TORIC Intraocular Lens
Treat Astigmatism
Astigmatism is very common before and after cataract surgery. Almost 40% of people who are candidates for cataract surgery have at least 1.0 diopter (D) of astigmatism, which is enough to cause noticeably blurred vision without eyeglasses or visual aids.
he correction of ASTIGMATISM OF THE CORNEA is possible by the insertion of a TORIC IMPLANT that generates an astigmatism in opposite direction of the corneal one. It allows to neutralize the entire eye astigmatism. The Toric implant compensates astigmatism induced by corneal.
TORIC / TORYC / TORIC MULTIFOCAL / TORYC MULTIFOCAL / TORIC EDOF / TORYC EDOF / TRITORIC / TRITORYC
Why choose the Riyan TORIC IOLs?
The premium design of our TORIC Hydrophobic Lenses provides distance vision for ASTIGMATIC CATARACT PATIENTS who desire spectacle independence. Our TORIC IOL is available in 8 different models (in Clear and Yellow, Preloaded or non-preloaded)
- TORIC, Monofocal Toric with Clear Hydrophobic.
- TORYC, Monofocal Toric with Yellow Hydrophobic
- TORIC MULTIFOCAL, Multifocal Toric with Clear Hydrophobic.
- TORYC MULTIFOCAL, Multifocal Toric with Yellow Hydrophobic.
- TORIC EdoF, EdOf Toric with Clear Hydrophobic
- TORYC EdOf, EdoF Toric with Yellow Hydrophobic.
- TRITORIC, Trifocal Toric with Clear Hydrophobic.
- TRITORYC, Trifocal Toric with Yellow Hydrophobic
Our MULTIFOCAL TORIC Hydrophobic Lenses provides both NEAR and FAR vision for ASTIGMATIC CATARACT PATIENTS who desire spectacle independency. It combines the CYLINDER technology of a TORIC lens in the anterior side and the Diffractive-Refractive Element of a BIFOCAL lens in the posterior side.
Our EDOF TORIC Hydrophobic Lenses provides both NEAR, INTERMEDIATE and FAR vision for ASTIGMATIC CATARACT PATIENTS who desire spectacle independency. It combines the CYLINDER technology of a TORIC lens in the anterior side and the Diffractive-Refractive Element of a EdOf lens in the posterior side.
Our TRIFOCAL TORIC Hydrophobic Lenses provides both NEAR, INTERMEDIATE and FAR vision for ASTIGMATIC CATARACT PATIENTS who desire spectacle independency. It combines the CYLINDER technology of a TORIC lens in the anterior side and the Diffractive-Refractive Element of a TRIFOCAL lens in the posterior side.
We provides large DIOPTER range of astigmatism correction IOLs with custom-made PRECISION PERFECTION. Spherical power from 10.0D to 30.0D and cylinder power range is up to 12.0D with half diopter increments (monofocal lens only with a bi-toric premium technology).
| IOL Cylinder Power | Recommended Corneal Astigmatism Correction ranges |
| 1.50D | 0.75 – 1.5D |
| 2.25D | 1.50-2.00D |
| 3.00D | 2.00-2.50D |
| 3.75D | 2.50-3.00D |
| 4.50D | 3.00-3.50D |
| 5.25D | 3.50D-4.00D |
| 6.00D | 4.00D-4.50D |
| 6.75D (monofocal only with bi-toric optic) | 4.50D-5.00D |
| 7.50D (monofocal only with bi-toric optic) | 5.00D-5.50D |
| 8.25D (monofocal only with bi-toric optic) | 5.50D-6.00D |
| 9.00D (monofocal only with bi-toric optic) | 6.00D-6.50D |
| 9.75D (monofocal only with bi-toric optic) | 6.50D-7.00D |
| 10.50D (monofocal only with bi-toric optic) | 7.00D-7.50D |
| 11.25D (monofocal only with bi-toric optic) | 7.50D-8.00D |
| 12D (monofocal only with bi-toric optic) | 8.50D and above |
Toric Sucess Parameters
Patient with regular pre-operative astigmatism with an intact capsular bag, and no pre-existing ocular pathology who desire spectacle independency are good candidates for Toric surgery. Patient with keratoconus, or irregular astigmatism are recommended against Toric lens.
Toric IOL Power calculation:-
- SPHERICAL POWER – Is determined by using the preferred method such as optical biometry as for conventiol IOLs using personalized A-constant.
- CYLINDRICAL POWER- Steep K & Flat K values are determined through Keratometry and corneal topography for corneal measurements.
- With FREEDOM TORIC CALCULATOR, determine the appropriate Toric IOL model, power, & axis of placement using default SIA measurements: 0.5 D if your incision is 2.5 mm or smaller.
- Preoperative Marking :- Reference marks are made at 3, 6 and 9’o clock in upright position to limit cyclotorsional effect using marking tools such as level/bubble marker or free-hand marker.
- Intraoperative Marking :- Calculated steep axis is marked using fixation rings as Mendez at two positions (180° apart) with the guide of reference axis in supine position for alignment of Toric IOL.
- Primary/GROSS IOL Alignment :- After a standard cataract implantation in the capsular bag, manipulate the IOL into place within 15 to 20 degrees short of the intended axis. Remove all the residual viscoelastics gently with care.
- Final IOL alignment :- Rotate clockwise to align with intended axis on the cornea.
Hydrophobic Acrylic Posterior Chamber Toric Aspheric 360° Square Edge Single Piece Foldable Intraocular Lens
| Model | RAPC602SQ | RAPC602SQP |
|---|---|---|
| Optic Design | Equiconvex - 360° Square Edge with Toric Aspheric Optic | |
| Optic Size | 6.00mm | |
| Over All length | 13.00mm | |
| Estimated A-Constant | 118.40 | |
| Recommended Optical A-Constant | A Constant SRK/T : 119.20 | A Constant SRK/II : 119.50 | |
| Hoffer Q : 5.65 | Holladay 1 : 1.87 | Holladay 2 : 5.199 | Haigis : a0=1.441/a1=0.400/a2=0.100 | ||
| Diopter Range | 5.00 D to 30.00 D (0.5 Diopter increments) | |
| AC Depth | 5.00mm | |
| Refractive Index | 1.493 | |
| Cartridge Size | RDC220_60DEG | |
Yellow Hydrophobic Acrylic Posterior Chamber Toric Aspheric 360° Square Edge Single Piece Foldable Intraocular Lens
| Model | RAPC602SQY | RAPC602SQYP |
|---|---|---|
| Optic Design | Equiconvex - 360° Square Edge with Toric Aspheric Optic | |
| Optic Size | 6.00mm | |
| Over All length | 13.00mm | |
| Estimated A-Constant | 118.40 | |
| Recommended Optical A-Constant | A Constant SRK/T : 119.20 | A Constant SRK/II : 119.50 | |
| Hoffer Q : 5.65 | Holladay 1 : 1.87 | Holladay 2 : 5.199 | Haigis : a0=1.441/a1=0.400/a2=0.100 | ||
| Diopter Range | 5.00 D to 30.00 D (0.5 Diopter increments) | |
| AC Depth | 5.00mm | |
| Refractive Index | 1.493 | |
| Cartridge Size | RDC220_60DEG | |