J Korean Ophthalmol Soc > Volume 57(9); 2016 > Article
Journal of the Korean Ophthalmological Society 2016;57(9):1435-1440.
DOI: https://doi.org/10.3341/jkos.2016.57.9.1435    Published online September 15, 2016.
The Clinical Features and the Prognosis of Functional Visual Loss in Children.
Soo Hyun Lee, Kyung Sub Shin, Yeon Hee Lee
1Department of Ophthalmology, Chungnam National University School of Medicine, Daejeon, Korea. opticalyh@hanmail.net
2Research Institute for Medical Sciences, Chungnam National University, Daejeon, Korea.
소아 기능성 시력저하 환자의 임상양상과 예후
충남대학교 의과대학 안과학교실1, 충남대학교 의학연구소2
Correspondence:  Yeon-Hee Lee, MD, PhD
Email: opticalyh@hanmail.net
Received: 21 April 2016   • Revised: 29 June 2016   • Accepted: 12 August 2016
To evaluate the clinical characteristics and prognoses of children with functional visual loss. METHODS: Retrospective medical record review was performed in 53 patients 4 to 16 years of age diagnosed with functional visual loss between April 2006 and February 2014. We investigated the clinical features and results of clinical tests and the final status of the patients. RESULTS: Twenty male (37.8%) and 33 female (62.2%) patients were included in the study. The mean age was 9.69 ± 2.76 years. The incidence was highest between 8 to 12 years. The mean best corrected visual acuity at baseline was 0.43 ± 0.23, and 88.7% of patients had mild to moderate visual loss. The symptoms were bilateral in 96.2% of patients, and the difference of corrected visual acuity between two eyes was 1 line or less on Snellen chart in 94.1% of bilateral cases. The symptoms were resolved by 1.8 ± 1.0 months in 59.5% of patients and resolved by the final follow-up visit in 51 (96.2%). However, the symptoms persisted through the final follow-up in 2 patients. CONCLUSIONS: Most children with functional visual loss have bilateral and mild to moderate visual loss. The prognosis of functional visual loss in children was excellent. Most patients recovered from the disease with reassurance supportive care without psychiatric treatment, although a few patients had persistent symptoms.
Key Words: Functional visual loss;Non-organic visual loss;Psychogenic visual loss

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