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Objective:To observe the choroidal vascular changes of chronic central serous chorioretinopathy (cCSC), and analyze their correlations with central macular thickness (CMT).Methods:A cross-sectional study was adopted.Seventy-six eyes of 38 patients with monocular cCSC who were treated in Renmin Hospital of Wuhan University from March 2018 to December 2019 were enrolled, and 30 eyes of 30 normal control matched with age, gender, and spherical equivalent (SE) were included.Choroidal images of all subjects, and the CMT, subfoveal choroidal thickness (SFCT), choroidal vascularity index (CVI), total choroidal area (TCA), choroidal stromal area (SA), and choroidal luminal area (LA) were measured by Heidelberg enhanced depth imaging optical coherence tomography.The differences in SFCT, LA, SA, TCA, CMT and CVI between the cCSC eye, fellow eye and normal eye, as well as the correlation between SFCT and CVI, SFCT and CMT, and CVI and CMT were analyzed.This study adhered to the Declaration of Helsinki.The study protocol was approved by the Ethics Committee of Renmin Hospital of Wuhan University (No.WDRY2020-K234).Results:The CVI and the SFCT of the cCSC eyes, fellow eyes and normal eyes were (71.67±5.60)% and 483.82(409.01, 550.87)μm, (68.33±3.85)% and 444.66(351.25, 505.15)μm, (64.70±1.88)% and 373.46(327.98, 405.48)μm, respectively.The CMT, SFCT, TCA, LA, CVI in cCSC eyes were significantly higher than those in the contralateral eyes and normal control eyes, while SFCT, TCA, LA, CVI in the contralateral eyes were higher than those in normal control eyes (all at P<0.05). Pairwise comparison among the three groups showed no significant difference in SA (all at P>0.05). Correlation analysis showed that in cCSC eyes, SFCT was strongly positively correlated with CVI ( rs=0.703, P<0.001), and there was no correlation between CMT and SFCT ( rs=0.181, P=0.278), or CMT and CVI ( r=0.231, P=0.164). Conclusions:The SFCT and CVI are higher in cCSC and the fellow eyes compared with normal eyes, and the choroidal vessels are significantly dilated in cCSC patients.The SFCT and CVI of the cCSC eye are slightly higher in comparison with the fellow eye.CMT is not correlated with SFCT or CVI in cCSC eyes.
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Purpose: To evaluate the role of swept?source optical coherence tomography (SS?OCT) in the management of acute Vogt–Koyanagi–Harada’s (VKH) disease. Methods: Retrospective analysis of SS?OCT images of acute VKH patients between January 2015 and February 2020 in a tertiary eye care hospital. Results: We studied 34 eyes of 17 patients with acute probable VKH disease. The mean age was 31.6 ± 10.4 years. Twelve patients were women. The mean follow?up was 17.1 ± 9.3 months. The mean visual acuity was 0.86 logMAR (Snellen equivalent: 6/45) at presentation and 0.18 logMAR (Snellen equivalent: 6/9) at the last follow?up. The mean subfoveal choroidal thickness (SFCT) was 784.97 microns at presentation, 431.40 microns at the first month of therapy, 453.94 microns at six months of therapy, and 405.83 microns at the last follow?up. Qualitative features noted on SS?OCT on presentation was subretinal fluid (SRF) in 29 (85%) eyes, subretinal hyperreflective dots in 34 (100%) eyes, subretinal septa in 33 (97%) eyes, RPE undulations in 21 (61.7%) eyes, posterior vitreous cells in 34 (100%) eyes, SRF around disc in 9 (26%) eyes, and disc swelling in 34 (100%) eyes. At the end of 1 year of follow?up, RPE undulations were absent in 30 eyes (88%) and disc swelling was notably absent in all 34 eyes (100%), though SRF around disc was noted in 4 eyes (11.7%) of 2 patients who had recurrences. Conclusion: SFCT, SRF around disc, RPE undulation, and disc swelling may be important indicators on SS?OCT to guide therapy and prognosticate recurrences in acute VKH.
