PMID- 27694490 OWN - NLM STAT- MEDLINE DCOM- 20171225 LR - 20190202 IS - 2044-6055 (Electronic) IS - 2044-6055 (Linking) VI - 6 IP - 9 DP - 2016 Sep 30 TI - Effect of vitreomacular adhesion and vitreous gel on age-related reduction of macular thickness: a retrospective observational study. PG - e012972 LID - 10.1136/bmjopen-2016-012972 [doi] LID - e012972 AB - OBJECTIVE: To investigate the effects of vitreomacular adhesion (VMA), vitreomacular separation (VMS) and absence of vitreous gel due to vitrectomy on macular thickness measured in the spectral domain optical coherence tomographic (SD-OCT) images. DESIGN: A longitudinal, retrospective, observational study. SETTING: Secondary multicentre study. PARTICIPANTS: 218 eyes of 218 healthy patients and 119 vitrectomised eyes of 119 patients were studied. The healthy individuals were classified into a VMA group (54 eyes) and a VMS group (164 eyes), while the vitrectomised patients were classified into an internal limiting membrane (ILM)-on group (26 eyes) and an ILM-off group (93 eyes). In all participants, 2 Cirrus HD-OCT recordings were made with an average interval of 36 months (range 24-60 months). PRIMARY AND SECONDARY OUTCOME MEASURES: The primary outcome measure was the rate of change in macular thickness in the central sector. The secondary outcomes were the rates of change in macular thickness in the inner 4 sectors. RESULTS: The annual rate of change in the macular thickness of the central sector was 0.76+/-1.8 microm/year in the VMA group, -0.58+/-2.3 microm/year in the VMS group, -1.57+/-1.9 microm/year in the ILM-on group and -0.86+/-3.1 microm/year in the ILM-off group. There was a significant difference between the rate of the central sector thickness change in the VMA and VMS groups (p=0.0001). The presence of VMA was a significant factor associated with an increase in the central sector thickness (p=0.0055). When the healthy and ILM-on groups were compared, the rate of decrease in the central sector thickness was faster in the ILM-on group (p=0.0043). Multiple regression analyses showed that not peeling the ILM during the vitrectomy was a significant factor associated with a decrease in the central sector thickness (p=0.044). CONCLUSIONS: The presence of a VMA and a vitreous gel may help restrain the macular thickness reduction. CI - Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://www.bmj.com/company/products-services/rights-and-licensing/. FAU - Kumagai, Kazuyuki AU - Kumagai K AD - Kami-iida Daiichi General Hospital, Aichi, Japan. FAU - Hangai, Masanori AU - Hangai M AD - Department of Ophthalmology, Faculty of Medicine, Saitama Medical University, Iruma, Japan. FAU - Furukawa, Mariko AU - Furukawa M AD - Kami-iida Daiichi General Hospital, Aichi, Japan. FAU - Suetsugu, Tetsuyuki AU - Suetsugu T AUID- ORCID: 0000-0003-3682-3167 AD - Kami-iida Daiichi General Hospital, Aichi, Japan. FAU - Ogino, Nobuchika AU - Ogino N AD - Shinjo Ophthalmologic Institute, Miyazaki, Japan. LA - eng PT - Journal Article PT - Multicenter Study PT - Observational Study DEP - 20160930 PL - England TA - BMJ Open JT - BMJ open JID - 101552874 SB - IM MH - Aged MH - Aged, 80 and over MH - Case-Control Studies MH - Female MH - Humans MH - Japan MH - Longitudinal Studies MH - Macula Lutea/*diagnostic imaging MH - Male MH - Middle Aged MH - Multivariate Analysis MH - Regression Analysis MH - Retina/*diagnostic imaging MH - Retrospective Studies MH - Tissue Adhesions/*diagnostic imaging MH - Tomography, Optical Coherence MH - Visual Acuity MH - *Vitrectomy PMC - PMC5051463 EDAT- 2016/10/04 06:00 MHDA- 2017/12/26 06:00 PMCR- 2016/09/30 CRDT- 2016/10/04 06:00 PHST- 2016/10/04 06:00 [entrez] PHST- 2016/10/04 06:00 [pubmed] PHST- 2017/12/26 06:00 [medline] PHST- 2016/09/30 00:00 [pmc-release] AID - bmjopen-2016-012972 [pii] AID - 10.1136/bmjopen-2016-012972 [doi] PST - epublish SO - BMJ Open. 2016 Sep 30;6(9):e012972. doi: 10.1136/bmjopen-2016-012972.