A Novel Approach for Suprachoroidal Space Injection: An Experimental Evaluation

The 22 G needle demonstrated sufficient rigidity and stability to ensure proper scleral compression, supporting the consistency of the injection depth. The 30 G needle exhibited exceptional sharpness and precision, allowing for more accurate control of the drug dosage. The appropriate force applied to the sclera facilitated the precise depth of injection. The angle of the needle, parallel to the corneal limbus, helped avoid penetration into the vitreous or subretinal space, reducing the risk of complications. This device offers new tools and methods for ophthalmic research and clinical practice, with significant clinical application prospects.