Table 1: Clinical characteristics of patients with acute acquired comitant esotropia.

Patient numberSexAge (years)Duration of symptomsPresenting complaintSignVisionDeviation (PD)Neurological examinationInvestigationsTreatmentSurgical interventionPrism glassesFollow-up (years)Outcome
RELEDN

1M326 monthsDiplopiaRight esotropia
1.01.04040NormalCranial and orbital MRI: normal
Tensilon test: negative
SurgeryRE MR Rc 5.5 mm, RE LR Re 6.5 mm8No manifest deviation

2M2910 monthsDiplopiaRight esotropia1.01.01816NormalCranial and orbital MRI: normal
Tensilon test: negative
Prism16 PD BO
Ground-in
Both eyes
9No manifest deviation with prism

3M4312 monthsDiplopiaLeft esotropia1.01.03540NormalCranial and orbital MRI: normal
Single fiber EMG: negative
Acetylcholine receptor ab: negative
Botulinum toxin injections2No manifest deviation after botulinum toxin injections

4M234 monthsDiplopiaRight esotropia1.01.04545NormalCranial and orbital MRI: normal
Single fiber EMG: negative
Acetylcholine receptor ab: negative
Refused any treatment2No change

5F4318 monthsDiplopiaLeft esotropia
1.01.03025NormalCranial and orbital MRI: normal
Single fiber EMG: negative
SurgeryLE MR Rc 5.0 mm, LE LR Re 5.5 mm6Intermittent
6 pd left esotropia

6F2015 daysDiplopia
Headache
Right esotropia1.01.02020NormalCranial and orbital MRI: simple pineal cyst
Cranial MR angiography: normal
Single fiber EMG: negative
Prism20 PD BO
Ground-in
Both eyes
4No manifest deviation with prism

7F221 monthsDiplopiaLeft esotropia
1.01.02525NormalCranial and orbital MRI: normal
Tensilon test: negative
SurgeryLE MR Rc 4.0 mm, LE LR Re 5.5 mm3No manifest deviation

8F326 monthsDiplopiaLeft esotropia1.01.01618NormalCranial and orbital MRI: normal
Tensilon test: negative
Acetylcholine receptor ab: negative
Prism16 PD BO
Ground-in
Both eyes
2No manifest deviation with prism

9F2710 daysDiplopiaLeft esotropia1.01.04035NormalCranial and orbital MRI: normal
Single fiber EMG: negative
SurgeryLE MR Rc 5.5 mm, LE LR Re 6.5 mm1No manifest deviation

F: female, M: male, RE: right eye, LE: left eye, PD: prism diopters, D: distance, N: near, MRI: magnetic resonance imaging, EMG: electromyography, ab: antibody, MR: medial rectus, LR: lateral rectus, Rc: recession, Re: resection, and BO: base-out.