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@#AIM: To explore the related factors that affect the subfoveal choroidal thickness(SFCT)of children with low to moderate myopia. <p>METHODS: A cross-sectional study. We selected children aged 6-12 who were diagnosed as myopia in the Department of Ophthalmology of the Affiliated Xuzhou Municipal Hospital of Xuzhou Medical University from October to December 2020, according to the spherical equivalent refraction(SER), 60 patients(60 eyes)with low myopia of -0.75 to -3.00D and 50 patients(50 eyes)with moderate myopia of -3.25 to -6.00D, which was obtained by cycloplegic refraction. All participants conducted ophthalmic examination, including measurements of SFCT, subfoveal retinal thickness(SFRT), axial length(AL), and parameters of ocular accommodation. Children's age, sex, parental myopia, height and weight were collected. The relationship between SFCT and various factors was investigated.<p>RESULTS: The average SFCT of the low and moderate myopia were 273.30±44.93 and 237.16±48.56μm(<i>P</i><0.01), respectively. Pearson's correlation analysis showed that SFCT was statistically related to SER, AL and height(<i>r</i>=0.35, -0.45, -0.19, all <i>P</i><0.05), and no statistical correlation with other factors(all <i>P</i>>0.05). Multiple linear regression showed that SFCT became thinner as AL became longer(<i>B</i>= -19.87, <i>P</i><0.01). <p>CONCLUSION:SFCT in children with low to moderate myopia was statistically related to SER, AL and height, but it was not notably related to other factors. AL was the most significant factor affecting SFCT.
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@#AIM: To study the characteristics and related influencing factors of subfoveal choroidal thickness(SFCT)changing with time in children with myopia. <p>METHODS: Totally 60 eyes of 60 children with myopia aged 6-15 years old who were admitted to the Eye Hospital of Nanchang University from July 2018 to September 2018 were included. IOP, axial length, equivalent spherical degree and SFCT were measured at baseline and 6mo of follow-up, respectively. Analyze the changes of the above-mentioned eye parameters and related influencing factors of SFCT. <p>RESULTS: Compared with baseline, follow-up for 6mo, myopic children's SFCT decreased by 8±14μm(<i>P</i><0.001), the axial length increased by 0.15±0.16mm(<i>P</i><0.001), and the equivalent spherical degree increased by -0.34±0.33D(<i>P</i><0.001), and there is a significant correlation between the SFCT change value and the axial length and equivalent spherical power change value(<i>r</i>s=-0.701, 0.633, both <i>P</i><0.001), indicating faster axial growth and myopia increasing is related to more thinning of the membrane thickness. Multiple linear regression analysis shows that SFCT is significantly correlated with axial length(<i>P</i>=0.001).<p>CONCLUSION: The SFCT of myopic children becomes thinner over time, and the axial length is negatively correlated with SFCT, and children with faster axial growing and greater myopia increasing are usually accompanied by more SFCT thinning.
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@#AIM: To study the characteristics and related influencing factors of subfoveal choroidal thickness(SFCT)changing with time in children with myopia. <p>METHODS: Totally 60 eyes of 60 children with myopia aged 6-15 years old who were admitted to the Eye Hospital of Nanchang University from July 2018 to September 2018 were included. IOP, axial length, equivalent spherical degree and SFCT were measured at baseline and 6mo of follow-up, respectively. Analyze the changes of the above-mentioned eye parameters and related influencing factors of SFCT. <p>RESULTS: Compared with baseline, follow-up for 6mo, myopic children's SFCT decreased by 8±14μm(<i>P</i><0.001), the axial length increased by 0.15±0.16mm(<i>P</i><0.001), and the equivalent spherical degree increased by -0.34±0.33D(<i>P</i><0.001), and there is a significant correlation between the SFCT change value and the axial length and equivalent spherical power change value(<i>r</i>s=-0.701, 0.633, both <i>P</i><0.001), indicating faster axial growth and myopia increasing is related to more thinning of the membrane thickness. Multiple linear regression analysis shows that SFCT is significantly correlated with axial length(<i>P</i>=0.001).<p>CONCLUSION: The SFCT of myopic children becomes thinner over time, and the axial length is negatively correlated with SFCT, and children with faster axial growing and greater myopia increasing are usually accompanied by more SFCT thinning.
