| Description | Smaller and tapered tip for creating a tunnel. | Circular knives have a 260° cutting edge for even incisions reducing post-op astigmatism. Also useful for trabeculotomy, DCR procedures, and vitreoretinal scleral dissection. Matte finish reduces glare from microscope light. | Crescent knives have a rounded tip for even incisions reducing post-op astigmatism. Also useful for trabeculotomy, DCR rocedues, and vitreoretinal scleral dissection. Matte finish reduces glare from microscope light, made from flat stock. | Crescent knives have a rounded tip for even incisions reducing post-op astigmatism. Also useful for trabeculotomy, DCR rocedues, and vitreoretinal scleral dissection. Matte finish reduces glare from microscope light, made from flat stock. | Rounded tip for even incisions reducing post-op astigmatism. |
| Dimension | 2.5mm, straight | 2.25mm, angled 60°, 6 mm from tip | 2.25mm angled 60°, bevel down | 1.75mm angled 60°, bevel up | 2.5mm, straight |