Visual Acuity Testing - University of Iowa
Oct 19, 2015 · Visual acuity testing has traditionally has been used as the primary indicator of the magnitude of functional impairment due to vision loss. This is because visual acuity is a strong …
Contrast Sensitivity Testing - University of Iowa
Oct 19, 2015 · Slide 9 In a similar way, contrast sensitivity testing evaluates vision over a range of spatial frequencies and contrast levels. Slide 10 By evaluating vision at different frequencies and …
Visual Field Testing: From One Medical Student to Another
Vision is a combination of distinct measurable functions: visual acuity, color vision, vernier (alignment) acuity, the perception of movement and change in luminous intensity (flicker) or differences in …
Pediatric Visual Acuity Testing - University of Iowa
May 9, 2021 · When testing a Child's Acuity, you have to consider whether to do Monocular or Binocular testing. For very young children, where I may only get one chance to assess their acuity, I will often …
Basic Pediatric Eye Exam - University of Iowa
Sep 11, 2020 · Outline We will discuss the general approach to examining children, stereopsis, the Worth four dot test, extraocular motility, confrontation visual fields, visual acuity, intraocular pressure, …
General Refraction Techniques Prior to starting your refraction, baseline visual acuities (OD, OS and OU) must be determined. For individuals with near vision complaints, and all presbyopes, near acuity …
Functional Visual Loss - University of Iowa
Mar 6, 2013 · Regardless of the etiology, it is important to have a repertoire of tests to differentiate true functional visual loss from organic visual loss. The approach and tests performed depends on the …
Ethambutol Toxicity and Optic Neuropathy: - University of Iowa
Nov 5, 2007 · The manufacturer recommends patients receiving ethambutol should have visual acuity testing before initiation of therapy and then periodically. Also the manufacturer recommends monthly …
The Bedside Ocular Examination - University of Iowa
Oct 26, 2012 · Ophthalmology clinics are filled with technical devices that are routinely used in patient exams. After becoming accustomed to these tools, seeing patients outside the comfortable confines …
EyeRounds.org - Ophthalmology - The University of Iowa
Nov 6, 2010 · One method of visual acuity testing in preverbal or nonverbal children is the CSM method. C refers to centrality and can be assessed by the location of the corneal light reflex as the patient …