INTRA-OCULAR PRESSURE CHANGES FOLLOWING NEODYMIUM-DOPED YTTRIUM ALUMINIUM GARNET (ND:YAG) LASER CAPSULOTOMY

HIND SABAH AZEEZ; NOUR MOAFIQ MASOUD; QASIM HASSO ABDULLAH

HIND SABAH AZEEZ Duhok eye hospital, , Kurdistan Region, Iraq.
NOUR MOAFIQ MASOUD Lecturer, Department of Surgery, College of Medicine, University of Duhok, Kurdistan Region, Iraq.
QASIM HASSO ABDULLAH Professor, Department of Physiology,, College of Medicine, University of Duhok, Kurdistan Region, Iraq

Keywords: IOP, Nd:YAG, PCO, Refraction

Abstract

https://doi.org/10.31386/dmj.2022.16.2.4

Background: Posterior capsule opacification (PCO) is common complication of cataract surgery, neodymium:yttrium aluminum-garnet (Nd:YAG) laser capsulotomy is standard treatment. Although, it is non-invasive, it carries risk of complications.

AIM: to study intra-ocular pressure changes (IOP) and its correlation with energy, shot numbers, size and visual outcomes of capsulotomy; and finding the commonest type of opacification.

Method: This cross-sectional study was conducted in Duhok Eye Hospital from April 2018 to April 2019; 100 patient participants were examined for visual acuity, IOP measurement, and slit lamp examination.

Results: 60 males and 40 females (67%) were from 60 to 79 years, 53 right and 47 left eyes. The mean visual acuity and refraction were found to be higher one week post capsulotomy compared to pre capsulotomy, P value being less than 0.001. Most of female’s jobs were housewives (37.0%), while males’ jobs were ranged from (48.0%) retired (8.0%) workers to (7.0%) office workers. A higher mean in IOP was found two hours post-capsulotomy, P value being 0.025 when it was compared with IOP pre-capsulotomy and IOP one week post capsulotomy. A positive relation between shot numbers and increase IOP two hours post capsulotomy was recorded, P value 0.049.

Conclusions: The commonest type of PCO was membranous. 59.0% of patient’s ha the best corrected visual acuity of 6/6-6/12. IOP rise the was most frequent complication that reached a maximum two hours post capsulotomy, it was associated with shots number. and was normalized within a week

