Results 11 to 20 of about 88,343 (292)

Three-dimensional Highfrequency Ultrasonic Parameter Imaging of Anterior Segment Pathology

Ophthalmology, 1995
High-frequency ultrasound allows high-resolution imaging of anterior segment anatomy and pathology. Acoustic echo data, however, contain information relating to the microanatomic structure of the interrogated tissue which is not evident in B-mode images. The aim of this study is to develop imaging techniques to demonstrate and quantify the distribution
R H, Silverman, M J, Rondeau, F L, Lizzi, D J, Coleman   +3 more
openaire   +4 more sources

Biometric indicators of anterior segment parameters before and after laser peripheral iridotomy by swept-source optical coherent tomography

BMC Ophthalmology, 2022
Background Primary angle closure glaucoma (PACG) is the most common type of glaucoma in China. Laser peripheral iridotomy (LPI) is the primary choice to treat PAC: We aim to evaluate the changes of biometric parameters of anterior segment and to find ...
Bo Yu, Kang Wang, Xiaomin Zhang, Xiaoli Xing   +3 more
doaj   +1 more source

Increased cranio-caudal spinal cord oscillations are the cardinal pathophysiological change in degenerative cervical myelopathy

Frontiers in Neurology, 2023
IntroductionDegenerative cervical myelopathy (DCM) is the most common cause of non-traumatic incomplete spinal cord injury, but its pathophysiology is poorly understood. As spinal cord compression observed in standard MRI often fails to explain a patient'
Nikolai Pfender, Nikolai Pfender, Jan Rosner, Jan Rosner, Carl M. Zipser, Carl M. Zipser, Susanne Friedl, Susanne Friedl, Martin Schubert, Martin Schubert, Reto Sutter, Markus Klarhoefer, José M. Spirig, Michael Betz, Patrick Freund, Mazda Farshad, Armin Curt, Armin Curt, Markus Hupp   +18 more
doaj   +1 more source

Comparison of two Nd:YAG laser posterior capsulotomy: cruciate pattern vs circular pattern with vitreous strand cutting [PDF]

International Journal of Ophthalmology, 2018
AIM: To investigate the effects and safety of neodymium: yttrium-aluminium-garnet (Nd:YAG) laser posterior capsulotomy with vitreous strand cutting METHODS: A total of 40 eyes of 37 patients with symptomatic posterior capsular opacity (PCO) were ...
Jin-Soo Kim, Jung Yeol Choi, Ji-Won Kwon, Won Ryang Wee, Young Keun Han   +4 more
doaj   +1 more source

Relationship among Corneal Biomechanics, Anterior Segment Parameters, and Geometric Corneal Parameters [PDF]

Journal of Ophthalmology, 2016
Purpose. To investigate the relationship between corneal biomechanical parameters, anterior segment parameters, and geometric corneal parameters in a healthy Caucasian group. Methods. This retrospective study included the healthy eyes with best corrected visual acuity of at least 20/40 of 122 Caucasian subjects.
Sadık Görkem Çevik, Sertaç Argun Kıvanç, Berna Akova-Budak, Mediha Tok-Çevik   +3 more
openaire   +4 more sources

Evaluation and Comparison of Posterior Corneal Elevation Parameters in Different Grades of Keratoconus By Pentacam

Acta Medica Iranica, 2022
To evaluate and compare posterior corneal elevation data and anterior segment parameters in different grades of keratoconus by Pentacam. 114 eyes of 114 keratoconic patients (85 men and 56 women) with a mean age of 31.6±4.7 years were evaluated with a ...
Reyhane Shariati Moghaddam, Asgar Doostdar, Payam Nabovati, Abbasali Yekta, Mohammad-Mehdi Sadoughi, Ali Mirzajani, Mehdi Khabazkhoob   +6 more
doaj   +1 more source

Refraction and eye anterior segment parameters in schizophrenic patients [PDF]

Arquivos Brasileiros de Oftalmologia, 2015
To evaluate the difference in terms of refractive errors and anterior segment parameters between schizophrenic patients and healthy volunteers.This study compared 70 patients (48 men) who were diagnosed with schizophrenia with a control group of 60 (35 men) who were similar in terms of age, gender, education, and socioeconomic level.
Cumurcu, Tongabay, Keser, Sinem, Cumurcu, Birgul Elbozan, Gunduz, Abuzer, Kartalci, Sukri   +4 more
openaire   +4 more sources

Characteristics of Anterior Segment in Congenital Ectopia Lentis: An SS-OCT Study

Journal of Ophthalmology, 2022
Purpose. To investigate the characteristics of anterior chamber angle parameters in congenital ectopia lentis (CEL) patients and to evaluate the sensitivity and specificity of anterior segment parameters in distinguishing CEL from healthy controls ...
Haotian Qi, Guangming Jin, Minjie Zou, Charlotte Young, Liyan Liu, Zhangkai Lian, Dongwei Guo, Zhenzhen Liu, Danying Zheng   +8 more
doaj   +1 more source

Ocular Biometry of Primary Angle-Closure Disease in Younger Patients

Frontiers in Medicine, 2021
Background: The purpose of this study was to analyze the ocular biometric parameters of primary angle-closure disease (PACD) in younger patients and compare them with those of elderly patients.Methods: This clinic-based, cross-sectional study included ...
Shufen Lin, Chengguo Zuo, Yuan Liu, Hui Xiao, Lei Fang, Yihua Su, Yihua Su, Liming Chen, Mingkai Lin, Yunlan Ling, Xing Liu   +10 more
doaj   +1 more source

Mental rotation meets the motion aftereffect: the role of hV5/MT+ in visual mental imagery [PDF]

, 2011
A growing number of studies show that visual mental imagery recruits the same brain areas as visual perception. Although the necessity of hV5/MT+ for motion perception has been revealed by means of TMS, its relevance for motion imagery remains unclear ...
Duvernoy H. M., Erik Achten, Floris P. de Lange, Guy Vingerhoets, Ruth Seurinck   +4 more
core   +1 more source