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Visual Acuity
Research News and Information
Definition of 'Visual Acuity'Clarity or sharpness of OCULAR VISION or the ability of the eye to see fine details. Visual acuity depends on the functions of RETINA, neuronal transmission, and the interpretative ability of the brain. Normal visual acuity is expressed as 20/20 indicating that one can see at 20 feet what should normally be seen at that distance. Visual acuity can also be influenced by brightness, color, and contrast. |
Saturday, November 21, 2009
Effect of trichiasis surgery on visual acuity outcomes in Ethiopia.
30 Oct 2009 
OBJECTIVES: To determine the effect of trichiasis surgery on visual acuity. METHODS: A total of 439 participants in the Surgery for Trichiasis, Antibiotics to Prevent Recurrence (STAR) trial had visual and subjective concerns measured before and 6 ... Read more...
30 Oct 2009 OBJECTIVE: To clinically phenotype an inherited macular dystrophy with peculiar intraretinal pigment spots, cysts, and hemorrhage in a 24-year-old female proband and her family. METHODS: Extended family members of the proband underwent dilated ... Read more...
30 Oct 2009 OBJECTIVES: To compare the retinal nerve fiber layer (RNFL) thickness and retinal sensitivity in the normal visual hemifield of glaucomatous eyes with localized visual field loss with those of normal eyes and eyes with suspected glaucoma, and to ... Read more...
Latest indexed articles for 'Visual Acuity'
These are the very latest articles for this heading:
- Enterococcus casseliflavus endophthalmitis associated with a horse tail injury.
30 Oct 2009 - Subinternal limiting membrane hemorrhage with perimacular fold in leukemia. 30 Oct 2009
- Effect of trichiasis surgery on visual acuity outcomes in Ethiopia. 30 Oct 2009
- A new macular dystrophy with anomalous vascular development, pigment spots, cystic spaces, and neovascularization. 30 Oct 2009
- Diffuse glaucomatous structural and functional damage in the hemifield without significant pattern loss. 30 Oct 2009
- Outcomes of Ahmed glaucoma valve implantation in children with primary congenital glaucoma. 30 Oct 2009
- Angiographic changes after bevacizumab. 30 Oct 2009
- More on Schnyder corneal dystrophy. 30 Oct 2009
- Night driving after LASIK. 30 Oct 2009
- Phakic intraocular lens implantation for the correction of myopia: a report by the American Academy of Ophthalmology. 30 Oct 2009
- Long-term outcomes of repeat vs initial trabeculectomy in open-angle glaucoma. 30 Oct 2009
- Intravitreal ranibizumab as primary treatment for neovascular membrane associated with idiopathic juxtafoveal retinal telangiectasia. 30 Oct 2009
- Efficacy of intravitreal bevacizumab (Avastin) therapy for early and advanced neovascular age-related macular degeneration. 15 Oct 2009
- Five-year results of a randomized trial with open-label extension of triamcinolone acetonide for refractory diabetic macular edema. 29 Sep 2009
- Clinical and tomographic features of macular punctate outer retinal toxoplasmosis. 29 Sep 2009
- Progressive optic disc change: implications for clinical practice and trial design. 29 Sep 2009
- The cost of care for people with impaired vision in Australia. 29 Sep 2009
- Prevalence and causes of visual impairment in Chinese adults in urban southern China. 29 Sep 2009
- Features and function of multiple evanescent white dot syndrome. 29 Sep 2009
- Pars plana vitrectomy alone with diffuse illumination and vitreous dissection to manage primary retinal detachment with unseen breaks. 29 Sep 2009
See a longer list of these articles.
Technical information about 'Visual Acuity'
Definition: Clarity or sharpness of OCULAR VISION or the ability of the eye to see fine details. Visual acuity depends on the functions of RETINA, neuronal transmission, and the interpretative ability of the brain. Normal visual acuity is expressed as 20/20 indicating that one can see at 20 feet what should normally be seen at that distance. Visual acuity can also be influenced by brightness, color, and contrast.
Descriptor UI: D014792
Alternative terms: Visual Acuity; Acuities, Visual; Acuity, Visual; Visual Acuities;
Related Mesh Headings: Refraction, Ocular; Refractive Errors;
Allowable Qualifiers: drug effects; genetics; immunology; physiology; radiation effects;
Tree Number: E01.370.380.850.950; F02.463.593.932.901; G14.940;
History Note: 70(68)