Safety and efficacy of 532 nm frequency-doubled Nd-YAG green laser photocoagulation for treatment of retinopathy of prematurity

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dc.contributor.authorSingh, SRen_US
dc.contributor.authorKatoch, Den_US
dc.contributor.authorHanda, Sen_US
dc.contributor.authorKaur, Sen_US
dc.contributor.authorMoharana, Ben_US
dc.contributor.authorDogra, Men_US
dc.contributor.authorDogra, MRen_US
dc.date.accessioned2020-04-10T02:03:29Z
dc.date.available2020-04-10T02:03:29Z
dc.date.issued2019-06
dc.description.abstractPurpose: To evaluate the safety and efficacy of 532 nm frequency-doubled Nd-YAG green laser for treatment of retinopathy of prematurity (ROP). Methods: This retrospective interventional case series included infants undergoing treatment for ROP with 532 nm green laser between January 2012 and March 2017 at a single tertiary-care referral center. Review of clinical records was done to identify baseline ROP characteristics, procedural difficulties, complications related to the laser procedure and outcome of treatment at ? 1 year of follow-up. Results: There are about 347 eyes of 182 infants were included in this present study. ROP presented in zone I in 76 eyes (21.9%) and zone II in 271 eyes (78.1%). Tunica vasculosa lentis (TVL) was present in 43.8% and pre-existing vitreous hemorrhage in 4.6% of the eyes. 532 nm green laser could be performed as a primary procedure in all eyes, including those with TVL. 322 eyes completed a minimum follow up of 1 year with a mean follow up of 22.8 months (range, 12–54 months). At the last follow-up visit, 298 (92.5%) of the 322 eyes had a favorable outcome. On logistic regression analysis, pre-existing fibrovascular proliferation (p = 0.04) and new-onset fibrovascular proliferation after treatment (p = 0.001) were the most significant independent predictors of poor outcome. Complications encountered were new-onset hemorrhage in 36 eyes (11.2%), anterior segment ischemia in two eyes (0.006%) and cataract in one eye (0.003%). Conclusion: 532 nm frequency-doubled Nd-YAG green laser appears to be safe and effective in the treatment of ROP.en_US
dc.identifier.affiliationsAdvanced Eye Centre, Post Graduate Institute of Medical Education and Research, Chandigarh, Indiaen_US
dc.identifier.citationSingh SR, Katoch D, Handa S, Kaur S, Moharana B, Dogra M, Dogra MR. Safety and efficacy of 532 nm frequency-doubled Nd-YAG green laser photocoagulation for treatment of retinopathy of prematurity. Indian Journal of Ophthalmology. 2019 Jun; 67(6): 860-865en_US
dc.identifier.issn0301-4738
dc.identifier.issn1998-3689
dc.identifier.placeIndiaen_US
dc.identifier.urihttps://imsear.searo.who.int/handle/123456789/197281
dc.languageenen_US
dc.publisherAll India Ophthalmological Societyen_US
dc.relation.issuenumber6en_US
dc.relation.volume67en_US
dc.source.urihttps://dx.doi.org/10.4103/ijo.IJO_325_19en_US
dc.subject532 nm frequency doubled Nd-YAG laseren_US
dc.subjectAPROPen_US
dc.subjectgreen laseren_US
dc.subjectlaser photocoagulationen_US
dc.subjectoutcomeen_US
dc.subjectretinopathy of prematurityen_US
dc.subjectTVLen_US
dc.titleSafety and efficacy of 532 nm frequency-doubled Nd-YAG green laser photocoagulation for treatment of retinopathy of prematurityen_US
dc.typeJournal Articleen_US
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