OBJECTIVE TECHNIQUES OF VISUAL ACUITY ASSESSMENT IN INFANCY
نویسندگان
چکیده
منابع مشابه
Objective assessment of visual acuity by induction of optokinetic nystagmus.
Optokinetic nystagmus is the term applied to the nystagmus evoked by a succession of moving objects passing before the eyes (Brain, 1962). It has proved useful as a diagnostic tool in the examination of patients with neurological disease (Cogan, 1956; Huber, 1961; Smith, 1963; Walsh, 1957). Methods of inducing and suppressing optokinetic nystagmus have also been used as the basis for objective ...
متن کاملObjective determination of human visual acuity: pattern evoked potentials.
The natural visual acuities of 15 adult persons were predicted on the basis of changes in visual evoked potentials (VEP's) to flashed patterns of various sized dots. An objective method was used to quantify the VEP's, based on the minimum-sized stimulus that would elicit a pattern VEP- the VEP pattern threshold. This measure was highly correlated with recognition and resolution measures of perc...
متن کاملObjective estimation of visual acuity with preferential looking.
PURPOSE A novel preferential looking (PL) procedure that uses quantitative analysis of visual scanning parameters is presented. METHODS Nine adult subjects were presented with a set of 14 visual stimuli (stimuli included three uniform gray fields and one field with black-and-white square wave gratings) spanning the range of spatial frequencies from 1.5 cyc/deg to 35.1 cyc/deg (1.3 logMAR to -...
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چکیده یکی از مهمترین دغدغه های بزرگ جوامع بشری، از دیر باز تا کنون که ذهن پژوهشگران و متخصصان بهداشت روانی و اجتماعی و دولتها رابه خود مشغول داشته، مسأله ی بزهکاری می باشد. شناخت کامل پدیده ی بزهکاری و بزهکار، علل وعوامل سقوط یک انسان، چگونگی درمان وی و درنهایت پیشگیری ازبزهکاری ودریک کلام سالم سازی یک جامعه، رسالت عظیم، انسانی ومقدسی می باشد که با بررسی شخصیت مجرم یعنی[ انسانی که تحت شرای...
15 صفحه اول[A new objective visual acuity test: an automated preferential looking].
BACKGROUND The Preferential Looking test using Teller acuity cards is widely used for preverbal children but has some weaknesses, in particular because it is examiner dependent and at best half-objective. We tested a new automated method in a pilot study. PATIENTS AND METHODS In our preferential looking setting we project separate images into the left and right eye. This permits measuring eac...
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ژورنال
عنوان ژورنال: Australian and New Zealand Journal of Ophthalmology
سال: 1986
ISSN: 0814-9763,1440-1606
DOI: 10.1111/j.1442-9071.1986.tb00037.x