Results 11 to 20 of about 503,581 (280)

Prevalence of refractive errors in children of Puerto Rico [PDF]

International Journal of Ophthalmology, 2023
AIM: To determine the prevalence of refractive error in 5- to 17-year-old schoolchildren in Puerto Rico. METHODS: A quantitative descriptive study of 2867 children aged 5 to 17y from all seven educational regions of Puerto Rico was conducted from 2016 ...
Héctor C. Santiago, Mayra Rullán, Katerin Ortiz, Andrés Rivera, Mónica Nieves, José Piña, Zulmaris Torres, Yvette Mercado   +7 more
doaj   +1 more source

Refractive outcomes of table-mounted and hand-held auto-refractometers in children: an observational cross-sectional study

BMC Ophthalmology, 2021
Background To compare the refractive results of hand-held and table-mounted autorefractors. Methods We designed this study as an observational, cross-sectional study.
Müjdat Karabulut, Sinem Karabulut, Aylin Karalezli   +2 more
doaj   +1 more source

Virtual reality training improves accommodative facility and accommodative range [PDF]

International Journal of Ophthalmology, 2022
AIM: To evaluate the effects of virtual reality (VR) training on different parameters of vision. METHODS: Sixty individuals ranged 18-60 years old with asthenopia were randomly divided into short-term (n=40) and long-term (n=20) treatment groups.
Dong-Yu Guo, Yuan-Yuan Shen, Miao-Miao Zhu, Yang-Yang Zhan, Xia-Wei Wang, Jian-Hua Xia, Bo Jiang, Yang-Shun Gu, Yan Long   +8 more
doaj   +1 more source

Influence of outdoor time on the spherical equivalent and axial length in childhood myopia: A meta‐analysis [PDF]

Acta Ophthalmologica
Clara Martinez-Perez, Miguel Angel Sanchez-Tena, José-María Sánchez-González   +2 more
exaly   +2 more sources

Clinical application of bicylindric intraocular lens power calculation method

Indian Journal of Ophthalmology, 2020
Purpose: To analyze the reliability of the refractive results prediction obtained in intraocular lens (IOL) calculation using bicylindric power calculation method, with the use of steep and flat keratometry readings compared with the classical mean ...
Jorge A Calvo-Sanz, Cristina Bonnin-Arias, Alfonso Arias-Puente   +2 more
doaj   +1 more source

Stabilization of refraction and timing of spectacle prescription following manual small-incision cataract surgery

Indian Journal of Ophthalmology, 2022
Purpose: To determine the stabilization of refraction at 2 weeks following MSICS by comparing the difference in spherical, cylindrical component and also spherical equivalent of refraction of 2 weeks follow-up with that of 6 weeks following surgery ...
Sabyasachi Pattanayak, S Hari Sankar Patra, Ashok Kumar Nanda, Praveen Subudhi   +3 more
doaj   +1 more source

Association between refractive errors and ocular biometry in Iranian adults

Journal of Ophthalmic & Vision Research, 2015
Purpose: To investigate the association between ocular biometrics such as axial length (AL), anterior chamber depth (ACD), lens thickness (LT), vitreous chamber depth (VCD) and corneal power (CP) with different refractive errors.
Hassan Hashemi, Mehdi Khabazkhoob, Mohammad Hassan Emamian, Mohammad Shariati, Mohammad Miraftab, Abbasali Yekta, Hadi Ostadimoghaddam, Akbar Fotouhi   +7 more
doaj   +1 more source

Deep learning for predicting refractive error from multiple photorefraction images

BioMedical Engineering OnLine, 2022
Background Refractive error detection is a significant factor in preventing the development of myopia. To improve the efficiency and accuracy of refractive error detection, a refractive error detection network (REDNet) is proposed that combines the ...
Daoliang Xu, Shangshang Ding, Tianli Zheng, Xingshuai Zhu, Zhiheng Gu, Bin Ye, Weiwei Fu   +6 more
doaj   +1 more source

Correlation of subfoveal choroidal thickness with axial length, refractive error, and age in adult highly myopic eyes

BMC Ophthalmology, 2018
Background Subfoveal choroidal thickness (SFCT) in highly myopic eyes was found to be correlated with increasing age, refractive error (spherical equivalent), and axial length. Which factor is the most significant predictor of SFCT remains controversial.
Bingqian Liu, Yan Wang, Tao Li, Ying Lin, Wei Ma, Xiaohong Chen, Cancan Lyu, Yonghao Li, Lin Lu   +8 more
doaj   +1 more source

Relationship of aniseikonia with differences of diopter and axial length in myopia patients

Di-san junyi daxue xuebao, 2022
Objective To explore the relationship of aniseikonia with differences of diopter and axial length in myopia patients, and the possible factors causing aniseikonia.
LIU Meng, DAI Cheng, LI Binzhong
doaj   +1 more source