Abstract

Volume.119 Number.9

Original article : Clinical science

Long Term Follow-up of Age-related Strabismus Patients 50 Years-old and Over
Akihiko Oohira1,2
1 Wakaba Eye Hospital
2 Department of Ophthalmology, Tokyo Women's Medical University

Purpose: To characterize age-related strabismus by long term observation.
Methods: Clinical Characteristics were collected at two institutions from patients 50 years-old and over with age-related strabismus, who complained of diplopia and were followed up longer than 2 years without surgical intervention.
Results: The cohort consisted of one case of near exotropia (convergence insufficiency, exotropia angle at near was 11.3°), eight cases of distance esotropia (divergence insufficiency, average esotropia angle at distance was 5.8°), and 15 cases of hypertropia (average hypertropia angle at distance was 3.6°). In 14 patients more than one year passed from the onset of diplopia to date of visiting one of the two clinics. The strabismus angle slowly increased (0.3° per year in average; Wicoxon signed-rank test, p<0.01). 17 patients successfully used prism incorporated glasses. Diplopia was intermittent at first and became more frequent in most cases. Hypertropic patients often showed extorsion of the lower eye.
Conclusion: Age-related strabismus eyes slowly develop diplopia and very slowly get worse in deviation angle. Prism incorporated glasses are useful in this condition.
Nippon Ganka Gakkai Zasshi (J Jpn Ophthalmol Soc) 119: 619-624, 2015.

Key words
Age-related strabismus, Decompensated phoria, Divergence insufficiency, Hypertropia, Phoria adaptation
Reprint requests to
Akihiko Oohira, M.D. Wakaba Eye Hospital. 4-22-11 Kamata, Ohta-ku, Tokyo 144-0052, Japan