Intra-ocular Lens Master V4 versus LenStar LS900 in Intra-ocular Lens Power Calculation and Postoperative Refraction Prediction

Background: The non-contact optical methods are preferable in Intra-ocular Lens (IOL) power calculation as they have higher resolution, better patient tolerance and greater acceptability. Aim: to compare between LENSTAR LS900 IOL Master V4 calculation. Material Methods: This prospective comparative study included 60 eyes of 40 cataract patients. Patients with immature any age both genders were while those dense cataract, media opacities, previous ocular diseases or surgeries intraoperative complications excluded. assessed by a complete comprehensive ophthalmic evaluation. Each was evaluated twice, one the other LS900. Outcome measures axial length (AL), vertical keratometric dioptric (K1), horizontal (K2), measurements. Results: mean patients 67.08 ± 5.34 years. Thirty-five males 25 females. master similar (p>0.05) terms AL (24.82 2.21and 24.80 2.20), K1 (43.13 1.66 43.14 1.68), K2 (44.14 1.56 44.27 1.52) (16.86 5.24 16.84 5.26). target refraction on -0.01 0.06 compared 0.04 0.10 LenStar. actual 0.00 0.33. There non-significant differences refractions devices (p>0.05). Conclusion: Both biometers, provide similarly precise biometry