Transcript Progressive Multifocal Intraocular Lens G. P. Rubiolini

Slimming diet for a Multifocal IOL
Peculiarities of Models
Micro-Incision vs. Modified “C”
G. Gallo M.D.*
G. Rubiolini M.D.**
Italy
www.grvision.com
Disclosure of finanacial interest
* Author has no financial interest in this paper.
** Author's research is partially funded by Imperial Medical Technologies
Cartersville GA, USA who produced, developed and supplied the product presented.
- PURPOSE The Micro-Incision Phaco procedure is widely
becoming the “Standard” for Cataract
surgery. This means ALL Multifocal IOLs
“Diffractive” & “Refractive” must be injected
with a <2.2mm Corneal Tunnel. Due to their
“Optical Geometry” Diffractive lenses have
dominated because Modified “C” lenses can
have problems with cartridges of <2.75mm.
Contd.
Can a new Refractive, “Progressive”
Multifocal, Micro-Incision Plate style
IOL using new “Optical Geometry” be
implanted using a <2.2mm tunnel and
be as successful as a Modified “C” IOL
using a 2.75mm corneal tunnel ?
- MATERIALS AND METHODS HP60CM – Hydrophilic Progressive – Multifocal
Mod. “C” with “Refractive” optics.
HP60CM – Hydrophilic Progressive – Multifocal
Micro-Incision with “Refractive” optics.
IOL CHARACTERISTICS
Mod “C” Optic: 6.00mm
Total Length: 12.00mm
AC - Depth:
5.30mm
A - Constant: 118.4
Suggest Formula: SRK/T
Micro Plate: 6.00mm
Total Length: 11.00mm
AC - Depth:
5.30mm
A - Constant: 118.4
Suggest Formula: SRK/T
THE IMT SOLUTION - NO LINES
PRESBIOPTICxTM by Imperial Medical, Cartersville, GA USA.
The characteristic absence of lines is an IMT - Patent Pend.
EMPLOYING
“THREE DIMENTIONAL CLOTHOID CURVE”
TECHNOLOGY
• Engineers reduced the thickness of
the optic disc.
• Eliminated areas for Halos & Glare.
• Maintained the visual outcomes of
the Mod “C” version.
Patent Pend.
PRESBIOPTICx
Modified “C”
PRESBIOPTICx
Micro Incision
IMT’s Slimming Diet
- IMPLANT STRATEGY •
•
•
Progressive addition of multifocality
with the customized option with the
second IOL implant.
First lens Implanted – If emmetropia &
near vision achieved the second lens is
identical or…
First lens implanted – If near vision is
not achieved the second lens can easily
correct the problem.
-MODIFIED “C”-
VS.
-MICRO INCISION-
• 35 Patients - 20F &15M Avg. 56yrs.
•17 patients - 8F & 9M Avg. 52yrs.
• Bilateral Progressive Multi-Focal
IOL implants with a non-linear
reading add from +3.6D to +4.5D
(Progressive) during surgery.
• Bilateral Progressive Multi-Focal
IOL implants with a non-linear
reading add from +3.6D to +4.0D
(Progressive) during surgery.
• PRESBIOPTICx C-LOOP by IMT.
• PRESBIOPTICx Micro by IMT
• Exclusion criteria included but not • Exclusion criteria included but not
limited to astigmatism >1D, dialimited to astigmatism >1D, diabetic retinopathy, maculopathy &
betic retinopathy, maculopathy &
previous ocular surgery.
previous ocular surgery.
-MODIFIED “C”-
VS.
• Total freedom from glasses 28
patients (>80%) w/ two similar
near addition implants.
• 5 patients received an extra
0.30D addition for the 2nd eye
• Total – 33 (95%) achieved J2
best uncorrected near visual
acuity with bilateral vision.
• 100% of the patients achieved
20/25 or better uncorrected
visual acuity for distance.
• 2 Patients (60-90days) complained
some temporary night vision
problems such as glare, halos
and sparkles (5,7%).
-MICRO INCISION-
•Total freedom from glasses 15
patients (>88%) w/ two similar
near addition implants.
• 2 patients received an extra
0.20D addition for the 2nd eye.
•Total – 17 (100%) achieved J2
best uncorrected near visual
acuity with bilateral vision.
•100% of the patients achieved
20/25 or better uncorrected
visual acuity for distance.
•2 Patients (30-60days) complained
some temporary night vision
problems such as glare, halos
and sparkles (11,7%).
D
20D 20,5D
21 D 21,5D
22D
23D 23,5D
24D
25D
RESULTS
MODIFIED “C”
MICRO INCISION
>2.75mm
CORNEAL TUNNEL
<2.2mm
Excellent
NEAR VISUAL ACUITY
Excellent
Excellent
DISTANT VISUAL ACUITY
Excellent
5.7% 75days
TEMPORARY HALOS & GLARE
11.7% 45 days
- CONCLUSION • The Micro-Incision version (HP60PM) of the IMT
HP60CM, “Progressive” Refractive Multifocal IOL
provides an excellent visual acuity for distance &
near and it can be customized in the 2nd eye to
achieve a full range of vision.
• Full range of vision can be achieved in 100% of
the cases .
• <2,2mm corneal tunnel can be successfully used
for this IOL due to a slimming diet from the original
Mod-C version IOL.
Thank You
2.75mm
Modified-C
1.9mm
Micro Incision