A contact lens reference, built for exploration
An ODspecs alternative for contact lens specifications
Looking for an alternative to ODspecs? CLSpecs brings manufacturer tables, individual lens records and exact parameter checks into one responsive contact lens library. Follow a specification back to its official U.S. manufacturer source.
Start with a manufacturer. See the details together.
Browse 41 selected U.S. lens records from Alcon, Bausch + Lomb, CooperVision and ACUVUE. Each manufacturer has its own table. Combine search with design, replacement and material filters, then sort the remaining lenses. The catalog is a selected reference, not a complete list of every product on the market.
Check whether the parameters are listed together.
A lens may list a sphere, cylinder and axis separately without offering that exact combination. CLSpecs checks all selected values against one complete combination within a documented lens variant. Manufacturer add labels stay distinct; a numeric ADD is not silently converted into Low, Mid or High.
Tools for the next question
Compare two or three lenses
Select lenses across manufacturers and compare their specifications side by side. Use “Differences only” to focus the table. Source notes and parameter restrictions remain part of the comparison; shared numbers do not establish clinical interchangeability.
Paste OD and OS values
Smart Rx paste maps labeled prescription values to each eye for review before applying filters. Parsing happens in the browser tab, and applied Rx values stay out of the page URL. Optional vertex conversion starts at 12 mm and lets you adjust the distance. Paste values only, without patient details.
Ask with sources
Ask CLSpecs supports catalog questions about lens facts, comparisons and exact combinations. Its catalog mode returns manufacturer source links and distinguishes a missing combination from incomplete evidence.
Use the library on a phone
Mobile filters and horizontally scrollable tables keep the catalog usable on smaller screens. Supported browsers offer dictation for search and questions. Review the transcript before submitting; your browser’s speech provider may process audio.
Questions about CLSpecs and ODspecs
Is CLSpecs part of ODspecs?
No. CLSpecs is an independent project and is not affiliated with or endorsed by ODspecs. If you intended to visit that site, you can open ODspecs directly.
Does CLSpecs contain the entire U.S. contact lens catalog?
No. It currently covers 41 selected records from four manufacturers. Coverage and source review dates appear in the records. Read how the catalog is assembled.
Can I find lenses for an exact prescription?
You can filter for source-listed parameter combinations and review the matching records. These results are a specification lookup, not a contact lens fitting or a recommendation to substitute one lens for another.
Where do the specifications come from?
The catalog cites official U.S. manufacturer product pages, reference guides and package inserts. Each record identifies its sources, review dates, supported fields and relevant restrictions. CLSpecs does not use ODspecs as its catalog data source.