| Stabilization: Precision Balance 8 | 4 design, a modified prism ballast with two anchor points, marked 8 at the lower left and 4 at the lower right of the lens face. |
|---|---|
| Geometry: Wide optic zone, with scribe marks at 3, 6 and 9 o'clock that allow lens observation at multiple angles. | |
| Study: Rotational stability in just 30 seconds, from a randomized, subject-masked clinical study at 11 sites with 83 subjects, and oscillation of 5 degrees or less with blink, from a randomized, subject-masked, multi-site clinical study with over 150 patients, both run with AIR OPTIX for Astigmatism lenses. | |
| Surface: SmartShield Technology, an ultra-thin protective layer that shields the lens from irritating deposits all month, holding median total cholesterol uptake to 0.4 µg/lens against 1.31 for Biofinity, 1.55 for PureVision, 2.8 for Acuvue Oasys, 3.96 for Avaira and 5.13 for Ultra. | |
| Wetting agent: HydraGlyde Moisture Matrix, a polyoxyethylene-polyoxybutylene copolymer (EO45BO10) held at 0.04%, 400 ppm, in the blister solution alongside 1% Copolymer 845. |
| Spectacle Add | Lens Selection |
|---|---|
| Up to +1.25D | LO OU |
| +1.50D to +2.00D | MED OU |
| +2.25D to +2.50D | HI OU |
| Spectacle Add | Dominant Eye | Non-Dominant Eye |
|---|---|---|
| Up to +1.25D | MED | MED |
| +1.50D to +2.00D | MED | HI |
| Spectacle Add | Dominant Eye | Non-Dominant Eye |
|---|---|---|
| +1.50D to +2.00D | LO | MED |
| +2.25D to +2.50D | HI | MED |



| Spectacle Add | Dominant Eye | Non-Dominant Eye |
|---|---|---|
| +0.75D to +1.25D | +1.50 D | +1.50 D |
| +1.50D to +1.75D | +1.50 D | +1.50 N |
| +2.00D to +2.25D | +2.00 D | +2.00 N |
| +2.50D or above | +2.50 D | +2.50 N |
| Complaint | Action |
|---|---|
| Poor distance | Add ±0.25D (up to ±0.50D) to the eye that needs improvement. |
| Poor near | Add ±0.25D (up to ±0.50D) to the eye that needs improvement. |

| Spectacle Add | Dominant Eye | Non-Dominant Eye |
|---|---|---|
| +0.75D to +1.25D | +1.00 D | +1.00 D |
| +1.50D to +1.75D | +1.50 D | +1.50 D |
| +2.00D | +2.00 D | +2.00 N |
| +2.50D or above | +2.50 D | +2.50 N |
| Spectacle Add | Both Eyes |
|---|---|
| +0.75D to +1.75D | LOW OU |
| +2.00D to +2.50D | HIGH OU |
| Spectacle Add | Dominant Eye | Non-Dominant Eye |
|---|---|---|
| +0.75D to +1.25D | +1.50 D | +1.50 D |
| +1.50D to +1.75D | +1.50 D | +1.50 N |
| +2.00D to +2.25D | +2.00 D | +2.00 N |
| +2.50D or above | +2.50 D | +2.50 N |
| Complaint | Action |
|---|---|
| Poor distance | Add ±0.25D (up to ±0.50D) to the eye that needs improvement. |
| Poor near | Add ±0.25D (up to ±0.50D) to the eye that needs improvement. |
| Spectacle Add | Dominant Eye | Non-Dominant Eye |
|---|---|---|
| +0.75D to +1.25D | +1.50 D | +1.50 D |
| +1.50D to +1.75D | +1.50 D | +1.50 N |
| +2.00D to +2.25D | +2.00 D | +2.00 N |
| +2.50D to +2.75D | +2.50 D | +2.50 N |
| +3.00D to +3.25D | +3.00 D | +3.00 N |
| +3.50D to +3.75D | +3.50 D | +3.50 N |
| +4.00D to +4.25D | +4.00 D | +4.00 N |
| Complaint | Action |
|---|---|
| Poor distance | Add ±0.25D (up to ±0.50D) to the eye that needs improvement. |
| Poor near | Add ±0.25D (up to ±0.50D) to the eye that needs improvement. |
| Spectacle Add | Dominant Eye | Non-Dominant Eye |
|---|---|---|
| +0.75D to +1.25D | +1.50 D | +1.50 D |
| +1.50D to +1.75D | +1.50 D | +1.50 N |
| +2.00D to +2.25D | +2.00 D | +2.00 N |
| +2.50D to +2.75D | +2.50 D | +2.50 N |
| +3.00D to +3.25D | +3.00 D | +3.00 N |
| +3.50D to +3.75D | +3.50 D | +3.50 N |
| +4.00D to +4.25D | +4.00 D | +4.00 N |
| Complaint | Action |
|---|---|
| Poor distance | Add ±0.25D (up to ±0.50D) to the eye that needs improvement. |
