[Motion-in-depth Perception and Static Stereopsis of Patients with Strabismics].
Sichuan Da Xue Xue Bao Yi Xue Ban
; 49(6): 974-978, 2018 Nov.
Article
in Zh
| MEDLINE
| ID: mdl-32677414
ABSTRACT
OBJECTIVE:
To determine the role of motion-in-depth perception and static stereopsis in strabismics, and factors associated with the perception of motion-in-depth.METHODS:
A total of 84 strabismic patients (including 57 intermittent exotropes, 12 constant exotropes and 15 esotropes) and 16 normal controls were recruited. Binocular fusion ability, static stereopsis and motion-in-depth perception were tested using the computer-generated stereoscopic stimuli. The correlations between these tests were analyzed.RESULTS:
There was a significant correlation between motion-in-depth perception and static stereopsis in strabismics. Only patients with static stereopsis demonstrated the perception of motion-in-depth. A positive correlation was found between motion-in-depth perception thresholds and static stereopsis in intermittent exotropes. All participants in the control group had motion-in-depth perception and static stereopsis. The participants with stereopsis had significantly lower thresholds than those with strabismus (P<0.01). The perception of motion-in-depth varied with the type of strabismus 87.7% of the intermittent exotropes exhibited motion-in-depth perception, whereas none of the constant strabismics were able to pass the motion-in-depth perception tests. The perception of motion-in-depth was correlated with the presence of binocular fusion.CONCLUSIONS:
Motion-in-depth perception is correlated with static stereopsis in strabismics. The perception of motion-in-depth varies with the type of strabismus only intermittent exotropes have the perception of motion-in-depth.
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Collection:
01-internacional
Database:
MEDLINE
Language:
Zh
Journal:
Sichuan Da Xue Xue Bao Yi Xue Ban
Year:
2018
Document type:
Article