Metrology of Complex Refractive Index for Solids in the Terahertz Regime Using Frequency Domain Spectroscopy [PDF]
, 2018 Frequency domain spectroscopy allows an experimenter to establish optical properties of solids in a wide frequency band including the technically challenging 10 THz region, and in other bands enables metrological comparison between competing techniques ...
Chick, Steven +3 more
core +2 more sources
NETRA: Interactive Display for Estimating Refractive Errors and Focal Range [PDF]
, 2010 We introduce an interactive, portable, and inexpensive solution for estimating refractive errors in the human eye. While expensive optical devices for automatic estimation of refractive correction exist, our goal is to greatly simplify the mechanism by ...
Ankit Mohan +9 more
core +1 more source
Impact of Ramadan fasting on intraocular pressure, visual acuity and refractive errors [PDF]
, 2011 Introduction: Fasting evidently influences a variety of physiological parameters that can impact the ocular system. Among these modifications are alterations in insulin secretion, sympathetic activity, free fatty acids, lipid profile, melatonin ...
Afarid, M +7 more
core
PREVALENCE OF REFRACTIVE ERRORS AMONG SECONDARY SCHOOL CHILDREN IN AN URBAN SETUP: A PROSPECTIVE AND OBSERVATIONAL STUDY [PDF]
, 2022 Objective: The aim of the study was to determine the prevalence of refractive errors and their types by their age, sex, and class among the students of secondary school in an urban area of state of Punjab, North India.
KAUR, HARBIR +3 more
core +1 more source
Paediatric Refractive Errors in an Eye Clinic in Osogbo, Nigeria [PDF]
, 2016 Background: Paediatric ophthalmology is an emerging subspecialty in Nigeria and as such there is paucity of data on refractive errors in the country. This study set out to determine the pattern of refractive errors in children attending an eye clinic in ...
Bimbo, Ayegoro +2 more
core +2 more sources
The Association of Central corneal thickness with Intra-ocular Pressure and Refractive Error in a Nigerian Population [PDF]
, 2008 The purpose of this study was to determine the variation of central corneal thickness (CCT) with intraocular pressure (IOP) and spherical equivalent refractive error.
Iyamu, Eghosasere, Memeh, Misan
core +1 more source
Refractive ocular conditions and reasons for spectacles renewal in a resource-limited economy [PDF]
, 2010 Background Although a leading cause of visual impairment and a treatable cause of blindness globally, the pattern of refractive errors in many populations is unknown.
A Richler +31 more
core +3 more sources
Rapid estimation of concentration of aromatic classes in middistillate fuels by high-performance liquid chromatography [PDF]
An high performance liquid chromatography (HPLC) method to estimate four aromatic classes in middistillate fuels is presented. Average refractive indices are used in a correlation to obtain the concentrations of each of the aromatic classes from HPLC ...
Otterson, D. A., Seng, G. T.
core +1 more source
High-sensitivity plasmonic refractive index sensing using graphene
, 2017 We theoretically demonstrate a high-sensitivity, graphene-plasmon based refractive index sensor working in the mid-infrared at room temperature. The bulk figure of merit of our sensor reaches values above $10$, but the key aspect of our proposed ...
Fogelström, Mikael +4 more
core +1 more source