| Poor near | Add ±0.25D (up to ±0.50D) to the eye that needs improvement. |
| Spectacle Add | Lens Selection |
|---|---|
| Up to +1.25D | LOW OU |
| +1.50D to +1.75D | HIGH OU with -0.25D/-0.50D over the distance power |
| +2.00D or above | HIGH OU |
| Spectacle Add | Lens Selection |
|---|---|
| +0.75D to +1.50D | LOW OU |
| +1.75D to +2.50D | HIGH OU |
| Condition | Action |
|---|---|
| Wearing two LOW | Replace Non-Dom with HIGH. If still poor, add +0.25D to Non-Dom. |
| Wearing two HIGH | Add +0.25D to Non-Dom. |
| Condition | Action |
|---|---|
| Wearing two LOW | Replace Dom with single vision lens. |
| Wearing two HIGH | Replace Dom with LOW. |
| Stabilization: PRECISION BALANCE 8 | 4 design, stabilized at the 8 and 4 o'clock points to reduce lower lid interaction, with a single 6 o'clock scribe mark. |
|---|---|
| Study: In a clinical trial where n=69, the lens settled within 3 degrees of ideal orientation, took an average of 60 seconds to settle, oscillated less than 3 degrees with blink, and gave 95% first-lens fit success judged on lens movement, centration and rotation at initial fitting. | |
| Material: Water gradient construction, water content rising from the core outward to a surface that approaches 100% water. | |
| Surface: CELLIGENT Technology, which includes a bioinspired 2-methacryloyloxyethyl phosphorylcholine polymer surface, helps resist the adherence of bacteria and lipids, based on in vitro studies of unworn lenses. | |
| Note: A blue-violet light filter reduces 34% of light below 450 nm, a reduction with no demonstrated clinical benefit. |
| Spectacle Add | Lens Selection |
|---|---|
| Up to +1.25D | LO OU |
| +1.50D to +2.00D | MED OU |
| +2.25D to +2.50D | HI OU |
| Spectacle Add | Dominant Eye | Non-Dominant Eye |
|---|---|---|
| Up to +1.25D | LO | LO + additional +0.50D |
| +1.50D to +2.00D | MED | MED + additional +0.50D |
| +2.25D to +2.50D | HI | HI + additional +0.50D |
| Spectacle Add | Dominant Eye | Non-Dominant Eye |
|---|---|---|
| Up to +1.25D | MED | MED |
| +1.50D to +2.00D | MED | HI |
| +2.25D to +2.50D | HI | HI |
| Spectacle Add | Dominant Eye | Non-Dominant Eye |
|---|---|---|
| +1.50D to +2.00D | LO | MED |
| +2.25D to +2.50D | LO | HI |
| Spectacle Add | Lens Selection |
|---|---|
| Up to +1.25D | LO OU |
| +1.50D to +2.00D | MED OU |
| +2.25D to +2.50D | HI OU |
| Spectacle Add | Dominant Eye | Non-Dominant Eye |
|---|---|---|
| Up to +1.25D | LO | LO + additional +0.50D |
| +1.50D to +2.00D | MED | MED + additional +0.50D |
| +2.25D to +2.50D | HI | HI + additional +0.50D |
| Spectacle Add | Dominant Eye | Non-Dominant Eye |
|---|---|---|
| Up to +1.25D | MED | MED |
| +1.50D to +2.00D | MED | HI |
| +2.25D to +2.50D | HI | HI |
| Spectacle Add | Dominant Eye | Non-Dominant Eye |
|---|---|---|
| +1.50D to +2.00D | LO | MED |
| +2.25D to +2.50D | LO | HI |
| Spectacle Add | Lens Selection |
|---|---|
| +0.75D to +1.50D | LOW OU |
| +1.75D to +2.50D | HIGH OU |
| Condition | Action |
|---|---|
| Wearing two LOW | Replace Non-Dom with HIGH. If still poor, add +0.25D to Non-Dom. |
| Wearing two HIGH | Add +0.25D to Non-Dom. |
| Condition | Action |
|---|---|
| Wearing two LOW | Replace Dom with single vision lens. |
| Wearing two HIGH | Replace Dom with LOW. |
| Spectacle Add | Lens Selection |
|---|---|
| +0.75D to +1.50D | LOW OU |
| +1.75D to +2.50D | HIGH OU |
| Condition | Action |
|---|---|
| Wearing two LOW | Replace Non-Dom with HIGH. If still poor, add +0.25D to Non-Dom. |
| Wearing two HIGH | Add +0.25D to Non-Dom. |
| Condition | Action |
|---|---|
| Wearing two LOW | Replace Dom with single vision lens. |
| Wearing two HIGH | Replace Dom with LOW. |


