Results 21 to 30 of about 542,328 (149)
, 2008 A fundus camera a complex optical system that makes use of the principle of reflex free indirect ophthalmoscopy to image the retina. Despite being in existence as early as 1900's, little has changed in the design of a fundus camera and there is minimal ...
DeHoog, Edward Allen
core +5 more sources
Fundus evaluation in COVID-19 positives with non-severe disease
Indian Journal of Ophthalmology, 2021 Purpose: The aim of this work was to study and document retinal changes in coronavirus disease-2019 (COVID-19) positive patients with nonsevere disease using a nonmydriatic handheld fundus camera.
Ravi Bypareddy +9 more
doaj +1 more source
Color fundus imaging in retinopathy of prematurity screening: Present and future
Indian Journal of Ophthalmology, 2023 Advent of pediatric handheld fundus cameras like RetCam, 3netra Forus, and Phoenix ICON pediatric retinal camera has aided in effective screening of retinopathy of prematurity (ROP), especially in countries with limited number of trained specialists ...
Sushma Jayanna +4 more
doaj +1 more source
Smartphone-enabled retinal arteriovenous imaging and correlation with coronary SYNTAX score
Indian Heart Journal, 2022 Objective: To assess the feasibility of measurement of retinal arteriovenous (AV) ratio using a smartphone, we performed a comparative evaluation with fundus camera imaging and coronary SYNTAX score.
Harshad C. Ambaliya +5 more
doaj +1 more source
Fundus imaging with a mobile phone: A review of techniques
Indian Journal of Ophthalmology, 2014 Fundus imaging with a fundus camera is an essential part of ophthalmic practice. A mobile phone with its in-built camera and flash can be used to obtain fundus images of reasonable quality.
Mahesh P Shanmugam +5 more
doaj +1 more source
Delta Journal of Ophthalmology, 2018 Objective The aim of this study was to detect early fundus changes accompanying hydroxychloroquine (HCQ) treatment by using fundus autofluorescence (FAF) with confocal scanning laser ophthalmoscope (CSLO) in comparison to fundus camera.
Saber H El-Sayed +3 more
doaj +1 more source
Indian Journal of Ophthalmology, 2023 Fundus photography is an arduous task as it involves using 90 D in one hand and a smartphone attached on an eyepiece of a slit-lamp biomicroscope in the other hand.
Atul Bhirud +3 more
doaj +1 more source
Accurate and reliable segmentation of the optic disc in digital fundus images [PDF]
, 2014 We describe a complete pipeline for the detection and accurate automatic segmentation of the optic disc in digital fundus images. This procedure provides separation of vascular information and accurate inpainting of vessel-removed images, symmetry-based ...
Giachetti, Andrea +4 more
core +1 more source
A Portable, Inexpensive, Nonmydriatic Fundus Camera Based on the Raspberry Pi® Computer
Journal of Ophthalmology, 2017 Purpose. Nonmydriatic fundus cameras allow retinal photography without pharmacologic dilation of the pupil. However, currently available nonmydriatic fundus cameras are bulky, not portable, and expensive.
Bailey Y. Shen, Shizuo Mukai
doaj +1 more source
Unconventional techniques of fundus imaging: A review
Indian Journal of Ophthalmology, 2015 The methods of fundus examination include direct and indirect ophthalmoscopy and imaging with a fundus camera are an essential part of ophthalmic practice.
Mahesh P Shanmugam +3 more
doaj +1 more source