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Anterior scleral thickness in patients of central serous chorioretinopathy: A Case–control study
Tanmay Mohapatra1, Hemant Singh Trehan2, Raji Kurumkattil3, Radhika Gupta4, Yogesh Yadav5, Prakhar Kumar Singh6
1 Department of Ophthalmology, Army Hospital (Research and Referral), New Delhi; Department of Ophthalmology, Military Hospital, Wellington, Wellington, Tamil Nadu, India
2 Department of Ophthalmology, Army Hospital (Research and Referral), New Delhi; Department of Ophthalmology, Command Hospital Air Force, Bengaluru, Karnataka, India
3 Department of Ophthalmology, Army Hospital (Research and Referral), New Delhi; Command Hospital (Central Command), Lucknow, Uttar Pradesh, India
4 Department of Ophthalmology, Army Hospital (Research and Referral), New Delhi; Department of Ophthalmology, Military Hospital, Jammu, Jammu and Kashmir, India
5 Department of Ophthalmology, Army Hospital (Research and Referral), New Delhi; Department of Anterior Segment, Nirmal Eye Institute, Rishikesh, Uttarakhand, India
6 Department of Ophthalmology, Army Hospital (Research and Referral); Department of Ophthalmology, Shroff Charitable Eye Hospital, New Delhi, India
Correspondence Address:
Tanmay Mohapatra
Department of Ophthalmology, Military Hospital Wellington, Wellington - 643 231, Tamil Nadu
India
 Source of Support: None, Conflict of Interest: None  | Check |
DOI: 10.4103/ojo.ojo_3_22
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BACKGROUND: The aim of this study was to determine whether anterior scleral thickness (AST) varies significantly between patients with central serous chorioretinopathy (CSCR) versus normal individuals. To validate scleral thickness measurements by ultrasound biomicroscopy (UBM) vis a vis anterior segment optical coherence tomography (ASOCT).
METHODS: This case–control study analyzed 50 eyes of 50 patients with CSCR (cases) and compared it with that of 50 eyes of 50 age- and gender-matched controls. In cases, AST was measured at 1 mm and 2 mm temporal to the temporal scleral spur by ASOCT and UBM. In controls, AST was measured only by ASOCT. In all participants, posterior choroidal thickness (CT) was measured subfoveally, 1 mm nasal and 1 mm temporal to fovea by enhanced depth imaging optical coherence tomography.
RESULTS: The mean AST, as measured by ASOCT among cases and controls was 703.86 μm and 667.54 μm, respectively (P = 0.006). The mean AST by ASOCT and UBM in cases were 703.86 μm and 657.42 μm, respectively (P = 0.001). AST measurement by ASOCT and UBM showed a positive and statistically significant correlation (r = 0.431, P = 0.000). The mean CT among cases and controls was 443.56 μm and 373.88 μm, respectively (P = 0.000). We found a weak positive correlation (r = 0.11) in cases and weaker positive correlation in controls, between CT and AST measured by ASOCT.
CONCLUSIONS: Our findings suggest that AST varies significantly between patients with CSCR versus normal individuals. We found poor agreement of AST when measured by ASOCT and UBM.
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