Monofixation syndrome (MFS) (also: microtropia or microstrabismus) is an eye condition defined by less-than-perfect binocular vision.[1] It is defined by a small angle deviation with suppression of the deviated eye and the presence of binocular peripheral fusion.[2] That is, MFS implies peripheral fusion without central fusion.
Aside the manifest small-angle deviation ("tropia"), subjects with MFS often also have a large-angle latent deviation (phoria). Their stereoacuity is often in the range of 3000 to 70 arcsecond, and a small central suppression scotoma of 2 to 5 deg.[3]
A rare condition, MFS is estimated to affect only 1% of the general population. There are three distinguishable forms of this condition: primary constant, primary decompensating and consecutive MFS. It is believed that primary MFS is a result of a primary sensorial defect, predisposing to anomalous retinal correspondence.[4]
Secondary MFS is a frequent outcome of surgical treatment of congenital esotropia.[2] A study of 1981 showed MFS to result in the vast majority of cases if surgical alignment is reached before the age of 24 months and only in a minority of cases if it is reached later.[5]
^ abGuthrie ME, Wright KW (September 2001). "Congenital esotropia". Ophthalmol Clin North Am. 14 (3): 419–24, viii. doi:10.1016/S0896-1549(05)70239-X. PMID 11705141.
^ abKenneth Weston Wright; Peter H. Spiegel (January 2003). Pediatric Ophthalmology and Strabismus. Springer Science & Business Media. p. 174. ISBN978-0-387-95478-3.
^M.R. Ing (1961). "Early surgical alignment for congenital esotropia". Transactions of the American Ophthalmological Society (79): 625–663. Cited according to: Myron Yanoff; Jay S. Duker; James J. Augsburger (2009). Ophthalmology. Elsevier Health Sciences. p. 1323. ISBN978-0-323-04332-8.
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January 01, 1970
monofixation, syndrome, also, microtropia, microstrabismus, condition, defined, less, than, perfect, binocular, vision, defined, small, angle, deviation, with, suppression, deviated, presence, binocular, peripheral, fusion, that, implies, peripheral, fusion, w. Monofixation syndrome MFS also microtropia or microstrabismus is an eye condition defined by less than perfect binocular vision 1 It is defined by a small angle deviation with suppression of the deviated eye and the presence of binocular peripheral fusion 2 That is MFS implies peripheral fusion without central fusion Monofixation syndromeOther namesMicrotropia microstrabismusSpecialtyOphthalmology Optometry Aside the manifest small angle deviation tropia subjects with MFS often also have a large angle latent deviation phoria Their stereoacuity is often in the range of 3000 to 70 arcsecond and a small central suppression scotoma of 2 to 5 deg 3 A rare condition MFS is estimated to affect only 1 of the general population There are three distinguishable forms of this condition primary constant primary decompensating and consecutive MFS It is believed that primary MFS is a result of a primary sensorial defect predisposing to anomalous retinal correspondence 4 Secondary MFS is a frequent outcome of surgical treatment of congenital esotropia 2 A study of 1981 showed MFS to result in the vast majority of cases if surgical alignment is reached before the age of 24 months and only in a minority of cases if it is reached later 5 MFS was first described by Marshall Parks 3 References edit Monofixation Syndrome eMedicine Ophthalmology 2017 01 07 a href Template Cite journal html title Template Cite journal cite journal a Cite journal requires journal help a b Guthrie ME Wright KW September 2001 Congenital esotropia Ophthalmol Clin North Am 14 3 419 24 viii doi 10 1016 S0896 1549 05 70239 X PMID 11705141 a b Kenneth Weston Wright Peter H Spiegel January 2003 Pediatric Ophthalmology and Strabismus Springer Science amp Business Media p 174 ISBN 978 0 387 95478 3 Lang J 1983 Microtropia Int Ophthalmol 6 1 33 6 doi 10 1007 BF00137371 PMID 6826290 M R Ing 1961 Early surgical alignment for congenital esotropia Transactions of the American Ophthalmological Society 79 625 663 Cited according to Myron Yanoff Jay S Duker James J Augsburger 2009 Ophthalmology Elsevier Health Sciences p 1323 ISBN 978 0 323 04332 8 External links edit Retrieved from https en wikipedia org w index php title Monofixation syndrome amp oldid 1137248037, wikipedia, wiki, book, books, library,