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@#AIM: To study the characteristics and related influencing factors of subfoveal choroidal thickness(SFCT)changing with time in children with myopia. <p>METHODS: Totally 60 eyes of 60 children with myopia aged 6-15 years old who were admitted to the Eye Hospital of Nanchang University from July 2018 to September 2018 were included. IOP, axial length, equivalent spherical degree and SFCT were measured at baseline and 6mo of follow-up, respectively. Analyze the changes of the above-mentioned eye parameters and related influencing factors of SFCT. <p>RESULTS: Compared with baseline, follow-up for 6mo, myopic children's SFCT decreased by 8±14μm(<i>P</i><0.001), the axial length increased by 0.15±0.16mm(<i>P</i><0.001), and the equivalent spherical degree increased by -0.34±0.33D(<i>P</i><0.001), and there is a significant correlation between the SFCT change value and the axial length and equivalent spherical power change value(<i>r</i>s=-0.701, 0.633, both <i>P</i><0.001), indicating faster axial growth and myopia increasing is related to more thinning of the membrane thickness. Multiple linear regression analysis shows that SFCT is significantly correlated with axial length(<i>P</i>=0.001).<p>CONCLUSION: The SFCT of myopic children becomes thinner over time, and the axial length is negatively correlated with SFCT, and children with faster axial growing and greater myopia increasing are usually accompanied by more SFCT thinning.
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@#AIM: To investigate subfoveal subretinal fluid thickness(SFT)and subfoveal choroidal thickness(CT)after scleral buckling surgery(SBS)for macula-off rhegmatogenous retinal detachment(RRD).<p>METHODS: Retrospective observational case series. Twenty-three patients with macula-off RRD underwent successful SBS combined with cryotherapy. Patients with recurrent retinal detachment and proliferative preretinal membranes were excluded. Optical coherence tomography(OCT)was used to measure subfoveal SFT and subfoveal CT. The OCT images were then evaluated preoperatively and postoperatively at 1wk, 1, 3, 6, and 12mo. Best-corrected visual acuity(BCVA)was measured preoperatively and postoperatively.<p>RESULTS: All of the patients had subretinal fluid 1wk after operation. Subfoveal SFT gradually reduced over time. The subfoveal CT was thicker 1wk postoperatively and gradually decreased subsequently. The BCVA(mean±SD, LogMAR)was 0.60±0.35, which was a statistically significant change from the preoperative BCVA(<i>t</i>=6.35, <i>P</i><0.01).<p>CONCLUSION: The subretinal fluid was gradually absorbed with time, and the subfoveal CT gradually decreased after the early thickening. The SBS rapidly improved the visual acuity of the patients after the early postoperative period.
