Large Refractive Change After Strabismus Surgery

Reynolds, R D; Nelson, Leonard B; Greenwald, Mark J.

doi:10.1016/s0002-9394(14)72327-x

Cited by 14 publications

(12 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…With-the-rule astigmatism after horizontal rectus muscle surgery was frequently observed, but most studies considered the mean change in astigmatism through evaluating corneal astigmatic changes using a keratometer or corneal topography [2,7,10,11,14-18], or refractive changes in the horizontal and vertical meridional equivalents [4-6,8,9,11,15,18-22] and described a transient change. Power vector analysis has independence of those 3 components and a benefit of accounting for the directional effect of astigmatism.…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Astigmatic Changes after Horizontal Rectus Muscle Surgery in Intermittent Exotropia

Hong

Kang

2012

Korean J Ophthalmol

View full text Add to dashboard Cite

PurposeTo evaluate the changes of refractive astigmatism after horizontal rectus muscle surgery in intermittent exotropic children.MethodsSixty-nine exotropic patients were retrospectively reviewed. Of those, 35 patients received unilateral lateral rectus recession (BLR group, 35 eyes) and 34 patients received unilateral lateral rectus recession and medial rectus resection (R&R group, 34 eyes). Non-cycloplegic refractions were measured until 6 months postoperatively. Spherical equivalent (SE), J0 and J45 using power vectors were calculated to determine and compare the changes of refractive astigmatism and axis in both groups.ResultsSE significantly decreased after surgery for the first week and did not changed thereafter in both groups (p = 0.000 and p = 0.018, respectively). In BLR group, J0 showed significant changes at the first week and 1 month after surgery (p = 0.005 and p = 0.016, respectively), but in R&R group, J0 changed significantly between 1 week and 3 months postoperatively (p = 0.023 and p = 0.016, respectively). J45 did not change significantly as time passed in both groups (all p > 0.05). There was no statistically significant difference in the magnitude of changes in SE, J0 and J45 between the two groups after the 6-month follow-up (p = 0.500, p = 0.244 and p = 0.202, respectively).ConclusionsHorizontal rectus muscle surgery in intermittent exotropic children tends to induce a statistically significant change in astigmatism in the with-the-rule direction and myopic shift in SE. This astigmatism change seems to occur within the first 3 months after surgery. Thus, astigmatism induced by surgery should be checked and corrected at least 3 months after horizontal strabismus surgery.

show abstract

Section: Discussionmentioning

confidence: 99%

“…Some reports found that spherical equivalent either did not change [1,2], changed into myopic direction [3], or in a hypermetropic direction [4]. Others reported long term [4-6] and significant refractive changes [1,7-9]. Most of the studies reported that these changes were transient [7-9] and non-significant [3,8].…”

mentioning

confidence: 99%

Astigmatic Changes after Horizontal Rectus Muscle Surgery in Intermittent Exotropia

Hong

Kang

2012

Korean J Ophthalmol

View full text Add to dashboard Cite

show abstract

“…Kwitko and colleagues 116 found that surgery on rabbit EOM's caused significant changes in corneal topography in some cases. There have also been several reports of highly significant changes in astigmatism [117][118][119][120][121] and corneal topography 122,123 following surgery for strabismus in human subjects.…”

Section: Astigmatism and Extraocular Musclesmentioning

confidence: 99%

A review of astigmatism and its possible genesis

Read

Collins

Carney

2007

Clinical and Experimental Optometry

233

205

View full text Add to dashboard Cite

Astigmatism is a refractive condition encountered commonly in clinical practice. This review presents an overview of research that has been carried out examining various aspects of this refractive error. We examine the components of astigmatism and the research into the prevalence and natural course of astigmatic refractive errors throughout life. The prevalence of astigmatism in various ethnic groups and diseases and syndromes is also discussed. We highlight the extensive investigations that have been conducted into the possible aetiology of astigmatism, however, no single model or theory of the development of astigmatism has been proven conclusively. Theories of the development of astigmatism based on genetics, extraocular muscle tension, visual feedback and eyelid pressure are considered. Observations and evidence from the literature supporting and contradicting these hypotheses are presented. Recent advances in technology such as wavefront sensors and videokeratoscopes have led to an increased understanding of ocular astigmatism and with continued improvements in technology, our knowledge of astigmatism and its genesis should continue to grow.

show abstract

“…Reynolds stellte 1991 in einer Einzelfalldarstellung em zweijahriges Kind mit einem Fibrosesyndrom vor, dessen Augen im Abblick fixiert waren und das einen hohen Astigmatismus rectus aufwies (19)…”

Section: Altereunclassified

“…Zusarnmenfassend fanden wir nur geringe und vor-Anderungen der Hornhautwolbung nach Strabismusoperationen. Unmittelbar postoperativ zeigten sich nur bezuglich der kombinierten horizontalen Operationen im Trend Parallelen zu der Hypothese, daB es im Quadranten der RUcklagerung zu einer Aufsteilung und irn Quadranten der Resektion zu einer Abflachung der Hornhaut komrnen kann (10,11,19). Langfristig waren keine signifikanten Anderungen erkennbar.…”

Section: Abflachung Der Hornhaut Im Semimeridian Derunclassified