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References

REFERENCES
1. Hirnschall, N., & Findl, O. (2011). Patient-assessment techniques for cataract surgery.Expert Review of Ophthalmology, 6(2), 211–219.
2. Klein, B. E. K., Klein, R., Linton, K. L. P., & Neider, M. (2001). The age related eye disease study (AREDS) system for classifying cataracts from photographs. American Journal of Ophthalmology, 131(2), 167–1750
3. Rao CMS, Satyasrinivas V, Muralikrishna V, Anuhya Y, & Barua K. (2017). Clinical Study of Visual Outcome and Intraocular Pressure Changes Following Neodymium-doped Yttrium Aluminum Garnet LASER
4. Sune, M., & Roda, V. (2017). The influence of size and shape of Nd: YAG capsulotomy on visual acuity and refraction. MedPulse -International Medical Journal, 4(1), 40–43.
5. Apple, D. J., Solomon, K. D., Tetz, M. R., Assia, E. I., Holland, E. Y., Legler, U. F. C., Kostick, A. M. P. (1992). Posterior capsule opacification.Survey of Ophthalmology, 37(2), 73–116.
6. Steinert, R. F. (2013). Nd:YAG Laser Posterior Capsulotomy (Retrieved from https://www.aao.org/munnerlyn-laser-surgery-center/ndyag-laserposterior capsulotomy-3).
7. Raja, H., & Foster, C. S. (2015). Nd-YAG Laser Capsulotomy. Medscape (Retrieved from https://emedicine.medscape.com/article/1844140-overview#a1).
8. Karahan, E., Er, D., & Kaynak, S. (2014). An Overview of Nd:YAG Laser Capsulotomy. Medical hypothesis, discovery & innovation ophthalmology journal, 3(2), 45–50.
9. Shetty, N. K., & Sridhar, S. (2016). Study of Variation in Intraocular Pressure Spike (IOP) Following Nd- YAG Laser Capsulotomy. Journal of clinical and diagnostic research: JCDR, 10(12), NC09–NC12.
10. Patil, Mukesh, Singh, Divya, & Vanathi, Murugesan. (2016). Posterior Capsular Opacification: Mechanism, Prevention and Management (Retrieved from: https://www.researchgate.net/publication/324313250_ Posterior_Capsular_Opacification_Mechanism_Prevention_and_Management).
11. Dharmaraju, B., Vijayasree, S., & Sridhar, K. (2016). A Clinical Study of Visual Outcome in Nd: YAG Laser Capsulotomy in Posterior Capsular Opacity. International Journal of Contemporary Medical Research, 3(9), 2665–2668.
12. Shirzadi, K., Amirdehi, A., Makateb, A., Shahraki, K., & Khosravifard, K. (2015). Studying the Effect of Tropicamide Various Concentrations on Routine Dilation of the Pupil. Biomedical and Pharmacology Journal, 8(2), 885–889.
13. Hawlina, G., & Drnovšek-Olup, B. (2013). Nd:YAG Laser Capsulotomy for Treating Posterior Capsule Opacification .Journal of the Laser and Health Academy.(Retrieved from: https://www.laserandhealthacademy. com/en/journal/?id=1455&type=1).
14. Newland, T. J., Mcdermott, M. L., Eliott, D., Hazlett, L. D., Apple, D. J., Lambert, R. J., & Barrett, R. P. (1999). Experimental neodymium:YAG laser damage to acrylic, poly(methyl methacrylate), and silicone intraocular lens materials. Journal of Cataract & Refractive Surgery, 25(1), 72–76.
15. Raj, S. M., Vasavada, A. R., Johar, S. R., Vasavada, V. A., & Vasavada, V. A. (2007). Post-operative capsular opacification: a review. International journal of biomedical science: IJBS, 3(4), 237–250.
16. Friedman, N. J. (2009). Nd:YAG Lasers in Ophthalmology (Retrieved from: https://www.ophthalmologyweb.com/Tech-Spotlights/26524-Nd-YAGLasers-in-Ophthalmology/).
17. Parajuli, A., Joshi, P., Subedi, P., & Pradhan, C. (2019). Effect of Nd:YAG laser posterior capsulotomy on intraocular pressure, refraction, anterior chamber depth, and macular thickness. Clinical Ophthalmology, Volume 13, 945–952.
18. NEW VISION EYE CENTRE (2019). What is YAG Laser Capsulotomy Recovery Like? (Retrieved from: https://www.newvisioneyecenter.com/ cfiles/blogs/NVBlog_010119.cfm
19. El-Sayed, K. S., El-Saadani, A. E.-K., & El-Morsy, O. (2017). Effect of Nd: YAG laser capsulotomy size on visual outcomes of the eye, intraocular pressure, and macular thickness. Menoufia Medical Journal, 30(2), 512.
20. Patel, O. V., Chandrakar, N., Bajaj, P., & Mahajan, S. (2017). To evaluate the effects of Nd:YAG laser posterior capsulotomy on best corrected visual acuity (BCVA) and intraocular pressure. Asian Journal of Medical Sciences, 8(5), 93–97.
21. Kumar, J., Pratap, V., Chaubey, P., & Sharma, J. (2017). Role of Nd:Yag Laser in the Management of Posterior Capsular Opacification. IOSR Journal of Dental and Medical Sciences,16(12), 14–20.
22. Slomovic, A. R., & Parrish, R. K. (1985). Acute Elevations of Intraocular Pressure Following Nd:YAG Laser Posterior Capsulotomy. Ophthalmology, 92(7), 973–976.
23. Cao, W. (2018). Influence of size of Nd:YAG capsulotomy on ocular biological parameters and refraction. Western Pacific Region Index Medicus, 18(10), 1847-1850.