Results 31 to 40 of about 23,990 (234)

Reduction in peripheral arterial stiffness after reactive hyperemia is dependent on increases in blood flow

Physiological Reports, 2023
The acute reduction in peripheral arterial stiffness during reactive hyperemia is assumed to be flow‐mediated; however, the mechanism remains unproven. We hypothesized that restricting the blood flow increase during reactive hyperemia would abolish the ...
Ronald E. Jackson, Natalia S. Lima, Sara R. Sherman, Philip S. Clifford   +3 more
doaj   +1 more source

An Agreement of Two Tonometers: Goldmann Applanation and Non-Contact Scheimflug Technology in Healthy, Ocular Hypertension and Open-angle Glaucoma Patients

Siriraj Medical Journal, 2019
Objective: The primary objective was to find an agreement of intraocular pressure (IOP) assessed by Goldmann applanation tonometry (GAT) and Corvis in healthy, ocular hypertension (OHT) and primary open-angle glaucoma (POAG).
Sakaorat Petchyim, M.D., Panida Kosrirukvongs, M.D., Ankana Metheetrairut, M.D., Sucheera Sarunket, M.D., Henry Warouw, M.D., Jatupol Chokboonpiem, M.D.   +5 more
doaj   +1 more source

High sampling resolution optical coherence tomography reveals potential concurrent reductions in ganglion cell‐inner plexiform and inner nuclear layer thickness but not in outer retinal thickness in glaucoma

Ophthalmic and Physiological Optics, Volume 43, Issue 1, Page 46-63, January 2023., 2023
Abstract Purpose To analyse optical coherence tomography (OCT)‐derived inner nuclear layer (INL) and outer retinal complex (ORC) measurements relative to ganglion cell‐inner plexiform layer (GCIPL) measurements in glaucoma. Methods Glaucoma participants (n = 271) were categorised by 10‐2 visual field defect type.
Janelle Tong, Jack Phu, David Alonso‐Caneiro, Sieu K. Khuu, Michael Kalloniatis   +4 more
wiley   +1 more source

Corneal tissue changes following short‐term soft contact lens wear of different materials

Ophthalmic and Physiological Optics, Volume 43, Issue 1, Page 35-45, January 2023., 2023
Abstract Purpose To study the effect of different soft contact lens (CL) materials during short‐term wear on corneal tissue. Methods Twenty‐two healthy participants wore both silicone hydrogel (MyDay, CooperVision) and hydrogel soft CLs (Biomedics 1 day extra, CooperVision) for 8 h per lens.
Alejandra Consejo, Irene Trillo‐Moreno, Laura Remon   +2 more
wiley   +1 more source

Intraocular Pressure Study in Ex Vivo Pig Eyes by the Laser-Induced Cavitation Technique: Toward a Non-Contact Intraocular Pressure Sensor

Applied Sciences, 2020
Traditional applanation tonometry techniques lack the necessary accuracy and reliability for measuring the intraocular pressure (IOP), and there is still a need for a reliable technique for in vivo diagnosis.
Santiago Camacho-Lopez, Carlos Andrés Zuñiga-Romero, Luis Felipe Devia-Cruz, Carolina Alvarez-Delgado, Marcos Antonio Plata-Sanchez, Leopoldo Martinez-Manuel   +5 more
doaj   +1 more source

Macroscopic morphological aspects, ecometry and rebound tonometry of the eye bulb in sloth (Bradypus variegatus) [PDF]

Pesquisa Veterinária Brasileira, 2020
: The field related to the visual system of wild animals is deeply scarce. Settling anatomical and physiological parameters for these animals is still a descriptive vision for Bradypus variegatus (Schinz, 1825).
Richelle S. Braz, Marleyne J.A.A.L. Amorim, Fabrício B. Sá, Priscilla V. Albuquerque, Elayne Cristine S. Silva, Rinaldo C. Ferri, Lucilo B. Fonsêca Filho, Gilcifran P. Andrade   +7 more
doaj   +1 more source

Future Research Perspective on the Interfacial Physics of Non-Invasive Glaucoma Testing in Pathogen Transmission from the Eyes [PDF]

arXiv, 2023
Non-contact Tonometry (NCT) is a non-invasive ophthalmologic technique to measure intraocular pressure (IOP) using an air puff for routine glaucoma testing. Although IOP measurement using NCT has been perfected over many years, various phenomenological aspects of interfacial physics, fluid structure interaction, waves on corneal surface, and pathogen ...
arxiv  

Reliability and reproducibility of intraocular pressure measurements using the Goldmann applanation tonometry in glaucoma suspects

TNOA Journal of Ophthalmic Science and Research, 2023
Aims: This study aimed to examine the intra-observer reliability of three ophthalmologists who measured intraocular pressure (IOP) using the Goldmann applanation tonometry (GAT) and the inter-observer variability among them during three visits of ...
Harshita Dubey, Devendra Kumar Shakya, Divya Rana, Durgesh Shukla   +3 more
doaj   +1 more source

Electrical impedance plethysmography versus tonometry to measure the pulse wave velocity in peripheral arteries in young healthy volunteers: a pilot study

Journal of Electrical Bioimpedance, 2021
The leading cause of health loss and deaths worldwide are cardiovascular diseases. A predictor of cardiovascular diseases and events is the arterial stiffness. The pulse wave velocity (PWV) can be used to estimate arterial stiffness non-invasively.
Wiegerinck A. I. P., Thomsen A., Hisdal J., Kalvøy H., Tronstad C.   +4 more
doaj   +1 more source

The influence of altitude on the differences between Goldmann tonometry and Pascal dynamic contour tonometry: An ecological meta-analysis

Indian Journal of Ophthalmology, 2023
Purpose: A meta-analysis found that including atmospheric pressure as altitude in generalized linear models reveals higher differences between Goldmann tonometry and Pascal dynamic contour tonometry at higher altitudes, with the difference increasing in ...
Oscar Albis-Donado, Paulina Ramirez-Neria, Nadia Rios-Acosta, Ingeborg Stalmans   +3 more
doaj   +1 more source