Hydrophilic Multifocal Intraocular Lens
Riyan MULTIFOLD / Riyan MULTYFOLD
At Riyan Meditech, we support the option to select multifocal iols in hydrophilic or hydrophobic materials made using two distinct technologies to suit each patient’s demands. To accommodate each patient’s needs, Riyan Meditech offers two distinct versions of multifocal Iols in hydrophilic and hydrophobic materials using two distinct technologies.
Why every multifocal IOL is not equal?
The principle of multifocal IOLs is to split light energy to achieve sharpness for distance and near vision. The number of rings, their height, and the interval between the diffractive zones play an important role in the light distribution (RNI). Depending on the amount of energy chosen between two foci, the patient can have a high contrast or low contrast image.
Riyan Multifocal’s advanced design with diffractive zones on the anterior surface and posterior aspheric surface with 360° square edge provides excellent visual performance under all light conditions.
These 3 images show the impact of the Riyan MULTIFOLD intraocular lens on the vision:
- Left image is the vision when the patient has a cataract.
- Middle image is the vision after surgery with Freedom Monofocal IOL.
- Right image is the vision after surgery with freedom Multifocal IOL. It gives the vision to far and near vision. So you can now use your smartphone without glasses!
Higher Visual comfort and Pupil Independency
Pupil dynamics decreases with age. Multifocal IOLs dependant on pupil has poor contrast sensitivity. Riyan Multifocal hydrophilic Iols with smart Apodization technology allows for balanced light distribution of 60% for distance vision and 40% at 5.5mm pupil aperture.
Specifications
- Contaflex 26% UV Hydrophilic Acrylic with refractive index 1.46 and 360° square edge.
- Diffractive-Refractive Apodized design for better energy distribution.
- 26 diffractive zone.
- +3,5 D additional power.
- Diopter Range from +5,00 D to +30,0 D Step.
Riyan MULTIFOLD
Diffractive-Refractive, 360° Square Edge with Aspheric Optic
| Model | RAR603SQ |
|---|---|
| Optic Design | Single Piece, Diffractive-Refractive, 3600 Square Edge with Aspheric Optic |
| Optic Size | 6.00mm |
| Over All length | 12.50mm |
| Estimated A-Constant | 118.00 |
| Recommended Optical A-Constant | A Constant SRK/T : 118.40 | A Constant SRK/II : 118.70 |
| Hoffer Q : 5.14 | Holladay 1 : 1.35 | Holladay 2 : 5.199 | Haigis : a0=0.912/a1=0.400/a2=0.100 | |
| Diopter Range | 5.00 D to 30.00 D (0.5 Diopter increments) |
| Near Addition | + 3.50D (Special order: +2.50D - 4.00D) |
| AC Depth | 5.00mm |
| Refractive Index | 1.46 |
| Water Content | 26% |
| Cartridge Size | RDC220_60DEG |
Riyan MULTYFOLD
Yellow Diffractive-Refractive, 360° Square Edge with Aspheric Optic
| Model | RAR603SQY |
|---|---|
| Optic Design | Single Piece, Diffractive-Refractive, 3600 Square Edge with Aspheric Optic |
| Optic Size | 6.00mm |
| Over All length | 12.50mm |
| Estimated A-Constant | 118.00 |
| Recommended Optical A-Constant | A Constant SRK/T : 118.40 | A Constant SRK/II : 118.70 |
| Hoffer Q : 5.14 | Holladay 1 : 1.35 | Holladay 2 : 5.199 | Haigis : a0=0.912/a1=0.400/a2=0.100 | |
| Diopter Range | 5.00 D to 30.00 D (0.5 Diopter increments) |
| Near Addition | + 3.50D (Special order: +2.50D - 4.00D) |
| AC Depth | 5.00mm |
| Refractive Index | 1.46 |
| Water Content | 26% |
| Cartridge Size | RDC220_60DEG |