![](https://seed-singapore.com/wp-content/uploads/2016/05/logo_1daypure_astigmatism.jpg)
SEED 1dayPure moisture has been well-received for its good quality as well as its natural moisturizing agent and 2 extra pieces of lenses since its launch in the market. We are proud to present to you SEED 1dayPure moisture for Astigmatism. By expanding the category of our "Pure Series" lenses, we hope to benefit our contact lens wearers with more choices.
![](/wp-content/uploads/2016/05/product_1daypure_astigmatism.jpg)
FEATURES
Are you suffering from Astigmatism?
- Text on the computer monitor or newspaper is blurred
- Numbers on the clock are blurred
- Image becomes blurred when dark
- It is hard to differentiate number and text
![](/wp-content/uploads/2016/05/are_you_suffering_01.jpg)
ZWITTERIONIC MATERIAL "SIB"
Zwitterionic material, "SIB" is an original hybrid material of SEED. It has the advantages of both non ionic low water content lenses, which are highly resistant to deposits and stable to the environment, and high water content lenses, which allows for a high level of oxygen permeability.
LENS DESIGN
SEED's unique "Dynamic Prism Ballast" design constitutes three designs, namely, the "Upper Portion Slab-off", Prism Ballast Design and "Adjustable Parametric Design".
![lens-design-03](https://seedasiacontactlens.com.sg/wp-content/uploads/2019/04/lens-design-03.jpg)
* Alginic Acid: Natural moisturising ingredient extracted from seaweed and kelp.
GOOD DEPOSIT RESISTANCE
Good Deposit Resistance
Although zwitterionic material "SIB" is ionic and has high water content, it has the advantage of keeping away the proteins, which cause deposits.
Schematic Diagram of Deposits Resistance
![](/wp-content/uploads/2016/05/conventional_ionic_lens_01.jpg)
Conventional ionic lens
The negative ions in the material strongly repel each other, hence making the lens surface negatively charged. Therefore, it attracts the positively charged deposits, e.g. proteins.
![](/wp-content/uploads/2016/05/conventional_ionic_lens_02.jpg)
Zwitterionic material "SIB"
There are equimolar amounts of positive and negative ions in the material. Thus, there is no deviation of charge on the lens surface. Therefore, it doesn’t attract positively charged deposits e.g. proteins.
CONTAINING UV ABSORBER"
SEED 1dayPure moisture for Astigmatism contains UV absorber.
HIGH MOISTURE RETENTION
Schematic Diagram of Deposits Resistance
![](/wp-content/uploads/2019/04/non-ionic-surfactant.jpg)
Surface acting agent attracts moisture and prevents adhesion of deposits.
![](/wp-content/uploads/2019/04/alginic-acid.jpg)
Natural moisturising ingredient extracted from seaweed and kelp. It attracts moisture and keeps tears in the lens surface at the same time.
PRODUCT SPECIFICATION
Modality | Daily disposable contact lens |
---|---|
FDA Group | Group IV |
Lens Material | 2-HEMA, cationic and anionic monomer, MMA, EGDMA |
Lens Color | Blue |
UV Absorption | Benzotriazole |
Water Content | 58% |
Refractive Index | 1.406 |
Luminous Transmittance | 98% |
Oxygen Permeability | 30.0×10-11(cm2/sec) ● (mLO2/(mL×mmHg)) |
Oxygen Transmittance | 27.3×10-9(cm2/sec) ● (mLO2/(mL×mmHg)) (S-3.00D/C-1.25D) |
Base Curve | 8.80mm |
Diameter | 14.2mm |
Center Thickness | 0.11mm (S-3.00D/C-1.25D) |
Lens Marking | Printed as "PA" |
Spherical Power | +2.00 ~ +0.25D (0.25D step) ※ (Not Available in 10°, 70°, 80°, 100°, 110° and 170° Axis) ±0.00D -0.25D ~ -6.00D (0.25D step) -6.50D ~ -10.00D (0.50D step) |
Cylindrical Power | -0.75D, -1.25D, -1.75D -2.25D ※ Available in 180° |
Axis | 10°, 20°, 70°, 80°, 90°, 100°, 110°, 160°, 170°, 180° |
Volume Per Box | 32 lenses |