K042242 is an FDA 510(k) clearance for the ALDEN HP (HIOXIFILCON B) SPHERE & TORIC SOFT CONTACT LENSES. Classified as Lenses, Soft Contact, Daily Wear (product code LPL), Class II - Special Controls.
Submitted by Alden Optical Labs., Inc. (Alden, US). The FDA issued a Cleared decision on September 15, 2004 after a review of 27 days - a notably fast clearance cycle.
This device falls under the Ophthalmic FDA review panel, regulated under 21 CFR 886.5925 - the FDA ophthalmic device framework. As a Special 510(k), this submission covers a manufacturer modification to an existing cleared device rather than a new device introduction.
Device pattern: Iterative device modification. Low regulatory complexity profile. This Special 510(k) clearance confirms that the manufacturer's modifications remained within the established regulatory envelope of the original cleared device.