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@#AIM: To study the characteristics and related influencing factors of subfoveal choroidal thickness(SFCT)changing with time in children with myopia. <p>METHODS: Totally 60 eyes of 60 children with myopia aged 6-15 years old who were admitted to the Eye Hospital of Nanchang University from July 2018 to September 2018 were included. IOP, axial length, equivalent spherical degree and SFCT were measured at baseline and 6mo of follow-up, respectively. Analyze the changes of the above-mentioned eye parameters and related influencing factors of SFCT. <p>RESULTS: Compared with baseline, follow-up for 6mo, myopic children's SFCT decreased by 8±14μm(<i>P</i><0.001), the axial length increased by 0.15±0.16mm(<i>P</i><0.001), and the equivalent spherical degree increased by -0.34±0.33D(<i>P</i><0.001), and there is a significant correlation between the SFCT change value and the axial length and equivalent spherical power change value(<i>r</i>s=-0.701, 0.633, both <i>P</i><0.001), indicating faster axial growth and myopia increasing is related to more thinning of the membrane thickness. Multiple linear regression analysis shows that SFCT is significantly correlated with axial length(<i>P</i>=0.001).<p>CONCLUSION: The SFCT of myopic children becomes thinner over time, and the axial length is negatively correlated with SFCT, and children with faster axial growing and greater myopia increasing are usually accompanied by more SFCT thinning.
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@#AIM: To explore the relationship between HbA1c and the changes of retinal and choroidal structures in macular region, and between HbA1c and corrected distant visual acuity before and after cataract surgery in diabetic patients.<p>METHODS: It is a prospective randomized clinical trial. According to the patient's history, the subjects were divided into the non-diabetes group and the diabetic group. According to the level of HbA1c before operation, the diabetic group was divided into the high HbA1c group(HbA1c>7.0%)and the normal HbA1c group(HbA1c≤7.0%). All 87 eyes from 82 patients who met the criteria from October 2016 to December 2017 in the Department of Ophthalmology at Qingdao Municipal Hospital were enrolled in this study. There were 30 eyes from 28 patients in the non-diabetes group(4%≤HbA1c≤6.0%), 29 eyes from 28 patients in the high HbA1c group and 28 eyes from 26 patients in the normal HbA1c group. Spectral-domain optical coherence tomography(SD-OCT)was used to examine central subifield thickness(CST), central volume(CV)and subfoveal choroidal thickness(SFCT)at 1d before surgery, 1d after surgery, 1wk after surgery, 1mo after surgery and 3mo after surgery. The variance analysis and Pearson correlation analysis were used to analyze the changes and the correlation with HbA1c value. At the same time, the incidence of macular edema after surgery(PCME)was compared among the groups, and the relationship between HbA1c and postoperative corrected distance visual acuity(CDVA)in diabetes patients was also analyzed. <p>RESULTS: In non diabetic group, high HbA1c group and normal HbA1c group, CST was 239.03+11.55μm, 254.38+26.44μm, 247.07+19.51μm at 1wk after cataract surgery. Their CST was 241.00±11.15μm, 271.55±61.05μm, 248.64±38.28μm at 1mo after cataract surgery(<i>F</i>=3.001, <i>P</i>=0.048). Besides, there was a positive correlation between HbA1c and CST at 1wk and 1mo after operation in the two groups at <i>P</i>=0.01 level(<i>r</i>1wk=0.338, <i>r</i>1mo=0.297)(<i>P</i><0.05). The postoperative macular cystoid edema in non-diabetic group, high HbA1c group and normal HbA1c group were 0, 5(5 eyes, 17%)and 1(1 eye, 4%)respectively. In non diabetic group, high HbA1c group and normal HbA1c group, CDVA was 0.07±0.06, 0.12±0.10, 0.09±0.08 at 1wk after cataract surgery. Their CDVA was 0.03±0.06, 0.11±0.15, 0.11±0.09 at 1mo after cataract surgery. Their CDVA was 0.02±0.04, 0.08±0.12, 0.06±0.06 at 3mo after cataract surgery(<i>F</i>=3.272, <i>P</i>=0.045). The differences among three groups in the CDVA were statistically significant at 1wk, 1mo and 3mo after surgery. There was no significant difference between the high HbA1c group and the normal HbA1c group(<i>P</i>>0.05). However, CDVA(LogMAR)of the two groups was positively correlated with HbA1c at <i>P</i>=0.01 level(<i>r</i>1wk=0.425, <i>r</i>1mo=0.235, <i>r</i>3mo=0.332). There was no statistically significant difference in the changes of CV and SFCT among the three groups, and the trend of changes among these groups was approximately the same. <p>CONCLUSION: There is a close relationship between the microscopic structure of macula and HbA1c before phacoemulsification in diabetic patients. The risk of macular edema increased in patients with hba1c >7.0% before surgery. The best corrected visual acuity of diabetes patients after surgery was significantly related to the hba1c value before surgery. The higher the hba1c value before surgery, the poorer the improvement of vision after surgery. The level of HbA1c before surgery in diabetic patients is related to the anatomical structure of macular after cataract surgery. The risk of macular edema after surgery is increased in patients with high HbA1c(HbA1c>7.0%)before surgery. Meanwhile, the preoperative HbA1c of diabetic patients is closely related to CDVA after cataract surgery. The higher the preoperative HbA1c value, the worse the CDVA in diabetics after surgery.
