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. 2022 Jul 5;11(13):3906.
doi: 10.3390/jcm11133906.

Effect of High Myopia on Delayed Absorption of Subretinal Fluid after Scleral Buckling Surgery

Yongan Meng  1   2 , Kejun Long  3 , Jing Chen  3 , Jing Luo  1   2
Affiliations

Effect of High Myopia on Delayed Absorption of Subretinal Fluid after Scleral Buckling Surgery

Yongan Meng et al. J Clin Med. .

Abstract

This study compared the absorption of subretinal fluid (SRF) in patients with rhegmatogenous retinal detachment (RRD) with and without high myopia after scleral buckling (SB) and investigated the effect of high myopia on SRF absorption. This retrospective study included patients with primary macula-off RRD grouped according to myopia and age. The optical coherence tomography (OCT) and OCT angiography indicators included subretinal fluid height (SRFH), subfoveal choroidal thickness (SFCT), and choroidal capillary blood flow density (CCFD) measured regularly. The presence of SRF 3 months after surgery was defined as delayed absorption. Overall, 90 eyes of 89 patients were enrolled, and 46 eyes (51.11%) had high myopia. In 43 eyes (47.78%), SRF absorption was delayed. There was no significant difference in SRF absorption after SB between the high and non-high myopia groups; younger patients (<35 years) had a higher probability of delayed absorption (p < 0.05). The SFCT in high myopia was significantly thinner than that in the non-high myopia group (p < 0.05); SFCT and SRFH were positively correlated (rs = 0.275, p = 0.002), and there was a significant difference between the average CCFD with and without SRF (p < 0.05). High myopia had no significant effect on SRF absorption after SB.

Keywords: high myopia; optical coherence tomography; scleral buckling; subretinal fluid.

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Conflict of interest statement

The authors declare no conflict of interest.

Figures

Figure 1
Figure 1
Measurements of the subfoveal choroidal thickness (SFCT) and subretinal fluid height (SRFH). The SFCT is the perpendicular distance from the outer boundary of the retinal pigment epithelium (RPE) layer to the inner border of the sclera (green arrow). The SRFH is the perpendicular distance from the outer boundary of the neuroepithelial layer to the inner border of the RPE layer (orange arrow).
Figure 2
Figure 2
Measurement of the choroidal capillary blood flow density (CCFD). The flow area in the circle of 1.50 mm radius of choriocapillaris is measured, and the CCFD is obtained by the ratio of flow area to the selected area.
Figure 3
Figure 3
The scatterplots show the relationship between subretinal fluid height (SRFH) and subfoveal choroidal thickness (SFCT). (a): There is a weak positive correlation between SRFH and SFCT (rs = 0.275, p = 0.002). (b): In the high myopia group, SRFH has no significant relationship with SFCT (p = 0.064). (c): In the non-high myopia group, SRFH is moderately positively correlated with SFCT (rs = 0.402, p = 0.008).
Figure 3
Figure 3
The scatterplots show the relationship between subretinal fluid height (SRFH) and subfoveal choroidal thickness (SFCT). (a): There is a weak positive correlation between SRFH and SFCT (rs = 0.275, p = 0.002). (b): In the high myopia group, SRFH has no significant relationship with SFCT (p = 0.064). (c): In the non-high myopia group, SRFH is moderately positively correlated with SFCT (rs = 0.402, p = 0.008).
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