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Year : 2020  |  Volume : 68  |  Issue : 10  |  Page : 2196-2198

Ocular structural changes in patients with Duane retraction syndrome: Does a correlation exist?

1 Child Sight Institute, Jasti V Ramanamma Children's Eye Care Center, L. V. Prasad Eye Institute, Kallam Anji Reddy Campus, Hyderabad, Telangana, India
2 Child Sight Institute, Jasti V Ramanamma Children's Eye Care Center, And Brien Holden Institute Optometry and Vision Sciences, L V Prasad Eye Institute, KAR Campus, Hyderabad, Telangana, India
3 Smt. Kanuri Santhamma Centre for Vitreoretinal Diseases, L V Prasad Eye Institute, KAR Campus, Hyderabad, Telangana, India
4 Child Sight Institute, Nimmagada Prasad Children's Eye Care Centre, L V Prasad Eye Institute, GMRV Campus, Visakhapatnam, Andhra Pradesh, India

Correspondence Address:
Dr. Ramesh Kekunnaya
Child Sight Institute, Jasti V Ramanamma Childrenfs Eye Care Center, Kallam Anji Reddy Campus, L. V. Prasad Eye Institute, Hyderabad, Telangana - 500 034
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/ijo.IJO_123_20

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Purpose: The purpose of this study was to investigate the structural changes (axial length, central macular thickness (CMT), subfoveal choroidal thickness, and keratometry) in subjects with unilateral Duane retraction syndrome (DRS) as compared with the normal fellow eye. Methods: In this prospective study, we included 34 subjects with unilateral DRS from January 2016 to December 2016 seen at our institute. Data was collected for axial length, keratometry using partial coherence interferometry, CMT, subfoveal choroidal thickness using the enhanced depth imaging-optical coherence tomography (EDI-OCT). All these measurements were compared between the affected and fellow eye. Results: During this period, we included 34 subjects with unilateral DRS (22 Type I, 1 Type II, and 11 Type III). The mean age (±SD) of subjects was 14 ± 8 years (range: 5–28 years). There were 15 males and 19 females. Eyes with DRS were significantly shorter (median axial length 22.4 mm, interquartile range (IQR): 21.56 - 23.17) as compared to fellow eye (median axial length 22.7 mm, IQR: 22.35-23.55), P = 0.04. Choroidal thickness, CMT, and average keratometry were similar in DRS and fellow eyes (P = 0.39, 0.06, and 0.11, respectively). A significant difference in axial length was found only between Type I and Type III DRS (P = 0.03). Conclusion: This study suggests that in subjects with DRS, the affected eye has shorter median axial length when compared with the fellow eye. Prevalence of refractive error in eye with DRS was higher compared to fellow eye. But, there was no difference in magnitude of refractive error found between eye with DRS and normal fellow eye.

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