface ablation or deferred operation. The
technique and precautions of using microkeratome in VGB and other possible
managements will be discussed.
IS-REF-SU 283 (9)
Femtosecond Deep Anterior Lamellar Keratoplasty
Daya Sheraz (1)
1. Centre for Sight
Purpose: Describe the method and outcomes of using the Femtosecond laser
to create a novel geometric pattern a modified mushroom trephination (Zag-
Square Profile) for Deep Anterior Lamellar Keratoplasty.
Methods: Outcomes of FSDALK were evaluated in 14 consecutive eyes of 14
patients. Measures included uncorrected (UVA) and best corrected visual
acuity (CDVA), keratometric and refractive astigmatism, spherical equivalent
(CE) and any adverse events.
Results: 10 male and 4 female patients underwent surgery for keratoconus
(n=10) and scarring (n=4).Identical geometric cuts were performed on donor
and host. Donor corneas were mounted on an artificial air anterior chamber.
The anterior aspect of donor and host was undermined (130 deg), extending
from 8.0mm to 8.6mm and the posterior diameter was7.3mm. Big bubble
technique was attempted in 9 eyes and accomplished in 6. Remaining eyes
underwent posterior lamellar dissection using Melles optical recognition
method. Uninterrupted suture was used in all cases. Epithelialisation occurred
by Day 5 postop. Clinically at 6 weeks, good graft-host geometric apposition
was noted and confirmed by OCT. Mean uncorrected visual acuity (UVA)
was 20/80 at 3, 6 &12 months postop. At 6W 50% had CDVA of 20/40 or
betterincreasing to 83% at 3M.Mean keratometric cylinder at 6 months was
4.00D (SD 2.06) and refractive cylinder 3.87D (SD 1.62). Mean SE at 6M
was -0.98D (SD 2.12).There were 3microperforations with 2 double anterior
chambers postoperatively.
Conclusion: FSDALK with an anteriorly undermined modified mushroom
technique combined with manual dissection is a safe and promising technique
which results in rapid visual rehabilitation.
Strabismus in Children
Sun 19 Feb 10:30 - 12:00 Conference Room A1
IS-STR-SU 284 (1)
Management of Intermittent Exotropia
Holmes Jonathan (1)
1. Mayo Clinic
Intermittent Exotropia is one of the most common types of childhood
strabismus, but despite its frequency, there is still much debate regarding
the best way to assess severity, when to perform surgery and what type of
surgery to perform. Recent studies on assessing strabismus angle, control,
distance stereoacuity, near stereoacuity, convergence amplitudes, and healthrelated
quality-of-life, will be reviewed. Approaches to the management of
intermittent exotropia will be discussed. Ongoing randomized clinical trials will
be presented.
IS-STR-SU 284 (2)
Unmasking Masked Bilateral Congenital SOP
Plager David (1)
1. Indiana University
Infants with apparently unilateral SOP are sometimes found later to have
bilateral SOP. Many of these can be diagnosed or at least suspected with use
of intraoperative exaggerated traction testing of the superior oblique tendons.
Examples will be shown via video.