4 documents found, page 1 of 1
Prevalence of anisometropia and its associated factors in school-age children
Hashemi, Hassan; Khabazkhoob, Mehdi; Lança, Carla; Emamian, Mohammad Hassan; Fotouhi, AkbarPurpose: To determine the prevalence of anisometropia and the associated demographic and biometric risk factors in children. Methods: This cross-sectional study was conducted on the elementary school children of Shahroud, east of Iran, in 2015. All rural students were recruited, while multistage cluster sampling was used to select the students in urban areas. All children underwent optometric examinations inclu...
Longitudinal changes in crystalline lens thickness and power in children aged 6...
Hashemi, Hassan; Khabazkhoob, Mehdi; Azizi, Elham; Iribarren, Rafael; Lança, Carla; Grzybowski, Andrzej; Rozema, Jos J.; Emamian, Mohammad HassanObjectives: To determine the three-year changes in crystalline lens power (LP) and thickness (LT) in children and their associated factors. Methods: Schoolchildren aged 6-12 years living in Shahroud, northeast Iran were examined in 2015 and 2018. The Bennett formula was used to calculate LP. Multiple generalized estimating equations (GEE) analysis was used for data analysis. Results: Among the 8089 examined eye...
Optimized Artificial Intelligence for Enhanced Ectasia Detection Using Scheimpf...
Ambrósio, Renato; Machado, Aydano P.; Leão, Edileuza; Lyra, João Marcelo G.; Salomão, Marcella Q.; Esporcatte, Louise G. PellegrinoPurpose: To optimize artificial intelligence (AI) algorithms to integrate Scheimpflug-based corneal tomography and biomechanics to enhance ectasia detection. Design: Multicenter cross-sectional case-control retrospective study. Methods: A total of 3886 unoperated eyes from 3412 patients had Pentacam and Corvis ST (Oculus Optikgeräte GmbH) examinations. The database included 1 eye randomly selected from 1680 nor...
Three-year change in refractive error and its risk factors: results from the Sh...
Lança, Carla; Emamian, Mohammad Hassan; Wong, Yee Ling; Hashemi, Hassan; Khabazkhoob, Mehdi; Grzybowski, Andrzej; Saw, Seang Mei; Fotouhi, AkbarObjectives: To determine spherical equivalent (SE) progression among children in the Shahroud School Children's Eye Cohort Study. Methods: A prospective cohort study recruited children aged 6 to 12 years in 2015 (baseline) with a follow-up in 2018. Cycloplegic autorefraction and axial length (AL) measurements were included. SE progression over 3 years was analysed in non-myopic (SE ≥ + 0.76 D), pre-myopic (PM; ...