Table of Contents - WOC 2012

Basic: Intraocular Pressure in Clinical Practice
Thu 16 Feb 9:00 - 10:30 Hall 11
IS-GLA-TH 01 (1)
Positional Changes and IOP: New Considerations
Sit Arthur
1. Mayo Clinic
Intraocular pressure (IOP) is known to vary with body position. However, recent
work suggests that head and neck position, as well as posture, affects IOP. IOP
is lowest when measured while sitting with the neck in the neutral position. All
other head and body positions result in an elevation of IOP compared to the
position used for typical clinical measurements. These IOP elevations should
be considered as potential areas of caution for glaucoma patients.
IS-GLA-TH 01 (2)
IOP fluctuation, Peak or Mean: What Matters Most in Managing
Glaucoma?
Susanna Jr. Remo
1. Faculdade de Medicina da Universidade de Sao Paulo
Mean IOP, fluctuation and peak may be independent risk factor for progression.
However, it is extremely important to know which one is the most important
parameter in glaucoma progression. Regarding IOP fluctuation, there are
conflicting results in the literature. Some studies demonstrate that this
parameter is important as a risk factor for glaucoma progression while others
state the opposite. This presentation will show in a practical way how to assess
such parameters and its importance.
IS-GLA-TH 01 (3)
Target Pressures: How Useful Are They?
Hoffmann Esther
1. University Medical Center Mainz
Target pressure is a useful concept in the treatment and management of
glaucoma patients. What does target pressure mean? It is the highest IOP
level that is expected to prevent glaucoma progression. Target IOP depends
on the IOP level before treatment, the stage of glaucoma, age /life expectancy
of the patient, rate of progression (fast versus slow), presence of risk factors.
Target IOP is not a constant but a variable. It might be re-assessed during
follow up of the patient and might require adjustment.
IS-GLA-TH 01 (4)
How Should we be Initiating and Adding Medical Therapy?
Realini Tony
1. West Virginia University
IOP is a dynamic biological parameter. IOP changes resulting from initiation of
IOP-lowering therapy can be masked or mimicked by spontaneous IOP
fluctuations. The monocular drug trial has been utilized for decades as a
means of distinguishing between therapeutic and spontaneous IOP changes.
Recent work demonstrates the monocular trial is not the useful clinical tool it
was once thought to be. In this presentation, the flaws of the monocular drug
trial will be reviewed and an alternative method of assessing the efficacy of
IOP-lowering therapy will be presented.
IS-GLA-TH 01 (5)
Laser Trabeculoplasty and Intraocular Pressure: What Can We
Expect?
Harasymowycz Paul
1. University of Montreal
This practical and study-based presentation should assist delegates in
estimating IOP reduction post SLT, depending on angle pigmentation, type and
number of pre-laser medications, amount of angle treated, as well as duration
of treatment effect.
IS-GLA-TH 01 (6)
Corneal Thickness: Does it Matter?
Morales Jose
1. King Khaled Eye Specialist Hospital
WOC2012 Abstract Book
Goldmann applanation tonometry has been the gold standard for IOP
measurement, but its values are affected by corneal thickness . The Ocular
Hypertension Study suggested that CCT was an important risk factor for OHT
to POAG conversion. This session will address who benefits most from CCT
assessment, whether adjustment formulas for CCT thickness and true IOP
values are useful, how factors that affect CCT/glaucoma development might be
interrelated and instruments less affected by CCT. Clinical practice implications
will be discussed.
Refractive Surgery Techniques: State of the Art
Thu 16 Feb 9:00 - 10:30 Hall 1
IS-REF-TH 02 (1)
Patient Selection and Evaluation for Cornea Refractive Surgery
Klyce Stephen
1. Mount Sinai School of Medicine
Approving candidates for traditional refractive surgery relies on careful
evaluation of the patient during the screening process. Tests include
corneal topography, wavefront if needed, manifest refraction, pupillometry,
IOP, pachymetry, Schirmer or TearLab, cycloplegic refraction, mydriatic slit
lamp exam, and indirect ophthalmoscopy. Corneal topography should be
the first examination before the tear film is altered by drops or prolonged
examination. This talk reviews the best methods to detect abnormalities in
corneal topography-the highest risk factor for the development of ectasia after
refractive surgery.
IS-REF-TH 02 (2)
Surface Ablation
McDonald Marguerite
1. Ophthalmic Consultants of Long Island
Photorefractive keratectomy (PRK) was the first iteration of laser vision
correction. LASIK was developed several years after PRK, to deal with the only
two drawbacks of this safe and highly successful surgery: early postoperative
pain and relatively slow return of vision (1- 2 weeks). Recent breakthroughs
in pharmacology, molecular biology/wound healing, and shield technology
have improved the postoperative comfort and speed of return of vision, making
PRK nearly equal to LASIK in these two areas. These breakthroughs will be
reviewed
IS-REF-TH 02 (3)
LASIK
Sabry Moataz
abstract not available
IS-REF-TH 02 (4)
ReLEx
Ibrahim Osama
ReLEx uses VisuMax laser to cut intrastromal lenticule that is extracted through
a flap-like opening (FLEx) or microincision (SMILE). 349 eyes underwent
procedure. Mean SER was -0.41 D ± 0.63 D and mean astigmatism was
-0.41 D ± 0.63 D with 72% within +/- 0.5 and 89% within +/- 1.0 D. 83% of
eyes showed uncorrected VA of 20/20 or better and 94 % of cases 20/25 or
better. Corneal topography showed excellent centration and flattening . Wave
front measurements showed less induced aberration than LASIK.
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