Results 61 to 70 of about 11,434,288 (193)

Intra-cavity frequency doubling of an electrically pumped edge-emitting 980 nm laser diode with PPLN [PDF]

, 2009
The growing trend for laser-based projection displays makes intra-cavity frequency doubling (ICFD) of electrically and optically surface emitting diode lasers in the near IR region become more interesting [1-3].
Gawith, C.B.E., Li, Kang, Yao, Aiyun, Knight, Ian G., Copner, N.J.   +4 more
core   +2 more sources

Prevalence of glaucoma in Eastern India: The Hooghly River Glaucoma Study

Indian Journal of Ophthalmology, 2016
Context: Glaucoma is the leading cause of global irreversible blindness. No recent study with adequate sample size has been carried out to estimate glaucoma prevalence in Eastern India. Aims: The aim of this study was to assess and compare the prevalence
Chandrima Paul, Subhrangshu Sengupta, Sumit Choudhury, Souvik Banerjee, Betsy L Sleath   +4 more
doaj   +1 more source

Study of Optimal Perimetric Testing In Children (OPTIC): Normative visual field values in children [PDF]

, 2015
Purpose: We sought to define normative visual field (VF) values for children using common clinical test protocols for kinetic and static perimetry. Design: Prospective, observational study.
Cortina-Borja, M, Walters, BC, Cumberland, PM, Patel, DE, Russell-Eggitt, I, Rahi, JS   +5 more
core  

Self‐perceived and measured visual function, the impact of eye‐disease, wellbeing, social determinants, and personality traits in Swedish 70‐year‐olds–results from the Gothenburg H70 Study

Acta Ophthalmologica, Volume 103, Issue 4, Page 469-478, June 2025.
Abstract Purpose To explore the potential correlation between subjective and measured visual function, as well as to analyse the influence of eye disease, socioeconomic factors and emotional dimensions. Methods Semi‐structured interviews, physical examinations and functional tests (n = 1203).
Lena Havstam Johansson, Madeleine Zetterberg, Hanna Falk Erhag   +2 more
wiley   +1 more source

Comparative Evaluation of the Effectiveness of Standard and Non-standard Computer Perimetry Methods in the Early Diagnosis of Glaucoma

Oftalʹmologiâ
Purpose: tо compare the effectiveness of standard automated perimetry (SAP) and two non-standard perimetry methods in the diagnosis of the early stage primary open-angle glaucoma (POAG).Patients and methods.
I. L. Simakova, A. N. Kulikov, S. A. Serdyukova, I. A. Tikhonovskay   +3 more
doaj   +1 more source

The relationship between ON–OFF function and OCT structural and angiographic parameters in early diabetic retinal disease

Ophthalmic and Physiological Optics, Volume 45, Issue 1, Page 77-88, January 2025.
Abstract Purpose This study measured associations between ON and OFF functional indicators and structural optical coherence tomography (OCT) and OCT angiography (OCTA) markers in diabetic retinal disease. Methods Fifty‐four participants with type 1 or type 2 diabetes (mean age = 34.1 years; range 18–60) and 48 age‐matched controls (mean age = 35.4 ...
Vanessa T. S. Tang, Robert C. A. Symons, Spiros Fourlanos, Daryl Guest, Allison M. McKendrick   +4 more
wiley   +1 more source

Frequency-doubling technology perimetry for detection of the development of visual field defects in glaucoma suspect eyes: A prospective study

, 2014
Importance: While standard automated perimetry (SAP) remains the reference standard for evaluation of visual field (VF) defects in glaucoma, this study demonstrates that frequency-doubling technology (FDT) perimetry is effective in monitoring visual ...
Lai, Gilda, Weinreb, Robert N., Yu, Marco, Lam, Dennis Shun Chiu, Leung, Christopher Kai Shun, Liu, Shu   +5 more
core   +1 more source

Glaucoma detection with explainable AI using convolutional neural networks based feature extraction and machine learning classifiers

IET Image Processing, Volume 18, Issue 13, Page 3827-3853, 13 November 2024.
This diagram provides the Workflow diagram of the proposed system using CNN and machine learning classifiers (SVM and KNN). Abstract Glaucoma is an eye disease that damages the optic nerve as a result of vision loss, it is the leading cause of blindness worldwide.
Vijaya Kumar Velpula, Diksha Sharma, Lakhan Dev Sharma, Amarjit Roy, Manas Kamal Bhuyan, Sultan Alfarhood, Mejdl Safran   +6 more
wiley   +1 more source

Is frequency doubling technology a better detector of glaucoma progression than Humphrey standard automated perimetry?

, 2004
Is frequency doubling technology a better detector of glaucoma progression than Humphrey standard automated ...
T McCormick (13717474), D Hutchison (7894070), R LeBlanc (13706578), S Haymes (13709380), D Varma (13409196), P Artes (13717408), B Chauhan (13717405), M Nicolela (13706581)   +7 more
core  

Visual outcomes of bilateral congenital and developmental cataracts in young children in south India and causes of poor outcome

Indian Journal of Ophthalmology, 2013
Context: Bilateral pediatric cataracts are important cause of visual impairment in children. Aim: To study the outcome of bilateral pediatric cataract surgery in young children.
Rohit C Khanna, Allen Foster, Sannapaneni Krishnaiah, Manohar K Mehta, Parikshit M Gogate   +4 more
doaj   +1 more source