Results 51 to 60 of about 2,414 (173)
Indian Journal of Ophthalmology, 2012 The potential usefulness of smartphones in the medical field is evolving everyday. This article describes various tools available on smartphones, largely focusing on the iPhone, for the examination of an ophthalmic patient, for patient and physician ...
Jay Chhablani, Simon Kaja, Vinay A Shah
doaj +1 more source
Are high lags of accommodation in myopic children due to motor deficits? [PDF]
, 2017 The final publication is available at Elsevier via http://doi.org/10.1016/j.visres.2016.11.001 © 2017. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/Children with a ...
Bobier, William, Labhishetty, Vivek
core +1 more source
Programming scale-free optics in disordered ferroelectrics
, 2012 Using the history-dependence of a dipolar glass hosted in a compositionally-disordered lithium-enriched potassium-tantalate-niobate (KTN:Li) crystal, we demonstrate scale-free optical propagation at tunable temperatures.
Aharon J. Agranat +18 more
core +1 more source
Refractional astigmatism prevalence and its relationship with grating acuity in children 2 to 36 months of age [PDF]
, 2006 PURPOSE: To evaluate refractional astigmatism prevalence and its relationship with grating acuity in a cohort of non-verbal children. METHODS: 482 normal children, aged from 2 to 36 months, were submitted to ophthalmological examination.
Berezovsky, Adriana +5 more
core +2 more sources
Utilizing minicomputer technology for low-cost photorefraction: a feasibility study.
Biomedical Optics Express, 2020 Eccentric photorefraction is an objective technique to determine the refractive errors of the eye. To address the rise in prevalence of visual impairment, especially in rural areas, a minicomputer-based low-cost infrared photorefractor was developed ...
R. Agarwala, Alexander Leube, S. Wahl
semanticscholar +1 more source
Efficient generation of >2 W of green light by single pass frequency doubling in PPMgLN
, 2007 We report 32% efficient frequency doubling of single frequency 1029 nm light to green light at 514.5 nm using a single pass configuration. A congruent composition, periodically poled magnesium doped lithium niobate (PPMgLN) crystal of 50 mm length was ...
Boyd +14 more
core +1 more source
Indian Journal of Ophthalmology, 2020 Purpose: To evaluate the accuracy of Spot photoscreener (PS) as a noncycloplegic photorefractor in detecting amblyopia risk factors (ARFs) in preschool children in an Indian eye clinic setting.
Manasvini Sharma +7 more
semanticscholar +1 more source
Indian Journal of Ophthalmology, 2012 Iatrogenic keratectasia has been reported subsequent to refractive surgery or trauma. Hexagonal keratotomy (HK) is a surgical incisional technique to correct hyperopia.
Paras Mehta +2 more
doaj +1 more source
Repeatability and validity of the PowerRefractor and the Nidek AR600-A in an adult population with healthy eyes [PDF]
, 2003 We assessed the repeatability and validity of the PowerRefractor and the Nidek AR-600A autorefractor. This is the first independent study conducted on adults to evaluate the performance of these instruments in a laboratory setting.
Allen, Peter M. +2 more
core +2 more sources
Unilateral conjunctival ulcer due to Stenotrophomonas maltophilia infection
Indian Journal of Ophthalmology, 2012 We report a case of unilateral conjunctival ulcer due to Stenotrophomonas maltophilia infection in an immunocompetent individual. A 44-year-old male presented with complaints of pain and yellowish discharge in the right eye for one week.
Padmamalini Mahendradas +3 more
doaj +1 more source