| Origin | Mainland China |
| Brand | Unbranded |
| Type | Prism Set |
| Unit Type | Unit |
| Model | LS-22 |
| Intended Use/Discipline | Ophthalmology |
Total: 23 pieces including one red filter lens. Diopter(Δ): 0.5, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 16, 18, 20, 25, 30, 35, 40, 45, 50.