Results 91 to 100 of about 13,973 (223)

Direct Image-Creating Aspheric Lens for Indirect Ophthalmoscopy

Ophthalmic Research, 2008
<i>Aims:</i> To describe a compact handheld optical lens that creates a real, upright image of the fundus with indirect ophthalmoscopy. <i>Methods:</i> The compound lens consists of three double aspheric lenses of variable dioptric power mounted coaxially in a plastic housing mount. Lens A and B are separated by a distance of 30.
Kakarla V, Chalam, Vikram S, Brar, Swati, Agarwal   +2 more
openaire   +2 more sources

Effects of Omidenepag Isopropyl Versus Latanoprost Eye Drops on Intraocular Pressure, Pupil Diameter, and Anterior Chamber Parameters in Normal Feline Eyes: A Pilot Study

Veterinary Ophthalmology, EarlyView.
ABSTRACT Objectives This study aimed to compare the effect of the newly developed selective prostaglandin E2 receptor agonist, omidenepag isopropyl (OMDI), and latanoprost on intraocular pressure (IOP), pupil diameter (PD), and anterior chamber parameters in normal feline eyes.
Sang‐Eun Park, Jiyi Hwang, Nanyoung Kang, Jiseung Jung, Heung‐Myong Woo, Kyung‐Mee Park   +5 more
wiley   +1 more source

A Smartphone-Based Tool for Rapid, Portable, and Automated Wide-Field Retinal Imaging. [PDF]

, 2018
Purpose:High-quality, wide-field retinal imaging is a valuable method for screening preventable, vision-threatening diseases of the retina. Smartphone-based retinal cameras hold promise for increasing access to retinal imaging, but variable image quality
Davila, Jose R, Echanique, Chris, Fletcher, Daniel A, Keenan, Jeremy, Kim, Tyson N, Li, Patrick, Loumou, Panagiota, Loury, PJ, Maamari, Robi N, Margolis, Todd, Myers, Frank, Paulus, Yannis M, Reber, Clay, Switz, Neil A, Webster, Doug, Woodward, Maria A   +15 more
core  

Direct Ophthalmoscopy Toward the Retinal Periphery

Canadian Journal of Optometry, 1980
Direct ophthalmoscopic examina­tion toward the retinal periphery re­quires the use of increasing amounts of plus lens power in the instrument. The purpose of this clinical study was to determine the amount of ad­ditional plus power required to focus on peripheral fundus details.
T David Williams, Dennis A Bader
openaire   +1 more source

Imaging Canine Post‐Trabecular Aqueous Outflow Pathways: Effect of Acute Intraocular Pressure Elevation in Normal Eyes

Veterinary Ophthalmology, EarlyView.
ABSTRACT Purpose To investigate the relationship between increased intraocular pressure (IOP) and the structure of the post‐trabecular aqueous outflow tract of dogs. Methods Ex vivo aqueous angiography (AA) and anterior segment optical coherence tomography (OCT) were performed concurrently in 19 normal canine eyes, following cannulation and ...
Odalys Torné, Jacob P. Nilles, Andrew L. Smith, Kevin C. Snyder, Kazuya Oikawa, Julie A. Kiland, Mary R. Telle, Mark Banghart, Gillian J. McLellan   +8 more
wiley   +1 more source

\u3cem\u3eIn vivo\u3c/em\u3e Imaging of Human Cone Photoreceptor Inner Segments [PDF]

, 2014
Purpose. An often overlooked prerequisite to cone photoreceptor gene therapy development is residual photoreceptor structure that can be rescued. While advances in adaptive optics (AO) retinal imaging have recently enabled direct visualization of ...
Carroll, Joseph, Curcio, Christine A., Dubra, Alfredo, Fishman, Gerald A., Langlo, Christopher S., Scoles, Drew, Sulai, Yusufu N.   +6 more
core   +1 more source

Utilidade da estesiometria corneal na triagem da retinopatia diabética [PDF]

, 2003
OBJECTIVE: To assess the usefulness of corneal esthesiometry for screening diabetic retinopathy. METHODS: A cross-sectional study was carried out comprising 575 patients attending a diabetic retinopathy-screening program in the city of São Paulo. Corneal
Alvarenga, Lênio Souza, Freitas, Denise de, Grottone, Gustavo Teixeira, Martins, Elisabeth Nogueira, Morales, Paulo Henrique Ávila, Paranhos Junior, Augusto, Scarpi, Marinho Jorge   +6 more
core   +4 more sources

An Ocular Manifestation of a Systemic Disease With Encephalitozoon Pogonae in a Juvenile Central Bearded Dragon (Pogona vitticeps)

Veterinary Ophthalmology, EarlyView.
ABSTRACT Objective Encephalitozoon pogonae, a recently identified microsporidian species, has been associated with systemic infections in Central bearded dragons (Pogona vitticeps) manifesting as granulomatous inflammation and vasculitis. Despite the species similarity to Encephalitozoon cuniculi, which causes ocular, neurologic, and renal pathology in
Vanessa Raphtis, Megan Roeder, Augusto Jimenez‐Romero, Danielle Meritet, Kelli Chan, Sarah Ozawa, Michala de Linde Henriksen   +6 more
wiley   +1 more source

Direct Ophthalmoscopic Indirect Ophthalmoscopy (DIDO) and Estimation Dynamic Distance Direct Ophthalmoscopy (E-DDDO). The Two Novel Uses of Direct Ophthalmoscope! [PDF]

Advances in Ophthalmology & Visual System, 2015
Aim: To describe two novel uses of a direct ophthalmoscope. 1) Direct ophthalmoscopic indirect ophthalmoscopy (DIDO) for the evaluation of the posterior pole of the eye from a distance using a direct ophthalmoscope and 2) estimation dynamic distance direct ophthalmoscopy (E-DDDO) for the objective measurement of accommodation in children.
openaire   +1 more source

Elemental Composition Analysis of Sheep Tears Using Particle‐Induced X‐Ray Emission

Veterinary Ophthalmology, EarlyView.
ABSTRACT Objective To identify the elemental composition of ovine tears using particle‐induced X‐ray emission (PIXE). Animals Studied Ten physically healthy female sheep. Procedures Tear samples were collected using Schirmer tear test strips. Tear samples were collected once daily over five consecutive days to assess reproducibility. Elemental analysis
Alon Zahavi, Oren Pe'er, Noa Cohen Sinai, Yoav Vardizer, Lionel Sebbag, Ron Ofri, Olga Girshevitz, Nitza Goldenberg‐Cohen   +7 more
wiley   +1 more source