Results 11 to 20 of about 354,589 (350)

Visual Acuity

Ophthalmology Science, 2023
Objective: To examine the data quality and usability of visual acuity (VA) data extracted from an electronic health record (EHR) system during ophthalmology encounters and provide recommendations for consideration of relevant VA end points in ...
Judith E. Goldstein, OD, Xinxing Guo, MD, PhD, Michael V. Boland, MD, PhD, Kerry E. Smith, BS   +3 more
doaj   +2 more sources

Estimating Visual Acuity Without a Visual Acuity Chart. [PDF]

Transl Vis Sci Technol
This study explored whether visual acuity (VA) can be inferred from self-reported ability to recognize everyday objects using a set of yes/no questions.Participants answered 100 yes/no questions designed to assess their ability to recognize familiar objects at typical viewing distances, such as distinguishing between a full moon and a half moon on a ...
Wu YH, Yu D, Goldstein JE, Kwon M, Gobeille M, Watson E, Waked L, Gage R, Wang C, Legge GE.   +9 more
europepmc   +3 more sources

Predicting postoperative visual acuity in epiretinal membrane patients and visualization of the contribution of explanatory variables in a machine learning model.

PLoS ONE
BackgroundThe purpose of this study was to develop a model that can predict the postoperative visual acuity in eyes that had undergone vitrectomy for an epiretinal membrane (ERM).
Akiko Irie-Ota, Yoshitsugu Matsui, Koki Imai, Yoko Mase, Keiichiro Konno, Taku Sasaki, Shinichiro Chujo, Hisashi Matsubara, Hiroharu Kawanaka, Mineo Kondo   +9 more
doaj   +3 more sources

Comparison of smartphone based peek visual acuity with Snellen Visual Acuity

Journal of Applied Pharmaceutical Research, 2023
Purpose: To test an alternative method of visual acuity assessment by comparing habitual and best-corrected visual acuity by Snellen and Peek (a visual acuity testing smartphone application).
Nisha Dulani, Harish Dulani, Tapas Kumar De   +2 more
doaj   +1 more source

Habitual visual acuity and visual acuity threshold demands in Nigerian school classrooms

Scientific Reports, 2022
This study was designed to estimate the burden of blindness and vision impairment in school children, and to determine the proportion of students meeting the visual acuity (VA) demand for their classrooms. From 148 primary and secondary school classrooms
Onyekachukwu Mary-Anne Amiebenomo, Ejitu Mfon Isong, Mark Eghaghe Edosa, Joy Margaret Woodhouse   +3 more
doaj   +1 more source

Age-related laryngoscopic visual acuity

African Journal of Emergency Medicine, 2021
Background: Endotracheal intubation by direct laryngoscopy is a mainstay of advanced airway management performed both in the prehospital environment and in the Emergency Department.
Abdul-Maajid Mathews, Christopher Stein, Marietjie Richter   +2 more
doaj   +1 more source

Vertical dynamic visual acuity is significantly lower than horizontal dynamic visual acuity

Scientific Reports, 2023
Dynamic visual acuity (DVA) is crucial for the perception of moving objects. While traditional DVA assessment tools predominantly focus on horizontal movements, the evaluation of vertical DVA remains unstandardized.
Aoi Tachihara, Zu Soh, Tomohiko Mizuguchi, Akihiko Kandori, Seiji Hama, Toshio Tsuji   +5 more
doaj   +1 more source

Habitual visual acuity in a large urban cohort of Western India and factors influencing poor habitual vision

Indian Journal of Ophthalmology, 2021
Purpose: The aim of this study was to determine habitual visual acuity (HVA) in a large urban cohort in western India and identify factors associated with poor HVA.
Nishant Kumar, Deepika Dhingra, Shibal Bhartiya, Meenakshi Wadhwani   +3 more
doaj   +1 more source

Visual acuity after trabeculectomy [PDF]

Vojnosanitetski Pregled, 2005
Background/Aim. In this study we compared the two groups of glaucoma patients who had underwent trabeculectomy, with or without intraoperative application of antimetabolite 5-Fluorouracile (5 FU). Methods. We followed up 50 glaucoma patients (group I) in
Buzarovska-Blaževska Karolina, Jordanova-Dimovska Vesna, Vukosavljević Miroslav, Džajkovska Elena   +3 more
doaj   +1 more source

Photometric compliance of tablet screens and retro-illuminated acuity charts as visual acuity measurement devices [PDF]

, 2016
Mobile technology is increasingly used to measure visual acuity. Standards for chart-based acuity tests specify photometric requirements for luminance, optotype contrast and luminance uniformity.
Bastawrous, A., Giardini, M.E., Hamilton, R., Livingstone, I.A.T., Middleton, D., Tarbert, C.M.   +5 more
core   +9 more sources