Results of research for correspondence of retinas in patients with concomitant strabismus in different division ways of visual fields

Purpose.  A  comparative  analysis  of  results  in  the  study  for  a correspondence  of  retinas  obtained  using  mechanical,  anaglyph  and raster conditions of separation of visual fields, taking  into account the objective and subjective angles of strabismus.Material and methods. There were i...

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Main Authors: S. I. Rychkova, V. G. Likhvantseva
Format: Article
Language:Russian
Published: Publishing house "Ophthalmology" 2020-04-01
Series:Офтальмохирургия
Subjects:
Online Access:https://www.ophthalmosurgery.ru/jour/article/view/592
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author S. I. Rychkova
V. G. Likhvantseva
author_facet S. I. Rychkova
V. G. Likhvantseva
author_sort S. I. Rychkova
collection DOAJ
description Purpose.  A  comparative  analysis  of  results  in  the  study  for  a correspondence  of  retinas  obtained  using  mechanical,  anaglyph  and raster conditions of separation of visual fields, taking  into account the objective and subjective angles of strabismus.Material and methods. There were in the study follow-up 240 patients with concomitant strabismus aged 6 to 17 (mean 10.8±0.24) years: with convergent strabismus – 190 patients, with divergent strabismus – 50 patients. All patients underwent a standard ophthalmological examination. In  the  complex  of  additional  orthoptic  examination  we  applied: determination  of  deviation  value  and  study  of  retinal  correspondence using the synoptophore by two methods: measurement of deviation value by means of prisms, study of retinal correspondence by means of classical (with raster separation of visual fields) Bagolini test and modified (with anaglyph separation of visual  fields) Bagolini  test. The deviation value using the synoptophore was determined in two ways: 1) using binocular conditions (both test objects are initially highlighted); 2) using monocular alternation. To determine  the value of deviation  in conditions as close as possible to the natural cover-uncover test and alternating cover-test with prisms was used.Results. It was  found  that  the value of deviation measured on  the synoptophore by the first method was comparable to the value of deviation determined using a cover-uncover test (t=1.74; p=0.083). The deviation measured on the synoptophore by the second method was comparable to  the  deviation  measured  using  the  alternating  cover  test  (t=0.89; p=0.37), exceeding the deviation value on the synoptophore by the first method and with the cover-uncover test by an average of 4.2±0.03°. In a comparative analysis of the results of the retinal correspondence study using different methods  separately under  the objective and  subjective angle  of  strabismus,  it was  detected  that  the  results  of  the  study  are comparable in most patients, and the difference observed in other cases reflects the influence of mechanical, anaglyphic or raster conditions for separating the visual fields.Conclusions. The results in the measurement of the strabismus angle obtained in the study using the synoptophore with binocular observation conditions (both test objects are initially highlighted) and using a coveruncover  test  with  prisms  can  be  comparable  and  characterize  the value of only  tropia without phoria. The results  in  the measurement of the strabismus angle obtained  in  the study on synoptophore using  the monocular alternation and using alternating cover-test with prisms, can also  be  comparable  and  characterize  in  both  cases  the  total  value  of the deviation of  the eye,  including both  tropia and phoria. The  results of  the  study of  retinal correspondence using mechanical, anaglyph or raster conditions  for a separation of visual  fields  in most patients are comparable,  but  if  it  is  a  subject  to  the  same  principles  of  projecting images to the central and peripheral areas of the retina.
