21. Improvement can be determined by visual acuity, visual field testing, and by ophthalmoscopic examination. 22. "The corner of the eye, " the poet writes in " Visual Field Test," 23. Patients with optic disc drusen should be monitored periodically for ophthalmoscopy, threshold visual fields . 24. Birds have acute eyesight fovea which magnifies the central part of the visual field . 25. For example, the visual field of a bird does not extend behind its body. 26. A patient with pituitary adenoma may present with visual field defects, classically bitemporal hemianopsia. 27. One permits vision only in the right visual field , thus activating the left brain. 28. The area of privacy has expanded way out into a much larger visual field . 29. Propaganda posters no longer have the visual field to themselves. 30. The vertical range of the visual field in humans is typically around 135 degrees.