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@#AIM: To observe the changes of retina and choroid in macular region using EDI SD-OCT before and after phacoemulsification, and study the intervention and prevention effect of triamcinolone acetonide(TA)on macular edema.<p>METHODS: In a prospective randomized clinical trial, selected the cataract patients with NPDR in our hospital. They were randomly divided into two groups. The experimental group(group 1)received Tenon's injection of TA 40mg during phacoemulsification, while the control group(group 2)only received phacoemulsification. The changes of best corrected visual acuity(BCVA), intraocular pressure(IOP), central macular retinal thickness(CMT), subfoveal choroidal thickness(SFCT)before and after surgery were observed.<p>RESULTS: There were significant differences in BCVA between the two groups before and after operation(<i>P</i><0.05); at 1wk after operation, the SFCT of the control group was thicker than that of the experimental group(<i>t</i>=2.165, <i>P</i><0.05); at 2wk after operation, there were significant differences between the CMT and SFCT groups(<i>P</i><0.05). There were significant differences in BCVA and CMT between the two groups(<i>P</i><0.05), and no significant difference in IOP(<i>P</i>>0.05).The incidence of diabetic macular edema(DME)after surgery was 0 in group 1 and 11% in group 2.<p>CONCLUSION: Posterior subfascial injection of TA in NPDR patients during phacoemulsification may have a positive preventive effect on the occurrence of DME.
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@#AIM: To study the subfoveal choroidal thickness(SFCT)and its influencing factors in children with different degree of myopia.<p>METHODS: This is prospective cohort study. Eighty-nine eyes of 45 school-age children aged 5-14 years old were studied, and according to the equivalent sphericity(SE)into different refractive groups. Mild, moderate and high myopia groups had 27, 42 and 20 eyes respectively, apply the enhanced depth scanning mode(EDI-OCT)of an optical coherence tomography(OCT)scanner to measure SFCT to compare choroid thickness differences among myopia groups, to find out the change rule of SFCT between myopia groups, and Pearson correlation analysis was used to analyze the related influencing factors.<p>RESULTS:SFCT of mild myopia, moderate myopia and high myopia respectively were(253.22±43.56)μm,(223.19±54.93)μm,(185.90±50.99)μm, SFCT differences between different refractive groups were statistically significant(<i>P</i><0.05), Pearson correlation analysis found that there was a significant correlation between SFCT and SE and axial length(<i>r</i>=0.430, -0.499, 0.425, all <i>P</i><0.001); slightly related to K1 and K2, and the correlation of AL, retinal nerve fiber layer(RNFL)thickness were better than that of SE. There were statistically significant differences in family history of myopia among the myopic groups(χ2=7.44, <i>P</i><0.05). <p>CONCLUSION: The degree of myopia in children was deepened and SFCT became thinner. The degree of myopia in children is related to the family history of myopia.
