Visual Acuity is Essential for Optimal Visual Performance of NFL Players

The effect of Proprioceptive Neuromuscular Facilitation exercises on dynamic visual acuity and Sport performance of young basketball players

Aims: Deep sense plays a significant role in sensory control feedback, joint stability, coordination and balance. Despite the important role of vision and Proprioceptive Neuromuscular Facilitation on functional skills in athletes, a few studies have been conducted in this regard. This study aimed at investigating the effects of Proprioceptive Neuromuscular Facilitation exercises on dynamic visu...

Symptomatic Rathke’s Cleft Cyst Presenting With Decreased Visual Acuity

Background and Importance: Symptomatic Rathke’s cleft cyst is a rare lesion that often presents without any symptoms.  Case Presentation: We report a 40-year-old female with symptomatic Rathke’s cleft cyst located in the sellar and suprasellar region. She presented with visual disturbance, headache, weight gain, hypothyroidism and amenorrhea. The patient underwent surgery and ...

Standards for Visual Acuity

Development of visual acuity.

Catford, G. V., and Oliver, A. (1973). Archives of Disease in Childhood, 48, 47. Development of visual acuity. A hand-held electrically operated instrument has been devised to assess visual acuity by means of the phenomenon of optokinetic fixation nystagmus. An accurate determination of visual acuity has been obtained from an early age, and a graph of the normal visual acuity development produc...

Definition of visual acuity.

IT is well known that different types of test object will give different measures of acuity in terms of the size of the angle subtended at an observer's eye by the critical detail in the test object. Acuity of an average observer may vary from 1" arc, the thickness of a single black line just discernible on a white background, to about 1' arc, the size of a gap in a black ring viewed on a white...