Intraocular pressure elevation and choroidal thinning
Purpose To evaluate changes in subfoveal choroidal thickness (SFCT) and peripapillary choroidal thickness (PPCT) after acute intraocular pressure (IOP) elevation provoked by a dark room prone provocative test (DRPPT). - Methods The prospective cohort study included 114 eyes from 65 individuals who h...
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| Main Authors: | , |
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| Format: | Article (Journal) |
| Language: | English |
| Published: |
25 March 2016
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| In: |
British journal of ophthalmology
Year: 2016, Volume: 100, Issue: 12, Pages: 1676-1681 |
| ISSN: | 1468-2079 |
| DOI: | 10.1136/bjophthalmol-2015-308062 |
| Online Access: | Verlag, Volltext: https://doi.org/10.1136/bjophthalmol-2015-308062 Verlag, Volltext: https://bjo.bmj.com/content/100/12/1676 
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| Author Notes: | Ya Xing Wang, Ran Jiang, Xiao Lei Ren, Jian Dong Chen, Hong Li Shi, Liang Xu, Wen Bin Wei, Jost B. Jonas |
| Summary: | Purpose To evaluate changes in subfoveal choroidal thickness (SFCT) and peripapillary choroidal thickness (PPCT) after acute intraocular pressure (IOP) elevation provoked by a dark room prone provocative test (DRPPT). - Methods The prospective cohort study included 114 eyes from 65 individuals who had an IOP elevation ≥2 mm Hg during the DRPPT. The participants stayed in a dark room for 2 h with the forehead placed on a desk. At baseline and within 5 min after the end of the DRPPT, tonometry and enhanced depth imaging by spectral-domain optical coherence tomography were carried out. - Results During the DRPPT, IOP increased by 10.1±10.9 mm Hg, SFCT decreased significantly (p<0.001) from 280±80 µm to 267±76 µm and PPCT decreased significantly (p<0.001) from 177±74 to 169±70 µm. In multivariate analysis, a more marked SFCT thinning was associated with higher IOP increase (p<0.001) and shallower anterior chamber depth at baseline (p=0.01). In a similar manner, a higher PPCT change was correlated with a higher IOP increase (p<0.001), and a thicker choroidal thickness at baseline (p<0.001). - Conclusions Choroidal thickness in the subfoveal region and in the peripapillary region decreased parallel to an acute increase in IOP in individuals 2 h after a dark room test. Choroidal thickness depends on the actual IOP, which may be noted when choroidal thickness is measured. |
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| Item Description: | Gesehen am 11.04.2019 |
| Physical Description: | Online Resource |
| ISSN: | 1468-2079 |
| DOI: | 10.1136/bjophthalmol-2015-308062 |