Investigation, treatment and prognosis : similar like other accommodative esotropias.
Cyclic strabismus is a rare type of esodeviation and classically a large-angle esotropia alternating with ortophoria or small –angle deviation on 48-hour cycle.(Fig.11,12)
Fig.11 Small angle deviation on the 4-month-old child with cyclic esotropia.
Fig.12 The same patient on altenating day.with cyclic esotropia in the right eye
This is the rare condition occurs in older children or adults witch characterized by the dramatic onset of the large angle esotropia with diplopia. Fig.13
Fig.13 A 10-year- old girl with acute acquired esotropia in the left eye.
mild hyperopic or myopic refractive error(from-5,5 to +3,0)
concomitant strabismus in all direction of gaze
strabismus is usually large 30-60PD
patients can fuse if the angle is eliminated with prism
absence of any neurologic disease