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Publication Metadata only Efficacy of Swept-source Optical Coherence Tomography in Axial Length Measurement for Advanced Cataract Patients(2020-03-01) Chareenun Chirapapaisan; Sabong Srivannaboon; Pratuangsri Chonpimai; Faculty of Medicine, Siriraj Hospital, Mahidol University(SS-OCT) allows better light penetration. Hence, a considerable number of cataract patients who failed AL measurement by TD-OCT can be recovered by SS-OCT. PURPOSE: The purposes of this study were to evaluate the efficacy of an SS-OCT for AL... measurement in advanced cataract patients and to identify characteristics of lens opacity that impede the AL measurement. METHODS: Advanced cataract patients who were unable to obtain AL measurement using a standard TD-OCT-based optical biometer (IOLMaster500Publication Metadata only Comparison of corneal astigmatism and axis location in cataract patients measured by total corneal power, automated keratometry, and simulated keratometry(2012-12-01) Sabong Srivannaboon; Soeharnila; Chareenun Chirapapaisan; Pratuangsri Chonpimai; Mahidol University; Faculty of Medicine, Siriraj Hospital, Mahidol University; Klinik Mata Nusantaraof astigmatism. Results: One hundred eyes of 100 cataract patients were randomly selected. There was no statistically significant difference in the mean steepest axis between TCP (93.31 ± 68.75 [SD]), automated keratometry (94.24 ± 64.78), and simulated... comparative study. Methods: Eyes with previous ocular surgery or abnormalities were excluded. All patients were examined with the ARK 730A autokeratometer and the Galilei analyzer. The steepest and flattest corneal power along with the steepest axis of the TCPPublication Metadata only Clinical comparison of a new swept-source optical coherence tomography-based optical biometer and a time-domain optical coherence tomography-based optical biometer(2015-10-01) Sabong Srivannaboon; Chareenun Chirapapaisan; Pratuangsri Chonpimai; Siriwan Loket; Mahidol University, Bangkok, Thailand. Design Prospective comparative study. Methods One hundred eyes from 100 cataract patients were enrolled in this study. Each patient was measured with 2 optical biometers, a newer swept-source optical biometer (IOLMaster 700) and a....00). The IOL powers obtained from both devices were not distinct. Because of the density of the cataracts, the AL in 5 eyes could be measured only by the swept-source biometer. Conclusions Repeatability and reproducibility of a swept-source optical biometerPublication Metadata only Comparison of corneal astigmatism measurements of 2 optical biometer models for toric intraocular lens selection(2015-01-01) Sabong Srivannaboon; Chareenun Chirapapaisan; Pratuangsri Chonpimai; Sunisa Koodkaew; Mahidol University. Setting Siriraj Hospital, Mahidol University, Bangkok, Thailand. Design Prospective comparative study. Methods Keratometry (K) readings were taken with the 2 biometers in eyes of cataract patients. The corneal astigmatism readings from the 2 devices were... the agreement between the sets of measurements. Results One hundred thirty-seven eyes (81 patients) were enrolled. The magnitude of astigmatism between the new biometer 2.4 mm zone and the standard biometer was similar (P =.19). There was a statisticallyPublication Metadata only Comparison of ocular biometry and intraocular lens power using a new biometer and a standard biometer(2014-01-01) Sabong Srivannaboon; Chareenun Chirapapaisan; Pratuangsri Chonpimai; Sunisa Koodkaew; Mahidol University, Bangkok, Thailand. Design Prospective comparative study. Methods Two independent operators measured eyes with cataract using both biometers. The keratometry values, axial length, anterior chamber depth, white-to-white (WTW) corneal diameter, and IOL power... and IOL power between the 2 devices was evaluated by the Bland-Altman method. Results The study recruited 137 eyes of 81 patients. The repeatability and reproducibility of both devices were high for all ocular biometry measurements (ICC, 0.87-1.00). ExceptPublication Metadata only Agreement of IOL power and axial length obtained by IOLMaster 500 vs IOLMaster 500 with Sonolink connection(2013-04-01) Sabong Srivannaboon; Chareenun Chirapapaisan; Patchara Nantasri; Mathinee Chongchareon; Pratuangsri Chonpimai; Mahidol Universityand IOLMaster 500 with sonolink connection. Methods: A prospective study of 60 eyes in 60 mild-to-moderate cataract patients was conducted under Institutional Ethics Committee approval. Keratometry (K) and axial length (AL) of all eyes were measured using...Background: The accurrate and expedient ocular biometry is essential for modern cataract surgery. IOLMaster 500, one of the most popular partial coherence interferometry (PCI) device, has been widely used. However, with the PCI device