Results 11 to 20 of about 301,445 (291)
Journal of Applied Clinical Medical Physics, Volume 23, Issue 12, December 2022., 2022 Abstract Positron emission tomography with x‐ray computed tomography (PET/CT) is increasingly being utilized for radiation treatment planning (RTP). Accurate delivery of RT therefore depends on quality PET/CT data. This study covers quality control (QC) procedures required for PET/CT for diagnostic imaging and incremental QC required for RTP.
Ran Klein +7 more
wiley +1 more source
In-vitro glistening formation in six different foldable hydrophobic intraocular lenses
BMC Ophthalmology, 2021 Background Glistenings describe small, refractile microvacuoles that may arise within the intraocular lens (IOL) material and reduce the patients’ quality of vision.
Tamer Tandogan +5 more
doaj +1 more source
CAUSES OF LOW VISION IN VARIOUS OCULAR CONDITIONS. [PDF]
International Journal of Advanced Research, 2018 This study reveals that why low vision occurs in the specific eye disease. It shows the actual reason for deterioration of vision in case of these diseases. In case of Glaucoma, optic nerve is damaged and due to its anatomical structure peripheral vision is lost and visual acuity is being deteriorated.
BrindaHaren Shah +1 more
openaire +2 more sources
BMC Ophthalmology, 2023 Background The study was intended to confirm whether Pars Plana Vitrectomy (PPV) with Internal Limiting Membrane (ILM) peeling and intravitreal injection mouse Nerve Growth Factor(mNGF) was effective for the treatment of Idiopathic Macular Hole(IMH) by ...
Xiao Yu +5 more
doaj +1 more source
In vitro optical quality measurements of three intraocular lens models having identical platform
BMC Ophthalmology, 2017 Background With recent advances in technology and introduction of new intraocular lens (IOL) models, surgeons today have the opportunity to choose from various optical designs, which can influence the postoperative quality of vision.
Hyeck Soo Son +6 more
doaj +1 more source
PAs' skills in providing vision and ocular care
JAAPA, 2022 ABSTRACT Objective: To evaluate characteristics, training, and self-reported skills and abilities in vision and ocular care among PAs not specializing in ophthalmology. Methods: A survey on PA practice was administered to 5,763 randomly selected US-based PAs, and 537 ...
Benjamin, Lee +3 more
openaire +3 more sources
Scientific Reports, 2023 Infectious keratitis refers to a group of corneal disorders in which corneal tissues suffer inflammation and damage caused by pathogenic infections. Among these disorders, fungal keratitis (FK) and acanthamoeba keratitis (AK) are particularly severe and ...
Mahmoud Essalat +4 more
doaj +1 more source
Mapping the ocular surface from monocular videos with an application to dry eye disease grading [PDF]
, 2022 With a prevalence of 5 to 50%, Dry Eye Disease (DED) is one of the leading reasons for ophthalmologist consultations. The diagnosis and quantification of DED usually rely on ocular surface analysis through slit-lamp examinations. However, evaluations are subjective and non-reproducible.
arxiv +1 more source
High order aberration and straylight evaluation after cataract surgery with implantation of an aspheric, aberration correcting monofocal intraocular lens [PDF]
International Journal of Ophthalmology, 2015 AIM:To evaluate the quality of vision in respect to high order aberrations and straylight perception after implantation of an aspheric, aberration correcting, monofocal intraocular lens (IOL).METHODS:Twenty-one patients (34 eyes) aged 50 to 83y underwent
Florian T A Kretz +3 more
doaj +1 more source
Unchanging visions: the effects and limitations of ocular stillness [PDF]
Philosophical Transactions of the Royal Society B: Biological Sciences, 2017 Scientists have pondered the perceptual effects of ocular motion, and those of its counterpart, ocular stillness, for over 200 years. The unremitting ‘trembling of the eye’ that occurs even during gaze fixation was first noted by Jurin in 1738. In 1794, Erasmus Darwin documented that gaze fixation produces perceptual fading, a phenomenon rediscovered ...
Susana Martinez-Conde +1 more
openaire +3 more sources