A rigid-gas-permeable ophthalmic lens intended to be worn directly against the cornea of the eye for orthokeratology (Ortho-K), a procedure where the lens is worn for several hours, typically each night, to modify the curvature of the cornea as an alternative
| Company | Devices | Share |
|---|---|---|
| Euclid Vision Corporation | 50 | 85% |
| Paragon Vision Sciences, Inc. | 6 | 10% |
| Menicon Co.,Ltd. | 3 | 5% |
Company = labeler of record on GUDID. 3 companies in total; top 12 shown. Click headers to sort.
Sample of brand names as labelled; no endorsement. Ask us for the full list with company, model and UDI.
| Code | Name | Devices |
|---|---|---|
| NUU | Lens, Contact, Orthokeratology, Overnight | 69 |
| HQD | Lens, Contact (Other Material) - Daily | 2 |
| MUW | Lens, Contact (Orthokeratology) | 2 |
| MWL | Lens,Contact(Rigid Gas Permeable)-Extended Wear | 2 |
| MWL | Lens, Contact (Rigid Gas Permeable), Extended Wear | 1 |
Use these as the dimensions to specify in a tender line.
No closely related category with 50+ devices.
59 device records in commercial distribution are listed on the FDA Global Unique Device Identification Database (GUDID) under the GMDN category "Orthokeratology contact lens", from 3 companies. The largest labeler is Euclid Vision Corporation with 85% of records.
NUU (Lens, Contact, Orthokeratology, Overnight), HQD (Lens, Contact (Other Material) - Daily), MUW (Lens, Contact (Orthokeratology)), MWL (Lens,Contact(Rigid Gas Permeable)-Extended Wear)
No. GUDID is the US register. For the UAE (MOHAP/DoH) and Saudi (SFDA/MDMA) a separate registration and a local authorised representative are required; Consulting Wallah can check the status and connect you with registered suppliers.
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Source: FDA AccessGUDID (AccessGUDID full release 2 Nov 2026); counts are device records in commercial distribution grouped by GMDN preferred term; companies are labelers of record. Information only — US listing is not a registration in the UAE or GCC; verify with the regulator. © Consulting Wallah — CC BY‑NC‑ND.