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@#AIM: To compare the difference of choroidal delamination thickness in macular fovea between patients with early active Graves ophthalmopathy and healthy subjects by optical coherence tomography(OCT)enhanced deep imaging.<p>METHODS:From December 2017 to May 2019, patients with early active Graves ophthalmopathy diagnosed in our hospital(GO group)and 31 patients(62 eyes)with age and sex matched healthy physical examination(control group)were selected. Diopter, best-corrected visual acuity(BCVA), intraocular pressure, exophthalmos, EDI-OCT and other examinations were performed on all the subjects. The differences of macular central concave choroidal thickness(SFCT), choroidal macrovascular layer thickness(LCVT)and choroidal capillary layer/middle vascular layer thickness(MCVT)between the two groups were compared.<p>RESULTS: There was no significant difference in equivalent spherical lens power, BCVA and eye axis between the two groups. However, the IOP(17.22±2.67mmHg), exophthalmos(15.44±0.92mm), SFCT(315.79±14.99μm), LCVT(234.66±14.90μm)in GO group were significantly higher than those in control group(13.35±1.54mmHg, 12.90±1.00mm, 239.00±12.67μm, 159.16±13.30μm)(all <i>P</i>Symbol|@@0.05), but there was no significant difference in MCVT between the two groups(81.13±7.46μm <i>vs</i> 80.13±7.63μm, <i>P></i>0.05).<p>CONCLUSION: SFCT and LCVT in patients with early active Graves ophthalmopathy are thickened, and MCVT has no obvious change, suggesting that EDI-OCT measurement of SFCT and LCVT has certain reference value for evaluating early active Graves ophthalmopathy.
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@#AIM: To study the changes of choroidal thickness and the relationship between visual function and choroidal thickness before and after idiopathic epiretinal membrane surgery.<p>METHODS: From January 2016 to December 2017, 30 patients(30 eyes)with idiopathic macular membrane who underwent surgical treatment in our hospital were selected to clinical study. All patients underwent TSV25G PPV with membrane and ILM peeling, patients were followed up by best corrected visual acuity(BCVA)and subfoveal choroidal thickness(SFCT)in preoperative and postoperative 1wk, 1mo and 3mo. We performed statistical analyses using SPSS22.0, for the evaluation of BCVA and SFCT, we compared the mean differences of preoperative and postoperative measurements. On the other hand, we estimated the correction relationship between BCVA and SFCT.<p>RESULTS: The BCVA at 3mo after operation was significantly higher than that before operation(<i>P</i>=0.011). We found a significant correlation between preoperative and postoperative 3mo BCVA(<i>r</i>=0.610, <i>P</i><0.01), postoperative 1wk,1mo, 3mo showed no significant difference with preoperative SFCT(<i>P</i>=0.999). We found no significant correlation between BCVA and SFCT.<p>CONCLUSION: There was no significant change in choroid thickness after surgery, and also no significant correlation between visual function and choroid thickness.
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PURPOSE: To determine changes in subfoveal choroidal thickness (SCT) after intravitreal injection of bevacizumab in eyes with macular edema secondary to retinal vein occlusion (RVO). METHODS: Forty-four patients treated with intravitreal bevacizumab for unilateral macular edema due to RVO were retrospectively reviewed. Before injection, patients underwent best-corrected visual acuity (BCVA) assessment, dilated fundus examination, fluorescein angiography, and enhanced depth imaging optical coherence tomography. Changes in BCVA, SCT, and central macular thickness (CMT) of the RVO eyes were evaluated and compared with those of the normal contralateral eyes at baseline and at 1, 3, and 6 months after injection. RESULTS: The mean SCT in RVO eyes (265.41 ± 43.02 µm) was significantly thicker than that in the fellow eyes (244.77 ± 30.35 µm) at baseline (p < 0.001). The mean SCT was significantly reduced at 1, 3, and 6 months after intravitreal bevacizumab injection (all p < 0.001), and the change in SCT was significantly correlated with the change in CMT (r = 0.327, p = 0.030). While there was an improvement in BCVA together with a reduction in SCT (p < 0.001), no significant correlation was found (p = 0.126). CONCLUSIONS: Subfoveal choroidal thickness in RVO eyes with macular edema was greater than that in the normal fellow eyes, and decreased significantly after intravitreal bevacizumab injection. The SCT reduction was significantly correlated with CMT reduction.
