Affiliation:
1. University Hospital of Wales
Abstract
Abstract
Background/Objectives
A national study was undertaken through the British ophthalmology surveillance unit (BOSU) to determine the incidence presenting features and management of essential infantile esotropia (EIE) in the UK
Methods
Data from a prospective national observational study of newly diagnosed EIE presenting to clinicians in the United Kingdom over a 12-month period was collected. Cases with a confirmed diagnosis by a clinician of a constant, non-accommodative esotropia ≥ 20 prism dioptres (PD), presenting at ≤ 12months, with no neurological or ocular abnormalities were identified through BOSU. Follow up data was collected at 12 months.
Results
A total of 57 cases were reported giving an incidence of EIE of 1 in 12,828 live births. The mean age of diagnosis and intervention were 7.05 ± 2.6 months (range 2 to 12 months) and 14.7 ± 4.9 (range 6.5–28.1 months) respectively. Management was surgical in 59.6%, and botulinum toxin alone in 22.8%, 17.5% were observed. The preoperative angle of esotropia was smaller in the observation group (P = 0.04). The post-operative angle of esotropia was not statistically significant between botulinum toxin or surgery (P = 0.3) though the age of intervention was earlier in the botulinum group (P = 0.007). Early intervention did not influence the motor post intervention outcomes between 0–10 prism dioptres of esotropia (P = 0.78).
Conclusions
The incidence of EIE in the UK is considerably lower than reported in other population-based studies. The preferred method of treatment was surgical with earlier intervention in those treated with botulinum toxin. An early age of intervention did not influence motor outcomes.
Publisher
Research Square Platform LLC