2. A recent study compared both the normal and low
luminance visual acuity and contrast sensitivity of patients
previously treated with the Visian ICL and nomogram Study groups were younger patients with lower
optimized Wavefront Guided Custom LASIK1* to moderate myopia
• The two sub groups were matched by age and refraction
• LogMAR visual acuity and contrast THE SUPER VISION TEST
Developed by Jeff Rabin, OD, PhD, US Air Force School of Aerospace Medicine
For testing at 4 meters (13 feet, 1.5 inches)
sensitivity on the Rabin Super Vision test Patient Pre-Op Demographics
chart were presented under normal and
log
MAR
R N O V S 0.2
C O H Z V
Visian ICL LASIK
low density light levels Z C R D H
N V S O K
0.1
0.0
S Z N D C
V K C N R
D R Z K O -0.1 K C R H N
Number 47 48
S N H C V -0.2 Z K D V C
- The Rabin Super Vision test–a
C R V S Z -0.3 H V O R K
V K C N H -0.4 R H S C N
S V K D H -0.5 K S V R H
K O H E Z -0.6 Z S K C D
unique test card that allows for both LETTER SIZE 5M, 4/5 13/16.5 (6/7.5, 20/25 EQUIV.)
Age 28 27
Row log
visual acuity and contrast sensitivity
CS
1 Z R K D C S V O N R
Pre-Op Spherical
0.25
2 D N C H V H D R C Z -6.1D -6.0D
measurements on a single chart Equivalent
0.50
3 C D H N R 0.75
K O S V N
4 R V Z O S 1.00
O K Z R D
- Top portion of the chart tests for visual 5 O S D V Z V C H N S
1.25
In normal lighting conditions, the Visian ICL delivered
6 N O Z C D 1.50
Z S V R C
acuity while the bottom half includes 7 R
O
D
K
N
S
S
V
K
Z
1.75
H
N
N
D
C
K
K
V
V
S
outstanding visual outcomes as did the LASIK procedures1
8 2.00
highly calibrated levels of contrast
Cumulative Snellen Visual Acuity
3 Months Postop
Photopic UDVA
• For low luminance simulation, a filter was THE SUPER VISION TEST
Developed by Jeff Rabin, OD, PhD, US Air Force School of Aerospace Medicine
For testing at 4 meters (13 feet, 1.5 inches)
placed in front of the illuminated Rabin Visian ICL LASIK
Super Vision test chart, providing the
log
MAR
R N O V S 0.2
C O H Z V 20/16 57% 58%
Z C R D H S Z N D C
same green color as a night vision goggle
0.1
N V S O K 0.0 V K C N R
D R Z K O -0.1 K C R H N 20/20 96% 94%
display while reducing the luminance from S N H C V
C R V S Z
V K C N H
S V K D H
-0.2
-0.3
-0.4
-0.5
Z K D V C
H V O R K
R H S C N
K S V R H
K O H E Z -0.6 Z S K C D
60-70 cd/m2 to 5 cd/m2
LETTER SIZE 5M, 4/5 13/16.5 (6/7.5, 20/25 EQUIV.)
log
Postoperative Spherical Equivalent Refraction
Row
1 Z R K D C
CS
0.25
S V O N R
3 Months Postop
2 D N C H V 0.50
H D R C Z
3 C D H N R K O S V N
Photopic Refractive Accuracy
0.75
4 R V Z O S 1.00
O K Z R D
5 O S D V Z 1.25
V C H N S
* Surgeon Specific Nomogram Adjustment (DataLink,
6 N O Z C D 1.50
Z S V R C Visian ICL LASIK
Surgivision Consultants, Phoenix, AZ) used to select 7 R D N S K 1.75
H N C K V
treatment profile for excimer laser (Allegretto Wavelight, 8 O K S V Z 2.00
N D K V S
400 Hz, Alcon, TX, USA). +/- 0.13D 49% 40%
Flap creation was performed using a femtosecond
laser (Intralase, AMO). +/- 0.50D 98% 92%
3. At an average correction as low as 6.0D the custom LASIK In low luminance, Visian ICL outperforms the nomogram
optimized Wavefront Guided Custom LASIK, delivering a
procedure induces higher order aberrations (HOA) that can
superior quality of vision–visual acuity and contrast sensitivity
impact quality of vision
Mean Within Subject Change Low Luminance Visual Acuity
• The LASIK procedure increased HOA by over 60%2
Visian ICL LASIK
• No significant increase in higher order aberrations, with the Visian ICL2 0.0
-0.02
• Lower level of HOA in the Visian ICL group may account for the superior
Mean Change in Visual Acuity (LogMAR)
quality of vision seen at low luminance2 -0.04
-0.06
1.5 Lines Better
-0.08 P=NS
-0.10 -0.09
Wavefront Analysis: RMSh at 6.5mm Pupil
-0.12
P=0.044
0.6
-0.14
Visian ICL -0.14
0.5 -0.16
LASIK
P=NS
• The Visian ICL low luminance visual acuity improved significantly by 1.5 lines1
0.4 P=<0.001
• There was no statistically significant improvement in the LASIK group1
0.3
RMSh
0.2
Mean Within Eye Change Low Luminance Contrast
4
0.1 0.37
0.35
P<.001
Mean Change in Contrast Acuity
0.0 0.3
Pre-Op 3 Months Pre-Op 3 Months
0.25 0.28
Visian ICL LASIK
0.2 P<.001
1.5 Lines Better
0.15
0.1
0.05
0
References Visian ICL LASIK
1. Parkhurst, GD. Comparison of Night Vision and Contrast Sensitivity in Patients Undergoing Implantable Collamer Lens Implantation or LASIK. Presented at: American Academy
of Ophthalmology (AAO); October 19, 2010; Chicago, IL.
• Low luminance contrast sensitivity improved in both groups with a
2. Parkhurst, GD. Comparison of Higher-Order Aberrations After Copolymer Phakic IOL or LASIK for Myopia. Presented at: American Society of Cataract and Refractive Surgery
(ASCRS); March 29, 2011; San Diego, Ca. statistically significant gain of 1.5 lines with the Visian ICL group1