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Humans , Bevacizumab , Choroid , Fluorescein Angiography , Intravitreal Injections , Macular Edema , Retinal Vein Occlusion , Retinal Vein , Retinaldehyde , Retrospective Studies , Tomography, Optical Coherence , Visual AcuityABSTRACT
PURPOSE: To evaluate the efficacy of focal verteporfin photodynamic therapy (PDT) in patients diagnosed with chronic central serous chorioretinopathy (CSC).METHODS: This study enrolled 52 eyes of 52 patients with chronic CSC who had received verteporfin PDT. The laser spot size of 26 eyes covering only the localized hyperfluorescent area in indocyanine green angiography was classified as focal PDT. The PDT spot size of the other 26 eyes covered the total area of retinal pigment epithelial detachment including the leaking point and was defined as conventional PDT. The central subfield thickness and subfoveal choroidal thickness were measured using Heidelberg Spectralis optical coherence tomography before PDT and at months 1, 3, 6, and 12 after PDT.RESULTS: The mean spot size of the PDT was 1,995 µm in the focal group and 2,995 µm in the conventional group. Central subfield thickness steadily decreased in both groups. The mean baseline subfoveal choroidal thickness for the two groups was 334.95 and 348.35 µm, respectively, with no significant difference (p = 0.602). Subfoveal choroidal thickness decreased significantly to 304.20 µm at 1 month, 284.85 µm at 3 months, 271.60 µm at 6 months, and 265.95 µm at 12 months in the focal group (p < 0.001, p < 0.001, p < 0.001, and p < 0.001, respectively, compared with baseline). In the conventional group, subfoveal choroidal thickness decreased significantly to 318.75, 300, 284, and 272 µm at 1, 3, 6, and 12 months, respectively (p < 0.001, p < 0.001, p < 0.001 and p < 0.001 compared with baseline). There were no significant differences between the two groups in subfoveal choroidal thickness based on PDT spot size at 1, 3, 6, and 12 months (p = 0.633, p = 0.625, p = 0.676, and p =0.755, respectively).CONCLUSIONS: Focal verteporfin PDT for CSC significantly decreased the subretinal fluid and sufoveal choroidal thickness to the same extent as conventional PDT.
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Humans , Angiography , Central Serous Chorioretinopathy , Choroid , Indocyanine Green , Photochemotherapy , Retinal Detachment , Subretinal Fluid , Tomography, Optical CoherenceABSTRACT
Objective To observe the choroidal vascularity index (CVI) and the subfoveal choroidal thickness (SFCT) of central serous chorioretinopathy (CSC),and to compare the stability and consistency of the two methods of measurement.Methods A retrospective study.Thirty-one patients with unilateral acute CSC who visited the Department of Ophthalmology of Beijing Friendship Hospital for the first time during the period from Nov 1st,2016 to Mar 18th,2018 were included in the study.Thirty-one healthy age-matched subjects were enrolled as controls.All CSC affected eyes and their fellow eyes and healthy eyes were scanned by single-line enhanced depth imaging of OCT through central fovea of macula to measure their SFCT.The image was binarized and then the CVI of a 1500 μm range below fovea was calculated,i.e.the ratio of vascular (or lumen) area to total choroidal area.CVI and SFCT were compared among CSC eyes,fellow eyes and healthy eyes by variance analysis.Intra-group correlation coefficient (ICC),Bland-Altman curve and coefficient of variation (CV) were used to analyze the repeatability,consistency and stability of CVI and SFCT;and Medcalc18.2.1 software was used to draw the Bland-Altman curve and observe the consistency of the two measurement methods.Results There were statistically significant differences in CVI and SFCT between CSC affected eyes and fellow eyes (t=3.470,2.844;P=0.001,0.006),CSC affected eyes and healthy eyes (t=6.977,6.277;P＜0.001,＜0.001),fellow eyes and healthy eyes (t=3.508,3.433;P=0.001,0.001).Relative consistency analysis of CVI and SFCT showed that the ICC of single measurement and average measurement of CVI were 0.967 and 0.983 respectively,and that of single measurement and average measurement of SFCT were 0.937 and 0.967 respectively.The consistency of CVI and of SFCT was very good.The ICC value of CVI was slightly higher than that of SFCT.The results of repeatability analysis of CVI and SFCT showed that the difference between the two CVI measurements was smaller,and the difference between the two SFCT measurements was larger.And CVI and SFCT stability analysis results showed that the CV of CVI and SFCT were 10.5％ and 25.3％ respectively.CVI has smaller CV than SFCT.Conclusions Compared with healthy eyes,CVI and SFCT are increased in CSC affected eyes and fellow eyes.And compared with SFCT,CVI has better consistency,repeatability and stability.
