J Korean Ophthalmol Soc > Volume 58(4); 2017 > Article
Journal of the Korean Ophthalmological Society 2017;58(4):449-454.
DOI: https://doi.org/10.3341/jkos.2017.58.4.449    Published online April 15, 2017.
Clinical Features of Strabismus in Patients with Unilateral Pediatric Cataract.
Sung Soo Hwang, Soo Jung Lee
Department of Ophthalmology, Haeundae Paik Hospital, Inje University College of Medicine, Busan, Korea. kris9352@hanmail.net
단안 소아백내장과 사시발현의 임상양상
인제대학교 의과대학 해운대백병원 안과학교실
Correspondence:  Soo Jung Lee,
Email: kris9352@hanmail.net
Received: 19 January 2017   • Revised: 17 February 2017   • Accepted: 28 March 2017
The incidence rate and clinical features of strabismus and factors affecting onset of strabismus were evaluated in patients with unilateral pediatric cataract. METHODS: A total of 42 patients who underwent lens removal for treatment of unilateral cataract between January 1996 and January 2011 were evaluated. Patients were divided into 3 groups (Ortho/Ortho, Ortho/Strabismus, and Strabismus/Strabismus) according to preoperative and postoperative ocular alignment. Age at surgery, visual acuity, amblyopia, and spherical equivalent were compared among the 3 groups. RESULTS: Of the total patients, 7 had strabismus preoperatively and 5 developed postoperative strabismus. Thus, a total of 12 patients had postoperative strabismus. Preoperatively, 5 patients had exotriopa and 2 patients had esotropia. Postoperatively, 9 patients had exotropia and 3 patients had esotropia. Exotropia was more common than esotropia. In comparison of the 3 groups, postoperative visual acuity was significantly low, and differences in visual acuity between normal eye and cataract eye were significantly larger in the Ortho/Strabismus group. There were no significant differences among the 3 groups in age at surgery, amblyopia, or spherical equivalent. CONCLUSIONS: In the patients with unilateral pediatric cataract, exotropia was the most common type. Because there is a high possibility of postoperative strabismus in patients who had lower postoperative visual acuity, careful observation is needed in these patients.
Key Words: Exotropia;Pediatric cataract;Strabismus;Unilateral cataract;Visual acuity

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