Optical Biometer is a non-contact ophthalmic diagnostic device used to accurately measure the eye’s anatomical parameters, including axial length, corneal curvature, anterior chamber depth, and lens thickness. It plays a vital role in preoperative assessment for cataract and refractive surgeries by enabling precise intraocular lens (IOL) power calculations. Widely used in hospitals, eye clinics, and ophthalmic surgical centers, optical biometers deliver fast, reliable, and highly accurate measurements, improving surgical planning, enhancing clinical efficiency, and supporting optimal visual outcomes for patients.