- Business Domains
- About HOYA
- Sustainability
- Investor Relations
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| HOYA Vision Care Company (Eyeglass Lenses) | GLOBAL | Japanese |
| Contact lens store Eyecity | Japanese | |
| HOYA Vision Care Company (Contact Lenses) | GLOBAL | Japanese |
| PENTAX Medical (Flexible Endoscopes) | GLOBAL | Japanese |
| Wassenburg Medical (AER) | GLOBAL | |
| Microline Surgical (Laparoscope Surgical Instruments) | GLOBAL | |
| HOYA Surgical Optics (Intraocular Lenses) | GLOBAL | Japanese |
| HOYA Technosurgical (Hydroxyapatite/Metal Implant) | Japanese |
| Optics Division (Optical lenses, glass) | GLOBAL | Japanese |
| Optics Division (Laser Equipment, Colored Glass Filters) | GLOBAL | Japanese |