Assessment of Stereoacuity in Patients with Strabismus

PURPOSE: To analyze the stereoacuity in patients with strabismus using various stereotests. METHODS: Stereoacuity was assessed in children diagnosed as intermittent exotropia or refractive accommodative esotropia using Titmus stereotest, TNO stereotest, and Lang stereotest. Patients with amblyopia or previous ocular surgery were excluded. RESULTS: Ninety-four patients with intermittent exotropia and thirty-six patients with refractive accommodative esotropia were included, and mean age was 7.2 years (4.0-13.9). Mean stereoacuity in intermittent exotropia was 143.1±207.9 seconds of arc (median 80 seconds of arc) with Titmus stereotest, 130.2±103.7 seconds of arc (median 60 seconds of arc) with TNO stereotest, and 200.0±0.0 seconds of arc (median 200 seconds of arc) with Lang stereotest. Mean stereoacuity in refractive accommodative esotropia was 430.3±288.6 seconds of arc (median 400 seconds of arc), 232.5±90.0 seconds of arc (median 240 seconds of arc), and 230.0±97.9 seconds of arc (median 200 seconds of arc), respectively. Absence of stereoacuity was more frequent in patients with refractive accommodative esotropia than in patients with intermittent exotropia, and both groups of patients showed the largest proportion of absent stereopsis with TNO stereotest. No factor was significant for stereopsis in patients with intermittent exotropia and patients with refractive accommodative esotropia. CONCLUSIONS: The stereoacuity showed various seconds of arc according to the type of stereotest in the same patient. Patients with refractive accommodative esotropia showed lower stereoacuity in all stereotests than patients with intermittent exotropia. TNO stereotest should be useful to detect the absence of stereopsis in patients with strabismus.

Author dc:creator

• 정, 유리

Contributors dc:contributor

• 장, 윤희
• 대학원 의학과
• 105224

• 입체시
• 간헐외사시
• 굴절조절내사시
• stereoacuity
• intermittent exotropia
• refractive accommodative esotropia

Language dc:language

ko

Identifier

http://dcoll.ajou.ac.kr:9080/dcollection/jsp/common/DcLoOrgPer.jsp?sItemId=000000006018
000000006018

OAI identifier oai:identifier

oai:repository.ajou.ac.kr:201003/1847