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Assessing the validity of measurements of swept-source and partial coherence interferometry devices in cataract patients / Reza Ghaffari in OVS : Optometry & Vision Science, vol. 96, 10 (Octobre 2019)
[article]
in OVS : Optometry & Vision Science > vol. 96, 10 (Octobre 2019)
Titre : Assessing the validity of measurements of swept-source and partial coherence interferometry devices in cataract patients Type de document : article de périodique Auteurs : Reza Ghaffari ; Raziyeh Mahmoudzadeh ; S.Saeed Mohammadi ; Mirataollah Salabati ; Golshan Latifi ; Hamed Ghassemi Année de publication : 2019 Langues : Français (fre) Descripteurs (mots clés) : [Thésaurus Mesh]Cataracte
[Thésaurus Mesh]Études d'évaluation comme sujet
[Thésaurus Mesh]Tomographie par cohérence optique
[Thésaurus HELB]:Optique:biometre
[Thésaurus HELB]:Optique:biometrie optiqueMots-clés : validité des mesures Résumé : SIGNIFICANCE: The validity of measurements of OA-2000 (Tomey, Nagoya, Japan), a new swept-source optical coherence tomography–based biometer, was evaluated in comparison with IOLMaster 500 (Carl Zeiss Meditec AG, Jena, Germany) as a reference method for optical biometry in cataract patients. PURPOSE: This article compares the validity of measurements between OA-2000 and IOLMaster 500. METHODS: In this cross-sectional study, axial length, lens thickness, anterior chamber depth, and keratometry readings were obtained by the OA-2000 and IOLMaster 500. Two measurements were taken by each method. Patients in which any one of the biometry methods could not be performed owing to severity of the cataract were excluded from the study. Repeatability of measurements was presented by coefficient of variation, and Bland-Altman method was used for evaluating the agreement between the two biometers. RESULTS: Fifty-eight eyes of 58 cataract patients with mean ± standard deviation age of 61.4 ± 8.3 years were included in this study. Intraclass correlation ranged from 0.898 to 0.901 and showed good to excellent reliability. It was good for keratometry 1 (0.898) and excellent for keratometry 2 (0.992), axial length (0.999), and anterior chamber depth (0.901). Bland-Altman analysis showed good agreement between the swept-source optical coherence tomography and partial coherence interferometry devices for axial length, anterior chamber depth, and mean keratometry, with narrow 95% limits of agreement (−0.09 to 0.1mm, −0.33 to 0.54mm, −0.97 to 1.03 D, respectively), and also indicated small mean difference (0.01 for axial length, 0.11 for anterior chamber depth, 0.03 for mean keratometry, respectively) for all comparisons. CONCLUSIONS: OA-2000 as a new swept-source optical coherence tomography has an excellent repeatability for measurement of biometric data in cataract patients, comparing with the standard partial coherence interferometry biometer (IOLMaster 500). Permalink : https://bibliotheque.helb-prigogine.be/opac_css/index.php?lvl=notice_display&id= [article]Exemplaires
Cote Support Localisation Section Disponibilité aucun exemplaire The Effect of Cyclopentolate on Ocular Biometric Components / Hassan Hashemi in OVS : Optometry & Vision Science, vol. 97, 06 (Juin 2020)
[article]
in OVS : Optometry & Vision Science > vol. 97, 06 (Juin 2020) . - p. 440-447
Titre : The Effect of Cyclopentolate on Ocular Biometric Components Type de document : article de périodique Auteurs : Hassan Hashemi ; Amir Asharlous ; Mehdi Khabazkhoob ; Rafael Iribarren ; Ahmad Khosravi ; Abbasali Yekta ; Mohammad Hassan Emamian ; Akbar Fotouhi Année de publication : 2020 Article en page(s) : p. 440-447 Langues : Français (fre) Descripteurs (mots clés) : [Thésaurus Mesh]Cyclopentolate
[Thésaurus Mesh]Enfant
[Thésaurus Mesh]Études transversales
[Thésaurus Mesh]Évaluation de médicament
[Thésaurus Mesh]Solutions ophtalmiques
[Thésaurus Mesh]Troubles de la réfraction oculaire
[Thésaurus HELB]:Optique:biometrie optiqueRésumé : SIGNIFICANCE: It is apparent that a variety of biometric changes are caused by different types of cycloplegic eye drops. However, these effects are inconsistent and have not been reported in different refractive groups. PURPOSE: The purpose of this study was to determine the effect of cyclopentolate 1% on ocular biometric components in different types of refractive errors in children. METHODS: This cross-sectional study was conducted on 226 eyes of 113 schoolchildren in Shahroud, northeast Iran, with a mean ± standard deviation age of 9.20 ± 1.65 years. All participants had noncycloplegic and cycloplegic objective refraction using an autorefractometer. Cycloplegia was induced using cyclopentolate 1% eye drops. Biometric measurements were made with Allegro Biograph (WaveLight AG, Erlangen, Germany) before and after administering cycloplegic drops. Mixed-effect model regression was used to analyze the data. RESULTS: After cycloplegia, the vitreous chamber depth (VCD) (−0.043; 95% confidence interval [CI], −0.067 to −0.019 mm), lens thickness (−0.146; 95% CI, −0.175 to −0.117 mm), axial length (−0.009; 95% CI, −0.012 to −0.006 mm), and lens power (−0.335; 95% CI, −0.463 to −0.208 D) decreased significantly, whereas the anterior chamber depth (ACD) (0.183; 95% CI, 0.164 to 0.202 mm), anterior segment length (0.036; 95% CI, 0.014 to 0.058) mm), lens central point (0.109; 95% CI, 0.094 to 0.124 mm), and pupil diameter (1.599; 95% CI, 1.482 to 1.716 mm) increased (P value for all tests, Permalink : https://bibliotheque.helb-prigogine.be/opac_css/index.php?lvl=notice_display&id= [article]Exemplaires
Cote Support Localisation Section Disponibilité aucun exemplaire