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spelling doaj.art-fa8caef4bd1e447aaa4edf2b2656d1dd2023-01-20T12:34:49ZrusPublishing house "Ophthalmology"Офтальмохирургия0235-41602312-49702020-04-0101627010.25276/0235-4160-2020-1-62-70442Results of research for correspondence of retinas in patients with concomitant strabismus in different division ways of visual fieldsS. I. Rychkova0V. G. Likhvantseva1The Kharkevich  Institute  for   Information Transmission Problems of   the Russian Academy of  SciencesThe N.M.  Emanuel   Institute  for  Biochemical  Physics of   the Russian Academy of  Sciences; The A.I.  Burnazyan Federal  Biophysical  Center; The Academy of  Postgraduate EducationPurpose.  A  comparative  analysis  of  results  in  the  study  for  a correspondence  of  retinas  obtained  using  mechanical,  anaglyph  and raster conditions of separation of visual fields, taking  into account the objective and subjective angles of strabismus.Material and methods. There were in the study follow-up 240 patients with concomitant strabismus aged 6 to 17 (mean 10.8±0.24) years: with convergent strabismus – 190 patients, with divergent strabismus – 50 patients. All patients underwent a standard ophthalmological examination. In  the  complex  of  additional  orthoptic  examination  we  applied: determination  of  deviation  value  and  study  of  retinal  correspondence using the synoptophore by two methods: measurement of deviation value by means of prisms, study of retinal correspondence by means of classical (with raster separation of visual fields) Bagolini test and modified (with anaglyph separation of visual  fields) Bagolini  test. The deviation value using the synoptophore was determined in two ways: 1) using binocular conditions (both test objects are initially highlighted); 2) using monocular alternation. To determine  the value of deviation  in conditions as close as possible to the natural cover-uncover test and alternating cover-test with prisms was used.Results. It was  found  that  the value of deviation measured on  the synoptophore by the first method was comparable to the value of deviation determined using a cover-uncover test (t=1.74; p=0.083). The deviation measured on the synoptophore by the second method was comparable to  the  deviation  measured  using  the  alternating  cover  test  (t=0.89; p=0.37), exceeding the deviation value on the synoptophore by the first method and with the cover-uncover test by an average of 4.2±0.03°. In a comparative analysis of the results of the retinal correspondence study using different methods  separately under  the objective and  subjective angle  of  strabismus,  it was  detected  that  the  results  of  the  study  are comparable in most patients, and the difference observed in other cases reflects the influence of mechanical, anaglyphic or raster conditions for separating the visual fields.Conclusions. The results in the measurement of the strabismus angle obtained in the study using the synoptophore with binocular observation conditions (both test objects are initially highlighted) and using a coveruncover  test  with  prisms  can  be  comparable  and  characterize  the value of only  tropia without phoria. The results  in  the measurement of the strabismus angle obtained  in  the study on synoptophore using  the monocular alternation and using alternating cover-test with prisms, can also  be  comparable  and  characterize  in  both  cases  the  total  value  of the deviation of  the eye,  including both  tropia and phoria. The  results of  the  study of  retinal correspondence using mechanical, anaglyph or raster conditions  for a separation of visual  fields  in most patients are comparable,  but  if  it  is  a  subject  to  the  same  principles  of  projecting images to the central and peripheral areas of the retina.https://www.ophthalmosurgery.ru/jour/article/view/592strabismus, correspondence of retinas, deviation value
spellingShingle S. I. Rychkova
V. G. Likhvantseva
Results of research for correspondence of retinas in patients with concomitant strabismus in different division ways of visual fields
Офтальмохирургия
strabismus, correspondence of retinas, deviation value
title Results of research for correspondence of retinas in patients with concomitant strabismus in different division ways of visual fields
title_full Results of research for correspondence of retinas in patients with concomitant strabismus in different division ways of visual fields
title_fullStr Results of research for correspondence of retinas in patients with concomitant strabismus in different division ways of visual fields
title_full_unstemmed Results of research for correspondence of retinas in patients with concomitant strabismus in different division ways of visual fields
title_short Results of research for correspondence of retinas in patients with concomitant strabismus in different division ways of visual fields
title_sort results of research for correspondence of retinas in patients with concomitant strabismus in different division ways of visual fields
topic strabismus, correspondence of retinas, deviation value
url https://www.ophthalmosurgery.ru/jour/article/view/592
work_keys_str_mv AT sirychkova resultsofresearchforcorrespondenceofretinasinpatientswithconcomitantstrabismusindifferentdivisionwaysofvisualfields
AT vglikhvantseva resultsofresearchforcorrespondenceofretinasinpatientswithconcomitantstrabismusindifferentdivisionwaysofvisualfields