Snellen


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  • noun

Synonyms for Snellen

Dutch ophthalmologist who introduced the Snellen chart to study visual acuity (1834-1908)

References in periodicals archive ?
Immediately prior to chiropractic examination and treatment, visual acuity was assessed by one of two investigators, both chiropractic interns, using a Snellen eye chart.
Visual acuity was LogMAR 1.0 (Snellen 6/60) or worse in the better eye in 23.4% of patients at presentation.
The sentence font sizes for these charts range from 1.3 logMAR (20/400 Snellen equivalent) to -0.5 logMAR (20/6 Snellen equivalent).
Snapshots of a few exhibitors, clockwise from top left: Philip Snellen. v.p sales and Dana Johnson.
Patients very well may have 20/20 eyesight, but "passing" the standard Snellen vision test does not indicate whether the child sees clearly all day; can focus back and forth to the blackboard or a book; sees single rather Man double; can read without getting a headache or falling asleep; or can follow words on a page without losing his or her place.
Raymond Corbey, Snellen om namen; De Marind-Anim van Nieuw-Guinea door de ogen van de Missionarissen van het Heilig Hart, 1905-1925.
In group 1,18 (72%) patients had gained by one line in the Snellen's visual acuitly at the end of fifteen months as compared to 03 (12%) patients in group 2.
At baseline, the patients' mean Snellen visual acuity was 20/135.
Visual outcome was defined as Snellen's or LogMar Best Corrected Visual Acuity at final follow up, of 120th day, compared to the visual acuity at presentation.
"HD 209458b is definitely not a place for the faint-hearted," quipped Ignas Snellen of Leiden Observatory, the Netherlands, who led a team of astronomers in the probe of the planet.
Q A MAN named Snellen invented the eye chart used by opticians.
Testing of visual acuity using the Snellen Chart (the standard eye chart used by eye care professionals to measure visual acuity) showed a significant improvement from baseline 14/20 to 17/20 after two months of treatment with Pycnogenol.
Suzanne Snellen, a board-certified geriatric nurse practitioner, has been hired by the Gerontology Institute at Sacred Heart Medical Centerin Eugene.
There is also a handy appendix entitled "Print Size Definitions and Conversions" that defines various measures of print size (Snellen, Jaeger numbers, LogMAR) and provides a reference for converting between these and other measures.