The Haag-Streit Lenstar LS 900 Optical Biometer is purpose-built for optometrists seeking fast, accurate, and non-contact biometry for cataract and refractive surgery co-management. LS 900 diagnostic system captures axial length, keratometry, anterior chamber depth, lens thickness, central corneal thickness, and white-to-white distance—providing optometrists with all the data needed for confident IOL power calculations and efficient pre-operative planning in modern optometry clinics.