Publications by authors named "Tjundewo Lawu"
Purpose: To investigate the difference between the segmented axial length (AL) and the composite AL on a swept-source optical coherence tomography biometer and to evaluate the subsequent effects on artificial intelligence intraocular lens (IOL) power calculations: the Kane and Hill-RBF 3.0 formulas compared with established vergence formulas.
Setting: National Hospital Organization, Tokyo Medical Center, Japan.
Purpose: To evaluate the performance of traditional vergence formulas with segmented axial length (AL) compared to traditional composite AL in extremely long eyes, and to determine whether the segmented AL can be extended to the new-generation formulas, including the Barrett Universal II, Emmetropia Verifying Optical 2.0 (EVO2), Hill-RBF 3.0 (Hill3), Kane, and Ladas Super formula (LSF) formulas in extremely long eyes.
View Article and Find Full Text PDFPreliminary demonstration of a novel intraocular lens power calculation: the O formula.
J Cataract Refract Surg
November 2022
Purpose: To evaluate the performance of a new formula of intraocular lens (IOL) power calculation (the O formula) based on ray tracing without commonly used parameters, including ultrasound-compatible axial length, keratometry readings, and A-constant.
Setting: Tokyo Medical Center, Tokyo, Japan.
Design: Retrospective consecutive case series.
Purpose: To compare the effect of decentration and tilt on the optical performance of 6 aspheric intraocular lens (IOL) designs in a model eye.
Setting: Department of Ophthalmology, Graduate School of Medicine, Dokkyo Medical University, Tochigi, Japan.
Design: Experimental study.
Article Synopsis
- Correcting spherical and chromatic aberrations in human eyes enhances visual clarity and contrast sensitivity significantly.
- Experiments using a model eye showed improvements in retinal images when longitudinal chromatic aberrations and spherical aberrations were corrected.
- The results demonstrated that correcting spherical aberrations provided greater contrast benefits compared to correcting chromatic aberrations, highlighting the advantages of using an aspheric achromatic intraocular lens (IOL).