1.Lateral gaze center is Frontal eyefield (FEF)
Lateral gaze center is Frontal eyefield (FEF) that is situated in area 8 the fibers descend through the internal capsule crosses to opposite side reaches brainstem the para-abducent nucleus of pons through abducent nerve reaches the lateral rectus to opposite side.
From para-abducent nucleus which is the pontine lateral gaze center fibers passes through medial longitudinal fasciculus (MLF) to the medial rectus nucleus of same side.
Stimulation of FEF result in conjugate gaze to opposite side.
Paralytic or destructive lesion of FEF result in Lateral gaze palsy to opposite side. Both eyes turn to same side.
Frontal eye field also controls saccadic movement to opposite side
Both eye field control vertical saccadic movement. This has regulatory effects on LPS. Stimulation of contraction of LPS resulting in opening of eye and dilatation of pupil.
2.Occipital gaze center area 18-19
Occipital gaze center area 18-19 cortico-fugal fibers passes through the optic radiation - post, limb of internal capsule - cerebral peduncle to 3rd nucleus and MLF.
Occipital gaze center control the pursuit movement occipital gaze center of one side control pursuit movement to the opposite side and same side.
Both occipital gaze centers together control vertical pursuit movement
3.Interstitial nucleus of cajal
It is situated at the level of Superior Colliculus it control the vertical gaze
4.Central nucleus of perlia is situated in the mid-brain is the center for convergence
5.Pontine lateral gaze center is close to 6th cranial nerve nuclei, send impulses to ipsilateral lateral rectus nuclei and contralateral Medial rectus nuclei through MLF
Stimulation produce lateral gaze to same side
Destruction produce lateral gaze to opposite side.
Lateral gaze center is Frontal eyefield (FEF) that is situated in area 8 the fibers descend through the internal capsule crosses to opposite side reaches brainstem the para-abducent nucleus of pons through abducent nerve reaches the lateral rectus to opposite side.
From para-abducent nucleus which is the pontine lateral gaze center fibers passes through medial longitudinal fasciculus (MLF) to the medial rectus nucleus of same side.
Stimulation of FEF result in conjugate gaze to opposite side.
Paralytic or destructive lesion of FEF result in Lateral gaze palsy to opposite side. Both eyes turn to same side.
Frontal eye field also controls saccadic movement to opposite side
Both eye field control vertical saccadic movement. This has regulatory effects on LPS. Stimulation of contraction of LPS resulting in opening of eye and dilatation of pupil.
2.Occipital gaze center area 18-19
Occipital gaze center area 18-19 cortico-fugal fibers passes through the optic radiation - post, limb of internal capsule - cerebral peduncle to 3rd nucleus and MLF.
Occipital gaze center control the pursuit movement occipital gaze center of one side control pursuit movement to the opposite side and same side.
Both occipital gaze centers together control vertical pursuit movement
3.Interstitial nucleus of cajal
It is situated at the level of Superior Colliculus it control the vertical gaze
4.Central nucleus of perlia is situated in the mid-brain is the center for convergence
5.Pontine lateral gaze center is close to 6th cranial nerve nuclei, send impulses to ipsilateral lateral rectus nuclei and contralateral Medial rectus nuclei through MLF
Stimulation produce lateral gaze to same side
Destruction produce lateral gaze to opposite side.
