Measurement of Axial Length, Anterior Chamber Depth & Corneal Curvature

AL550 provides accurate measurements such as axis length, anterior chamber depth and corneal curvature, which are crucial for the precise prediction of IOL power.

IOL Calculation

AL550 integrates multiple IOL calculation formulas, including Pearl-DGS, Jin, SRK-T, Holladay 1, Hoffer Q and Haigis, enabling rapid calculation of IOL power for cataract patients. Moreover, a study found the Pearl-DGS and Jin formulas demonstrate prediction accuracy similar to that of the Barrett Universal II.

AL550 provides the maps of anterior corneal sagittal curvature and elevation, and a variety of keratoconus indices, enabling eye-care professionals to intuitively and quickly understand the patient's corneal morphology and assisting in the early screening of diseases such as keratoconus and marginal corneal degeneration.

AL550 provides Zernike wavefront aberration data of the corneal anterior surface with up to 8th order and a maximum diameter of 12mm. Meanwhile, it can also simulate the visual quality image through more intuitive ways such as Retina Imaging, Point Spread Function (PSF, including Strehl ratio), and Modulation Transfer Function (MTF), helping improve the efficiency of eye-care professional-to-patient communication.

Trend Curve of AL, Myopia & High Myopia Probability in the European Population

Trend Curve of AL & Myopia Probability in the Asian Population

Trend Curve of AL/CR & Myopia Probability in the Asian Population

Axial Length Variation over Time

AL550 provides the trend curves of axial length, axial length/corneal radius ratio, axial length variation over time, and myopia & high myopia probability in the European and Asian population, and allows eye-care professionals to record myopia interventions so as to provide important evidence for monitoring myopia progression in children and adolescents, evaluating the effectiveness of current myopia interventions and predicting future myopia and high myopia risk.

Selection of Orthokeratology Trial Lens

Orthokeratology Lens Simulated Fitting

Evaluation of Orthokeratology Lens Wearing Effect

AL550 provides comprehensive orthokeratology lens fitting parameters (including flat K, steep K, astigmatism, flat eccentricity, steep eccentricity, and corneal sagittal height difference) for trial lens selection. It also offers the lens simulated fitting function to improve fitting efficiency and reduce patient discomfort, while generating tangential curvature difference map before and after lens wearing for effect evaluation.