Cyclic strabismus is a rare condition that usually occurs in children and is characterized by alternating intervals of straight and strabismic eyes. In adults with the condition, strabismus surgery often eliminates the cycles. We report a case of adult-onset cyclic esotropia that was converted into a cyclic exotropia.
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Successful prism treatment for cyclic esotropia: A case report.
Am J Ophthalmol Case Rep
June 2024
Department of Ophthalmology, Asahikawa Medical University, Asahikawa, Japan.
Purpose: To report a case of cyclic esotropia successfully treated with prismatic correction.
Observations: A 9-year-old girl presented with intermittent esotropia and diplopia occurring over the previous 4 months. The patient had 30 prism diopters (PD) of esotropia at both distance and near.
Yokoyama procedure for cyclic strabismus with axial high myopia:a case report.
BMC Ophthalmol
December 2023
Department of Ophthalmology, the Central Hospital of Enshi Tujia and Miao Autonomous Prefecture, Enshi Clinical College of Wuhan University, 445000, Enshi, Hubei Province, China.
Background: It is a very rare form of ocular motility characterized by alternating strabismus and orthotropia. We report a patient with a 48-h cycle of esohypotropia associated with axial high myopia that resolved by Yokoyama procedure.
Case Presentation: A 43-year-old female patient who underwent left medial rectus muscle recession and lateral rectus muscle resection elsewhere due to highly myopic strabismus 2 years ago.
Resolution of cyclic esotropia with 5-year follow-up after brief Fresnel prism treatment.
J AAPOS
February 2024
W. K. Kellogg Eye Center, Ann Arbor, Michigan.
Cyclic esotropia is a rare form of strabismus that is characterized by a recurring esotropic deviation, usually with a 48-hour cycle. On esotropic days, the patient has a constant deviation with suppression, followed by a day with straight eyes and good binocular function. We report a case of cyclic esotropia in which the cycling resolved with 2 months of Fresnel prism for the amount of the distance deviation on her "straight" days.
View Article and Find Full Text PDFAchromatopsia: Long term visual performance and clinical characteristics.
Eur J Ophthalmol
July 2024
Faculty of Medicine, Hebrew University of Jerusalem, Israel.
Background: Achromatopsia is an autosomal recessive cone dysfunction syndrome, characterized by absence of color discrimination, low visual acuity, photophobia, and nystagmus. Achromatopsia constitutes a common cause of visual impairment in children, with a prevalence of 1:30,000 worldwide.
Objective: To characterize the clinical characteristics of achromatopsia, the main genes causing the disease in our population and the clinical course of the disease, with an emphasis on visual function stability with increasing age.
Cyclic Esotropia Managed With Botulinum A Toxin Injections: A Report of Four Cases and Literature Review.
Cureus
September 2023
Pediatric Ophthalmology and Adult Strabismus, Dhahran Eye Specialist Hospital, Dhahran, SAU.
Cyclic strabismus is a rare entity and is unique in that patients follow variable but reliable time cycles where they alternate between orthotropia or "straight" eyes and strabismus, most commonly in the form of esotropia. Despite many theories on the underlying etiology and unique features of this diagnosis, none have been proven and its pathophysiology remains unknown. Four cases of cyclic esotropia diagnosed by pediatric ophthalmologists have been included in this report.
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