Results 101 to 110 of about 60,613 (227)
A proposed rapid methodology to assess the prevalence and causes of blindness and visual impairment.
, 2006 PURPOSE: To determine whether a sample of the 50-year-old and above population would provide comparable information to a total population-based survey. METHODS: In 1996, a national eye survey of the total population in The Gambia was undertaken and the ...
Dineen, Brendan +2 more
core +1 more source
Ophthalmic and Physiological Optics, EarlyView.Abstract Aims To develop and validate a low‐cost, portable automated refraction system (Tongren Digital Sight, TRDS) using deep learning and infrared eccentric photorefraction to improve refractive error correction in resource‐constrained settings. Methods This randomised controlled crossover trial enrolled 282 participants (18–60 years of age) at ...
Huang Yan +5 more
wiley +1 more source
Causes of severe visual impairment and blindness in Bangladesh: a study of 1935 children.
, 2007 OBJECTIVE: To identify the anatomical site and underlying aetiology of severe visual impairment and blindness (SVI/BL) in children in Bangladesh. DESIGN: A national case series. METHODS: Children were recruited from all 64 districts in Bangladesh through
Foster, A +3 more
core +1 more source
The role of astigmatism in myopia development, myopia progression and myopia control
Ophthalmic and Physiological Optics, EarlyView.Abstract Aims/Purpose Myopia arises primarily due to excessive axial elongation and is associated with an increased risk of ocular complications and visual impairment, particularly in high myopia. Although astigmatism may have implications on refractive development, the role of astigmatism in myopic eye growth and the effectiveness of myopia control ...
Stephanie Kearney +2 more
wiley +1 more source
Prevalence of visual impairment and estimation of refractive errors among school children in Kakamega, Kenya [PDF]
International Journal of OphthalmologyAIM: To investigate the prevalence of visual impairment (VI) and provide an estimation of uncorrected refractive errors in school-aged children, conducted by optometry students as a community service. METHODS: The study was cross-sectional.
Isabel Signes-Soler +4 more
doaj +1 more source
Effects of the ISM on Detection of Low-frequency Gravitational Waves
, 2013 Time variable delays due to radio wave propagation in the ionized interstellar medium are a substantial source of error in pulsar timing array efforts.
Stinebring, Dan
core +1 more source
Impact of contact lens correction on wavefront aberrations and vision quality in keratoconus
Ophthalmic and Physiological Optics, EarlyView.Abstract Purpose To review the optical principles of contact lens correction in keratoconus, with a focus on residual ocular wavefront error and its impact on vision performance. Findings Corneal rigid gas permeable (RGP) contact lenses, commonly used in keratoconus management, often fail to improve vision quality to levels observed in non‐diseased ...
Gavin Swartz +3 more
wiley +1 more source
Unrecognized and unregistered blindness in people 70 or older in Jing’an district, Shanghai, China
International Journal of Ophthalmology, 2013 AIM: To evaluate the efficacy of a registration system for the blind people and to monitor the blindness due to uncorrected refractive error and cataract in Jing’an district, Shanghai, China.METHODS: Five hundred and ten blind people, based on visual ...
Cheng-Hai Wen +3 more
doaj +1 more source
Interventional human ocular safety experiments for 222‐nm far‐ultraviolet‐C lamp irradiation
Photochemistry and Photobiology, Volume 101, Issue 2, Page 517-526, March/April 2025.To directly assess the ocular safety of 222‐nm far‐ultraviolet‐C (UVC) irradiation in humans, five subjects were exposed to 222‐nm UVC at doses of 22, 50, and 75 mJ/cm2. The findings indicate that far‐UVC irradiation does not cause “clinically significant photokeratitis” or long‐term ocular damage, though it may induce temporary discomfort.
Kazunobu Sugihara +3 more
wiley +1 more source
Small-aperture corneal inlay in patients with prior radial keratotomy surgeries
Clinical Ophthalmology, 2013 Tukezban Huseynova,1,* Tomomi Kanamori,1 George O Waring IV,2 Minoru Tomita1,3,* 1Shinagawa LASIK Center, Chiyoda-ku, Tokyo, Japan; 2Medical University of South Carolina, Storm Eye Institute, Charleston, SC, USA; 3Department of Ophthalmology, Wenzhou ...
Huseynova T +3 more
doaj