1306477444@Prof. Pallikaris 12 Months WIOL-CF Evaluation
-
Upload
andres-bujan-rivas -
Category
Documents
-
view
13 -
download
2
Transcript of 1306477444@Prof. Pallikaris 12 Months WIOL-CF Evaluation
One year results after WIOL – CF accommodative
intraocular lens implantation
Institute of Vision and Optics
University of Crete School of Medicine
Heraklion, Crete Greece
Dimitra Portaliou, George Kymionis, Sophia Panagopoulou, Georgios
Kontadakis, Ioannis Pallikaris
WIOL – CF Basic properties
The WIOL - CF accommodative design
is based on the biomimetic principle.
The hydro gel material used and the lens
geometry simulate some of the key
properties of the crystalline lens itself.
The WIOL – CF can be actually
considered more as a natural product and
not a typical engineered one.
WIOL – CF Basic properties
Lens characteristics were selected to
secure adequate contact with the
biggest part of the posterior capsule
but not alteration of the capsule shape.
Large continuous aspheric optics
assures lens centricity and reduces
reflections and halos that can cause
night vision problems.
The lens design is intended to provide
up to 2.0 diopters
of“pheudoaccommodation” capability
facilitating near vision.
WIOL – CF geometry
WIOL – CF can be
inserted through a
2.8mm incision.
Once the lens is
inserted, it unfolds
inside the capsule and
gradually hydrates by
the fluid present in the
eye.
Complete hydration is
succeeded within the
first 48 hours
and full equilibrium
with the eye fluids is
achieved.
Materials and Methods25 patients (50 eyes)
Mean age: 67, 4 ± 7, 13 years
(range from 56 to 81 years)
12 male, 13 female
All patients underwent routine
cataract surgery and WIOL – CF
accommodative intraocular lens
implantation .
Mean follow up 7,33 ± 2,3 months
(range from 5 to 12 months)
Exclusion Criteria
Astigmatism higher than 1.25 diopters
Pre-existing ocular history: corneal endothelial disease, abnormal cornea, macular
degeneration, retinal degeneration, glaucoma, and chronic drug miosis.
Previous refractive surgery
Retinal conditions or predisposition to retinal conditions, previous history of/or
predisposition to: retinal detachment or proliferative diabetic retinopathy.
Amblyopia
Clinically severe corneal dystrophy (e.g., Fuchs')
Extremely shallow anterior chamber
Recurrent anterior or posterior segment inflammation of unknown etiology, or any
disease producing an inflammatory reaction in the eye (e.g. iritis or uveitis).
Aniridia
Optic nerve atrophy
Trauma
Video
Results
Uncorrected Distance Visual
Acuity (UDVA) improved
from 0,45 ± 0,21 (range from
0,1 to 0,9) preoperatively to
0,66 ± 0,13 (range from 0,4 to
1) at the last follow – up
(Figure 3)
Corrected Distance Visual
Acuity (CDVA) improved
from 0,57 ± 0,19 (range from
0,2 to 1) preoperatively to 0,75
± 0,11 (range from 0,6 to 1) at
the last follow up (Figure 4)
0
0.2
0.4
0.6
0.8
Preoperative Last Follow upFigure 3
Figure 4
0
0.2
0.4
0.6
0.8
Preoperative Last Follow up
Safety
No eye has lost lines of CDVA
71% of eyes has gained lines of CDVA
Results
64% of our patients had J1 , J1 – J2, at the last follow
up, measured with Birkhauser reading charts at a distance of
35cm under photopic conditions.
0
2
4
6
8
10
12
14
16
18
J1 J1 - J2 J2 - J3 J3 - J4 J4 - J5 > J5
Accommodation assessing with the iTrace
Far
Near
Difference Map
J1
Accommodation assessing with the Wasca
FAR NEAR
Conclusions
WIOL – CF can be considered a very promising alternative
solution for patients that lead an active life and require good
vision near, intermediate and far. In our patient series all
patients obtained some level of accommodation which
remained stable throughout the follow – up period.
No complications occurred intra or postoperatively.
Larger series of patients and longer follow-up is necessary in
order to confirm the encouraging results
Thank you for your attention