Artis Bifocal
Bifocal lenses are eyeglass lenses designed to meet the needs of individuals who have difficulty seeing clearly at both near and far distances. Typically, the lower portion is used for near vision, while the upper portion is for distance vision. The distinguishing feature of bifocal lenses is that they have two different focal points on the lens. They are commonly used to assist individuals with presbyopia (a near vision problem) that typically develops with age.
| DESIGNATION | TECHNICAL SPECIFICATIONS |
|---|---|
| Lens type | For implantation in the capsular bag |
| Optic diameter | 6.00 mm (from +10.0D to +25.0D) 5.80 mm (from +25.5D to +35.0D) |
| Overall diameter | 10.79 mm (from +10.0D to +25.0D) 10.50 mm (from +25.5D to +35.0D) |
| Design | One piece square edge on 360° |
| Optic design | Bifocal Aspherical with negative spherical aberration to partly correct corneal spherical aberration Diffractive pattern on the anterior face, biconvex |
| Angulation | 5° |
| Material | Hydrophobic CBK 1.8 from Cristalens |
| Dioptric powers (spherical equivalent) | From +10.0D to +35.0D by 0.5D |
| Addition(at IOL plane) | +2.50D / + 3.00D |
| Estimated A-Constant (SRK-T) | 119.3 Ultrasound biometry 119.7 Interference laser biometry |
| Suggested anterior chamber depth (ACD) | 5.77 mm Ultrasound biometry 6.03 mm Interference laser biometry |
| Refractive index | 1.54 |
| Injection system | Preloaded system |
| Sterilization | Ethylene oxide |
| Recommended incision size | 2.0 mm |
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