surgical scissors: used for cutting dressings, human epidermal tissues or soft tissues. Ophthalmic scissors: Ophthalmic scissors, also known as ophthalmic surgical scissors and ophthalmic surgical scissors, are instruments used to cut the soft tissues of the eyes. Ophthalmic ice shears are small. The tip of the tip is .4 mm wide, sharp but not sharp, and the tip of the round head is 1.6 mm wide. Under normal circumstances, the straight head is used to cut the superficial tissue, and the elbow is used to cut the deeper tissue or separate it. The tip can be used for fine cutting, modifying and piercing the soft tissue. Rough shears: bones and muscles