PMID- 28141872 OWN - NLM STAT- MEDLINE DCOM- 20170809 LR - 20190208 IS - 1932-6203 (Electronic) IS - 1932-6203 (Linking) VI - 12 IP - 1 DP - 2017 TI - Factors Associated with the Retinal Nerve Fiber Layer Loss after Acute Primary Angle Closure: A Prospective EDI-OCT Study. PG - e0168678 LID - 10.1371/journal.pone.0168678 [doi] LID - e0168678 AB - PURPOSE: To determine the factors associated with retinal nerve fiber layer (RNFL) loss in eyes with acute primary angle-closure (APAC), particularly focusing on the influence of the change in the anterior lamina cribrosa surface depth (LCD). METHODS: After the initial presentation, 30 eyes with unilateral APAC were followed up at the following specific time points over a 12-month period: 1 week, 1~2 months, 2~3 months, 5~6 months, and 11~12 months. These follow-ups involved intraocular pressure measurements, enhanced depth-imaging spectral-domain optical coherence tomography (SD-OCT) scanning of the optic disc, and measurements of the circumpapillary RNFL thickness. The prelaminar tissue thickness (PLT) and LCD were determined in the SD-OCT images obtained at each follow-up visit. RESULTS: Repeated measures analysis of variance revealed a significant pattern of decrease in the global RNFL thickness, PLT, and LCD (all p<0.001). The global RNFL thickness decreased continuously throughout the follow-up period, while the PLT decreased until 5~6 months and did not change thereafter. The LCD reduced until 2~3 months and then also remained steady. Multivariable regression analysis revealed that symptoms with a longer duration before receiving laser peripheral iridotomy (LI) (p = 0.049) and a larger LCD reduction (p = 0.034) were significant factors associated with the conversion to an abnormal RNFL thickness defined using OCT normative data. CONCLUSION: Early short-term decreases in the PLT and LCD and overall long-term decrease in the peripapillary RNFL were observed during a 12-month follow-up after an APAC episode. A longer duration of symptoms before receiving LI treatment and larger LCD reduction during follow-up were associated with the progressive RNFL loss. The LCD reduction may indicate a prior presence of significant pressure-induced stress that had been imposed on the optic nerve head at the time of APAC episode. Glaucomatous progression should be suspected in eyes showing LCD reduction after the APAC remission. FAU - Lee, Eun Ji AU - Lee EJ AUID- ORCID: 0000-0001-9393-9452 AD - Department of Ophthalmology, Seoul National University College of Medicine, Seoul National University Bundang Hospital, Seongnam, Korea. FAU - Kim, Tae-Woo AU - Kim TW AD - Department of Ophthalmology, Seoul National University College of Medicine, Seoul National University Bundang Hospital, Seongnam, Korea. FAU - Lee, Kyoung Min AU - Lee KM AD - Department of Ophthalmology, Seoul National University College of Medicine, Seoul National University Bundang Hospital, Seongnam, Korea. FAU - Lee, Seung Hyen AU - Lee SH AD - Department of Ophthalmology, Seoul National University College of Medicine, Seoul National University Bundang Hospital, Seongnam, Korea. FAU - Kim, Hyunjoong AU - Kim H AD - Department of Applied Statistics, Yonsei University, Seoul, Korea. LA - eng PT - Journal Article DEP - 20170131 PL - United States TA - PLoS One JT - PloS one JID - 101285081 SB - IM MH - Aged MH - Aged, 80 and over MH - Female MH - Glaucoma, Angle-Closure/*pathology/physiopathology MH - Humans MH - Intraocular Pressure MH - Male MH - Middle Aged MH - Nerve Fibers/*pathology MH - Optic Disk/pathology MH - Prospective Studies MH - Remission Induction MH - Retina/*pathology/physiopathology MH - Time Factors MH - Tomography, Optical Coherence/*methods PMC - PMC5283663 COIS- The authors have declared that no competing interests exist. EDAT- 2017/02/01 06:00 MHDA- 2017/08/10 06:00 PMCR- 2017/01/31 CRDT- 2017/02/01 06:00 PHST- 2016/05/18 00:00 [received] PHST- 2016/12/05 00:00 [accepted] PHST- 2017/02/01 06:00 [entrez] PHST- 2017/02/01 06:00 [pubmed] PHST- 2017/08/10 06:00 [medline] PHST- 2017/01/31 00:00 [pmc-release] AID - PONE-D-16-20031 [pii] AID - 10.1371/journal.pone.0168678 [doi] PST - epublish SO - PLoS One. 2017 Jan 31;12(1):e0168678. doi: 10.1371/journal.pone.0168678. eCollection 2017.