Article Sidebar

pdf
Date Published: 10/04/2024
Abstract Views: 62
Views pdf: 41
DOI: https://doi.org/10.51298/vmj.v537i1B.9132
Issue
Vol. 537 No. 1B (2024)
Section
Các bài báo
How to Cite
Đoàn, K. T., Lê, M. T., Nguyễn, M. T., & Trần, T. T. C. (2024). PREDICTING THE OUTCOME OF LASER PERIPHERAL IRIDOTOMY FOR PRIMARY ANGLE CLOSURE SUSPECT EYES USING ANTERIOR SEGMENT OPTICAL COHERENCE TOMOGRAPHY. Vietnam Medical Journal, 537(1B). https://doi.org/10.51298/vmj.v537i1B.9132

PREDICTING THE OUTCOME OF LASER PERIPHERAL IRIDOTOMY FOR PRIMARY ANGLE CLOSURE SUSPECT EYES USING ANTERIOR SEGMENT OPTICAL COHERENCE TOMOGRAPHY

Kim Thành Đoàn, Minh Tuấn Lê, Minh Toàn Nguyễn, Thị Trúc Chi Trần

Main Article Content

Abstract

Purpose: Predicting the outcome of laser peripheral iridotomy for primary angle closure suspect eyes using anterior segment optical coherence tomography. Methods: Cross-sectional study. The study was done from June 2023 to December 2023 at HCMC Eye Hospital. A total of 66 eyes of 34 study participants were diagnosed with suspected primary angle closure, of which 32 had 2 eyes and 2 had 1 eye and had anterior optical coherence tomography and periorbital iridectomy performed. laser border. Patients were examined and epidemiological parameters were recorded including age, gender, visual acuity, intraocular pressure, central corneal thickness, cup/disc ratio and anterior chamber angle parameters. Results: The average age was 55.68 ±7.6 years. The male: female ratio is 1:10.5 respectively. Visual acuity in the group ≥ 3/10 accounts for 89.39%. The average intraocular pressure was 15.09 ± 3.05. Central corneal thickness has an average value of 537.85 ± 29.42. The average cup/disc ratio is 0.37 ± 0.20. The anterior chamber angle parameters AOD500, AOD750, TISA500, TISA750, ACD all increased while IT500, IT750, IC, IC ratio and LV tended to decrease and these changes were all statistically significant. The parameters AOD500, AOD750, TISA750, LV, ACD are meaningful in predicting the successful results of laser peripheral iridectomy. The algorithm predicted the success of LPI with 87,90 % cross validation accuracy. Conclusion: Patients in the study had age, male: female ratio, visual acuity, intraocular pressure value and cup/disc ratio consistent with the definition of suspected primary angle closure. Patients need to be examined and detected, and have optical coherence tomography of the anterior segment performed to have more information to choose appropriate treatment methods to prevent acute angle closure attacks and prevent progression of primary angle closure.

Article Details

Keywords

Suspected primary angle closure (PACS), acute angle closure (AAC), primary angle closure (PAC), visual acuity, intraocular pressure, age, gender, central corneal thickness, cup/ disc.

References

1. Đào Thị Phương Linh, (2017), "Đánh giá sự thay đổi cấu trúc góc tiền phòng sau Laser cắt mống mắt chu biên ở bệnh nhân góc tiền phòng hẹp bằng siêu âm sinh hiển vi", Y học Thành phố Hồ Chí Minh, 21 (3), tr. 86-96.
2. Sun X, Dai Y, Chen Y, Yu DY, Cringle SJ, Chen J, Kong X, Wang X, Jiang C (2017). Primary angle closure Glaucoma: What we know and what we don't know. Prog Retin Eye Res. 57:26-45
3. George R, Panda S, Vijaya L (2022). “Blindness in Glaucoma: primary open-angle Glaucoma versus primary angle-closure Glaucoma-a meta-analysis”. Eye The Scientific Journal of The Royal College of Ophthalmologists. 36(11):2099-105.
4. Koh V, Keshtkaran MR, Hernstadt D, Aquino MCD, Chew PT, Sng C (2019). “Predicting the outcome of laser peripheral iridotomy for primary angle closure suspect eyes using anterior segment optical coherence tomography”. Acta Ophthalmologica. 97(1):e57-e63
5. He M, Friedman DS, Ge J, Huang W, Jin C, Lee PS, Khaw PT, Foster PJ (2007). “Laser peripheral iridotomy in primary angle-closure suspects: biometric and gonioscopic outcomes: the Liwan Eye Study”. American Academy of Ophthalmology. 114(3):494-500.
6. Ang LP, Aung T & Chew PT (2000). Ophthalmology, Acute primary angle closure in an Asian population: long-term outcome of the fellow eye after prophylactic laser peripheral iridotomy. pp. 2092–2096.
7. Lee K S, Sung K R, Shon K, Sun J H, et al, (2013), "Longitudinal changes in anterior segment parameters after laser peripheral iridotomy assessed by anterior segment optical coherence tomography", Invest Ophthalmol Vis Sci, 54 (5), pp. 3166-3170.
8. Helal J, Saad H, Sabry M, Eldorghamy A, (2019), "Assessment of the changes in anterior segment parameters by ultrasound biomicroscopy after laser peripheral iridotomy", Delta Journal of Ophthalmology, 20 (1), pp. 32-42.
9. How AC, BaskaranM, Kumar RS et al. (2012): “Changes in anterior segment morphology after laser peripheral iridotomy: an anterior segment optical coherence tomography study”, Ophthalmology, pp.1383–1387.
10. Gao X, Zhou Y, Zuo C, Chen L, et al, (2021), "Predictive Equation for Angle Opening Distance at 750 μm After Laser Peripheral Iridotomy in Primary Angle Closure Suspects", 8 (1329), pp.