Correlation of pattern of visual field loss by perimetry and anterior chamber angle parameters by anterior segment optical coherence tomography in primary angle-closure glaucoma

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dc.contributor.authorPalanisamy, Sreeramyaaen_US
dc.contributor.authorRaja, Vidyaen_US
dc.contributor.authorSenthilkumar, Vijayalakshmi Aen_US
dc.contributor.authorMani, Iswaryaen_US
dc.contributor.authorKrishnadas, Ren_US
dc.date.accessioned2023-08-25T06:34:07Z
dc.date.available2023-08-25T06:34:07Z
dc.date.issued2022-08
dc.description.abstractPurpose: To correlate and analyze the pattern of the visual field (VF) defects by perimetry and anterior chamber angle parameters by AS-OCT in primary angle-closure glaucoma (PACG) across varied severity levels on presentation to a tertiary eye care center. Methods: This was a cross-sectional study, which included 323 eyes of clinically diagnosed cases of PACG. Glaucoma severity was categorized according to mean deviation (MD) as mild (-6.00 dB or more), moderate (-6.01 to -12.00 dB), and severe (-12.01 to -30.00 dB). AS-OCT measured the nasal (N) and temporal (T) angle opening distance at 500 ?m (AOD 500) and 750 ?m (AOD 750), anterior chamber angle (ACA), lens vault (LV), and anterior chamber width (ACW). The VF severity was then correlated with the AS-OCT parameters using statistical analysis. Results: The mean age ± standard deviation (SD) of the patients included in the study was 56.03 ± 8.6 years, with a 1:1.2 gender ratio. The number of eyes with mild, moderate, and severe VFs were 140 (43.3%), 88 (27.24%), and 95 (29.41%), respectively. There was no statistically significant correlation in the mean anterior chamber angle parameters (AOD 500, AOD 750, ACA 500, ACA 750, LV, ACW, and axial length (AL)) among the groups. However, the correlation between AOD 500 and LV thickness was found to be significant (P = 0.0000) with a negative Spearman’s rank correlation coefficient (r = -0.3329). Conclusion: The ACA parameters obtained by AS-OCT along the horizontal axis after elimination of pupillary block by laser peripheral iridotomy do not correlate and cannot be used to assess the disease severity of PACGen_US
dc.identifier.affiliationsDepartment of Glaucoma, Aravind Eye Hospital and Postgraduate Institute of Ophthalmology, Tamilnadu, Indiaen_US
dc.identifier.affiliationsBiostatistics, Aravind Eye Hospital and Postgraduate Institute of Ophthalmology, Tamilnadu, Indiaen_US
dc.identifier.citationPalanisamy Sreeramyaa, Raja Vidya, Senthilkumar Vijayalakshmi A, Mani Iswarya, Krishnadas R . Correlation of pattern of visual field loss by perimetry and anterior chamber angle parameters by anterior segment optical coherence tomography in primary angle-closure glaucoma. Indian Journal of Ophthalmology. 2022 Aug; 70(8): 2895-2901en_US
dc.identifier.issn1998-3689
dc.identifier.issn0301-4738
dc.identifier.placeIndiaen_US
dc.identifier.urihttps://imsear.searo.who.int/handle/123456789/224512
dc.languageenen_US
dc.publisherAll India Ophthalmological Societyen_US
dc.relation.issuenumber8en_US
dc.relation.volume70en_US
dc.source.urihttps://doi.org/10.4103/ijo.IJO_232_22en_US
dc.subjectAnterior chamber angle parametersen_US
dc.subjectAS-OCTen_US
dc.subjectmean deviationen_US
dc.subjectprimary angle-closure glaucomaen_US
dc.subjectvisual field defectsen_US
dc.titleCorrelation of pattern of visual field loss by perimetry and anterior chamber angle parameters by anterior segment optical coherence tomography in primary angle-closure glaucomaen_US
dc.typeJournal Articleen_US
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