| HNF — Scissors, Ophthalmic | Class 1 / OP |
| HNG — Rongeur, Lachrymal Sac | Class 1 / OP |
| HNH — Ring, Ophthalmic (Flieringa) | Class 1 / OP |
| HNI — Retractor, Ophthalmic | Class 1 / OP |
| HNJ — Punch, Corneo-Scleral | Class 1 / OP |
| HNK — Probe, Trabeculotomy | Class 1 / OP |
| HNL — Probe, Lachrymal | Class 1 / OP |
| HNM — Needle, Ophthalmic Suturing | Class 1 / OP |
| HNN — Knife, Ophthalmic | Class 1 / OP |
| HNO — Keratome, Ac-Powered | Class 1 / OP |
| HNP — Introducer, Sphere | Class 1 / OP |
| HNQ — Hook, Ophthalmic | Class 1 / OP |
| HNR — Forceps, Ophthalmic | Class 1 / OP |
| HNS — Expressor | Class 1 / OP |
| HNT — Erisophake | Class 1 / OP |
| HNW — Dilator, Lachrymal | Class 1 / OP |
| HNX — Depressor, Orbital | Class 1 / OP |
| HNY — Cystotome | Class 1 / OP |
| HNZ — Curette, Ophthalmic | Class 1 / OP |
| HOA — Compressor, Orbital | Class 1 / OP |
| HOB — Clamp, Muscle, Ophthalmic | Class 1 / OP |
| HOC — Clip, Iris Retractor | Class 1 / OP |
| HOD — Clamp, Eyelid, Ophthalmic | Class 1 / OP |
| HOE — Caliper, Ophthalmic | Class 1 / OP |
| HOF — Burr, Corneal, Manual | Class 1 / OP |
| HOG — Burr, Corneal, Battery-Powered | Class 1 / OP |
| HOH — Spectacle, Operating (Loupe), Ophthalmic | Class 1 / OP |
| HOI — Spectacle, Magnifying | Class 1 / OP |
| HOJ — Screen, Tangent, Target | Class 1 / OP |
| HOK — Screen, Tangent, Projection, Ac-Powered | Class 1 / OP |
| HOL — Screen, Tangent, Felt (Campimeter) | Class 1 / OP |
| HOM — Screen, Tangent, Ac-Powered (Campimeter) | Class 1 / OP |
| HON — Perimeter, Manual | Class 1 / OP |
| HOO — Perimeter, Ac-Powered | Class 1 / OP |
| HOP — Campimeter, Stereo, Battery-Powered | Class 1 / OP |
| HOQ — Grid, Amsler | Class 1 / OP |
| HOR — Simulatan (Including Crossed Cylinder) | Class 1 / OP |
| HOS — Projector, Ophthalmic | Class 1 / OP |
| HOT — Aid, Vision Image Intensification | Class 1 / OP |
| HOW — Drum, Opticokinetic | Class 1 / OP |
| HOX — Chart, Visual Acuity | Class 1 / OP |
| HOY — Shield, Eye, Ophthalmic (Including Sunlamp Protective Eyewear And Post-Mydriatic Eyewear) | Class 1 / OP |
| HOZ — Sponge, Ophthalmic | Class 2 / OP |
| HPA — Frame, Trial, Ophthalmic | Class 1 / OP |
| HPB — Clip, Lens, Trial, Ophthalmic | Class 1 / OP |
| HPC — Set, Lens, Trial, Ophthalmic | Class 1 / OP |
| HPD — Lens, Bagolini | Class 1 / OP |
| HPE — Aid, Vision, Optical, Battery-Powered | Class 1 / OP |
| HPF — Aid, Vision, Electronic, Ac-Powered | Class 1 / OP |
| HPG — Aid, Vision, Electronic, Battery-Powered | Class 1 / OP |