Acquired cyclic exotropia and hypotropia

Cyclic exotropia in a child

“…Our patient did not have evidence of any intraocular structural abnormalities such as those reported in the adult patients with cyclic exotropia. 2,4 Although she demonstrated small amplitude jerklike nystagmus waveforms on eye movement recording, our patient did not demonstrate nystagmus, which was noticeable on examination or suggestive of structural abnormality. Similar to the adult patient reported by Garg and Archer, 3 our patient developed cyclic exotropia after surgery to correct esotropia.…”

“…1 Of the types of cyclic strabismus, cyclic esotropia has been reported most often; there have been few reports of alternate-day exotropia in children. [2][3][4][5] Most cases of cyclic esotropia have been idiopathic and in children. Adult-onset cyclic esotropia has been reported with optic atrophy, unilateral traumatic aphakia, traumatic sixth nerve palsy, retinal detachment surgery, strabismus surgery, and central nervous system disease.…”

“…Adult-onset cyclic esotropia has been reported with optic atrophy, unilateral traumatic aphakia, traumatic sixth nerve palsy, retinal detachment surgery, strabismus surgery, and central nervous system disease. 2,6 Cyclic vertical deviations have been reported with ocular myositis 7 and after craniofacial surgery. 8 Garg and Archer 3 reported cyclic exotropia in a 57-year-old woman following surgery for cyclic esotropia.…”

Cyclic (alternate day) vertical deviation—possible forme fruste of ocular neuromyotonia

“…Reports have been published of cyclic deviations in association with unilateral aphakia, 10 optic atrophy, 11 fibrous dysplasia, 12 retinitis pigmentosa, 13 ocular myositis, 14 thyroid eye disease, 15 traumatic abducens nerve palsy, 16 and following retinal detachment surgery, 17 trabeculectomy, 18 and strabismus surgery. [19][20][21][22][23] The cycles are usually in 24-hour increments, with a 48-hour cycle being the most common, although 36-, 72-, and 96-hour cycles have been reported. [3][4][5]11,19 In the classic, 48-hour cycles, strabismus is present for 24 hours and absent for the next 24 hours.…”

“…[19][20][21][22][23] The cycles are usually in 24-hour increments, with a 48-hour cycle being the most common, although 36-, 72-, and 96-hour cycles have been reported. [3][4][5]11,19 In the classic, 48-hour cycles, strabismus is present for 24 hours and absent for the next 24 hours. In cyclic vertical deviations, especially in adults, there is often an underlying visual deficit associated with the cycle or an ocular motility abnormality that persists as a baseline defect on the least diplopic day.…”