• binocular vision
  • This data shows a high prevalence of binocular vision deficits in chronically symptomatic post-concussion patients. (arvojournals.org)
  • Convergent powers are positive (e.g., +4.00 D) and condense light to correct for farsightedness (hyperopia) or allow the patient to read more comfortably (see presbyopia and binocular vision disorders). (wikipedia.org)
  • Orthoptists are mainly involved with diagnosing and managing patients with binocular vision disorders which relate to amblyopia, extraocular muscle balance such as with version, refractive errors, vergence, accommodation imbalances, (positive relative accommodation and negative relative accommodation). (wikipedia.org)
  • examiner's
  • Hence, a power corresponding to the working distance is subtracted from the gross retinoscopy value to give the patient's refractive condition, the working distance lens being one which has a focal length of the examiner's distance from the patient (e.g. +1.50 dioptre lens for a 67 cm working distance). (wikipedia.org)
  • For accurate retinoscopy the child should look at the examiner's light for a time period that varies from few seconds to few minutes. (aapos.org)
  • measurement
  • Recently, there has been an emphasis on the development of measurement tools that are free of operator bias, can be used by lay individuals, and provide a 'gold standard' for retinoscopy measurements. (bmj.com)
  • spherical
  • Unlimited diameter size, base curve options, spherical and cylinder power selections, zone sizes choices, near-center or distance-center configurations, annular bifocal or progressive multifocal options, and decentered optics in prolate or oblate lens designs are customized to meet the needs of our patients. (clspectrum.com)
  • test
  • Three out of four patients (34/45) demonstrated difficulty with the test. (arvojournals.org)
  • The test can be quick, easy, reliably accurate and requires minimal cooperation from the patient. (aapos.org)
  • the test is first done with the object farther away than the target distance, and then continued while moving it towards the patient until neutrality is observed. (thefreedictionary.com)
  • In this test the patient is seated at a standard distance and is asked to read letters or symbols of various sizes, which get smaller as you move down the chart. (eyewise.com)
  • Retinoscopy is a test that allows the doctor to obtain an approximate prescription for eyeglasses. (eyewise.com)
  • near
  • Dynamic retinoscopy is performed when the patient has active accommodation from viewing a near target. (wikipedia.org)
  • Additionally, multifocal lens designs altering the optic zone configuration to enhance the combination of distance and near vision success add to the customization formula to create patient acceptance. (clspectrum.com)
  • Are patients on and off a single monitor all day, addressing intermediate and near tasks, and moving around a large office setting or are they stuck in a small cubicle, surrounded by three large monitors, entering critical information for 8 to 10 hours per day, and then going home to spend time on digital devices? (clspectrum.com)
  • This set has been specifically selected with near retinoscopy in mind. (oepf.org)
  • Syndrome
  • Sagging Eye Syndrome: Older patients with divergence paralysis esotropia and normal horizontal ductions/saccades or small vertical deviations and no neurologic complaints may represent sagging eye syndrome from age-related orbital connective-tissue degeneration. (aao.org)
  • found
  • Another study found opaciļ¬cation in 28% of their patients with 2-3 years of follow-up. (aao.org)
  • light
  • However, in some cases general anesthesia may be needed if the child does not look at the light for the time period required for retinoscopy. (aapos.org)
  • The majority of autorefractors calculate the vision correction a patient needs (refraction) by using sensors that detect the reflections from a cone of infrared light. (wikipedia.org)
  • cataracts
  • Postoperative opaciļ¬cation of initially clear posterior capsules occurs frequently in patients after extracapsular extraction of senile cataracts. (aao.org)
  • allow the patient
  • Auto-refractors tend to allow the patient that has been accommodating to remain accommodating. (clspectrum.com)
  • This is accomplished by using anaglyphic (Red/Green) material to allow the patient to use both eyes to see while only one eye can see a central target, either what is depicted on the game Tile or the Transparent Matrix. (oepf.org)
  • glasses
  • Some have come around, but the large majority of them continue to prescribe glasses and tell their patients that nothing can be done to reverse myopia and other conditions. (iblindness.org)
  • The poor visual performance is understood as distress, and treatments are usually to provide the patient with low powered reading glasses. (wikipedia.org)
  • provide
  • This article will provide a step-by-step blueprint for configuring a multifocal lens design to drive successful outcomes for your patients. (clspectrum.com)
  • vision
  • as for vision testing, we tried to use 1000 beads but the patient is uncooperative and not well (have fever) on that day. (blogspot.com)
  • For example, a patient that has 20/40 vision, can only see at 20 feet what the normal person can see from a distance of 40 feet. (eyewise.com)
  • This feedback refines the prescription to one which provides the patient with the best vision. (wikipedia.org)
  • Full
  • Walsh's role in the research project included visiting many of Ford's patients and giving full ophthalmologic exams. (wikipedia.org)
  • rather
  • If prescribers don't understand exactly what patients expect, success is achieved by luck rather than design. (clspectrum.com)
  • Rather than determining which of two images looks clearer, patients need only line up an array of dots and lines until they overlap. (wikipedia.org)
  • possible
  • from my opinion, since the patient is uncooporative awake, is it possible to ask the parent to put the baby to sleep while we do mohindra maybe. (blogspot.com)
  • follow
  • Sinskey and Cain reported that 43% of their patients require discission, with an average follow up of 26 months and a range from 3 months-4 years. (aao.org)
  • cases
  • However, patients over 50 with vasculopathic risk factors and an isolated cranial neuropathy without other neurologic signs or symptoms are more controversial cases. (aao.org)
  • average
  • Retinomax reproducibility averaged 0.43 D. Unbiased Retinomax and retinoscopy measurements differed by an average of 0.82 D. Unbiased Retinomax and subjectively refined retinoscopy differed by an average of 1.03 D. (bmj.com)