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