1. Three to 6-month follow-up after bilateral implantation of ReSTOR aspheric +3D
Thomas Kohnen, MD
Department of Ophthalmology
Goethe University Frankfurt am Main, Germany
Visiting Professor, Cullen Eye Institute
Baylor College of Medicine, Houston, TX, USA
This research was supported by Alcon Laboratories, Inc.,
but Dr Kohnen has no financial interest in the products presented.

2. Methodology
Twenty candidates for bilateral implantation of multifocal IOLs
Expressed interest in presbyopic correction
Need for intermediate vision
Evaluations
Preoperatively and at 1, 3 and 6 months postoperative
Objective measures
Visual acuity
Distance (high and low contrast)
Intermediate (50, 60, 70 cm)
Near (40 cm and near at preferred distance)
Defocus curve
Subjective measures
Patient questionnaires

3. ReSTOR +3 D Multifocal IOL
Central 3.6-mm apodized diffractive disk
Adds +3 D at lens plane, yielding +2.5 D at the spectacle plane
Of available light energy,
half to near focus
half to distance focus
Outer refractive annulus, devoted to distance focus

4. Mean Uncorrected Visual Acuity 6 month postoperative
20/20, J1+
20/25, J1
Visual acuity, Snellen & Jaeger
n=17
20/32, J2
Preferred near distance = 37 ± 4 cm

5. Intermediate UCVA at 50cm 6 month postoperative

6. Intermediate UCVA at 60cm 6 month postoperative

7. Intermediate UCVA at 70cm 6 month postoperative

8. Mean Combined UCVA 6 months postopereative
Combined UCVAs:
Distance
Intermediate: 50 cm, 60 cm, 70 cm
Near at preferred distance
n=17

9. Low Contrast Acuity 3 months postoperative
photopic Conditions
mesopic Conditions
n=19
n=19

10. Visual Disturbances average difficulty score Preop5
halo
glare 4
night vision 3
average difficulty score 2 1
Preop 3 6
Postoperative time, months
For the same 17 patients at all time points Based on a 5-point scale: 1 = no difficulty, 5 = severe difficulty

11. Conclusion
Bilateral implantation with ReSTOR SN6AD1 IOLs provided patients with good vision on all measures:
Near vision
Preferred near focus was ~37 cm
Average UCVA was <0.1 logMAR, J1 or better
Depth of optimal focus spread from 40 cm to 50 cm
Intermediate vision
Average UCVAs for all intermediate distances were 0.18 logMAR or better (equivalent to 20/30 Snellen, J2)
Distance vision
Good high-contrast and low-contrast visual acuity
Visual disturbances generally decreased preop to postop