Field of vision

1. SHORT TOPIC
FIELD OF VISION
CHAIRPERSON: DR AMRUTH
STUDENT:DR GANESH

2. The visual field is… “an island of
vision surrounded by a sea of
blindness.”
—Harry Traquair

4. VISUAL FIELD AT THE LEVEL OF THE RETINA.
THE POINT OF FIXATION IS FOCUSED ON THE
FOVEA, THE PHYSIOLOGIC BLIND SPOT ON
THE OPTIC DISK,
THE TEMPORAL HALF OF THE VISUAL FIELD
ON THE NASAL SIDE OF THE RETINA, AND THE
NASAL HALF OF THE VISUAL FIELD ON THE
TEMPORAL SIDE OF THE RETINA.

8. Cover one eye and stare fixedly straight
ahead. The entire area of vision is the visual
field of that eye.
The entire visual field consists of a central
field and a peripheral field, based on the
duality of the cone and rod receptors of the
retina.

21. EXAMINATION OF VISUAL FIELD

22. CONFRONTATION METHOD(DONDERS TEST)

29. PATIENT’S SIDE
EXAMINER’S SIDE OF GOLDMANN PERIMETER

31. VISUAL FIELD DEFECTS

32. • Deep arcuate field defect connected
to blind spot (Bjerrum scotoma)
Focal notch at the
disc reaching edge of
the disc
• Paracentral scotomaNotch is partial
• Double arcuate scotoma
Focal notches at both
poles
• Nasal Step
More widespread
involvement
(asymmetrical) of
fibers in disc

42. REFERENCE
1.DEJONGS NEUROLOGICAL EXAMINATION
2.HARRISONS TEXTBOOK OF MEDICINE
3.PAUL BRAZIS – LOCALIZATION OF LESION
4.NETTERS NEUROANOTOMY

43. THANK YOU…