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What Is Senofilcon C and How Is It Different from Senofilcon A in Other Acuvue Lenses?
Acuvue Vita uses Senofilcon C — a silicone hydrogel material developed specifically for the monthly contact lens format, distinct from the Senofilcon A used in Acuvue Oasys bi-weekly and 1-Day lenses.
The Senofilcon Family
Johnson & Johnson has developed several Senofilcon variants, each optimized for a specific lens format:
- • Senofilcon A — used in Acuvue Oasys bi-weekly (Dk/t 103) and Acuvue Oasys 1-Day (Dk/t 121/147 depending on variant)
- • Senofilcon C — used in Acuvue Vita monthly (Dk/t 147) and Acuvue Vita for Astigmatism
How Senofilcon C Differs from Senofilcon A
| Specification | Senofilcon C (Acuvue Vita) | Senofilcon A (Acuvue Oasys bi-wk) |
|---|---|---|
| Dk/t | 147 | 103 |
| Water Content | 41% | 38% |
| Moisture Tech | HydraMax® Technology | HYDRACLEAR® PLUS |
| Format | Monthly (30 days) | Bi-weekly (14 days) |
| Optimized for | 30-day cycling demands | 14-day cycling demands |
Why a Distinct Material for Monthly Wear?
A monthly lens must maintain optical quality, dimensional stability, moisture performance, and biocompatibility across 30 days of daily wear, nightly cleaning, and repeated rehydration cycles. Johnson & Johnson developed Senofilcon C with these demands in mind — specifically engineering the material's properties for extended wear and cleaning cycles that distinguish monthly from bi-weekly or daily wear.
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