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A 44-year-old female presented with central vision loss and photopsia in both eyes since 2 months. Multimodal imaging, field defects, electroretinogram abnormalities, and spectral domain optical coherence tomography changes were all suggestive of acute zonal occult outer retinopathy. En-face optical coherence tomography angiography (OCTA) images demonstrated hyper-reflective dots at the level of ellipsoid zone in both eyes in the presence of normal retinochoroidal vasculature. The patient was started on oral azathioprine and prednisolone. On two consecutive monthly follow-ups, en-face OCTA images demonstrated serial changes in the hyper-reflective dot morphology at ellipsoid zone level that have not been previously reported in the literature.
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PURPOSE: To evaluate the factors associated with refractory macular edema (ME) secondary to branch retinal vein occlusion (BRVO) after three times of intravitreal bevacizumab (IVB) injections. METHODS: Ninety eyes of Ninety patients, who were retrospectively reviewed, were treated with IVB of 1.25 mg (0.05 mL) for ME secondary to BRVO, repeated three times at 4-week intervals and then followed-up for at least 4 months after the IVB. The patients were classified as refractory if there was an increase in the mean retinal thickness >150 µm when measured 1 month after the three injections. The patients were divided into two groups: a responsive group (46 eyes) and a refractory group (44 eyes). RESULTS: In univariate logistic regression analyses, age, diabetes mellitus, hypertension, visual acuity, maximal combined response b wave amplitude (Max B amp), maximal combined response B/A ratio (Max B/A), cone response b wave amplitude, subfoveal choroidal thickness (SFCT), and the number of hyperreflective foci (HF) were risk factors for refractory ME of BRVO (p = 0.045, p = 0.010, p = 0.037, p = 0.034, p = 0.003, p = 0.004, p = 0.001, p = 0.001 and p = 0.001, respectively). In backward multivariate logistic regression analyses, age, Max B amp, Max B/A, SFCT and number of HF were risk factors for refractory ME of BRVO (p = 0.024, p = 0.004, p = 0.047, p = 0.033 and p = 0.049, respectively). CONCLUSIONS: Baseline age, Max B amp, Max B/A, SFCT and number of HF predicted the probability of refractory ME secondary to BRVO after IVB.
Subject(s)
Humans , Bevacizumab , Choroid , Diabetes Mellitus , Hypertension , Logistic Models , Macular Edema , Retinal Vein Occlusion , Retinal Vein , Retinaldehyde , Retrospective Studies , Risk Factors , Visual AcuityABSTRACT
PURPOSE: To compare the changes in subfoveal choroidal thickness between intravitreal aflibercept and ranibizumab injection in wet age-related macular degeneration (AMD). METHODS: Fifty patients with wet AMD patients who were treated with aflibercpet or ranibizumab were evaluated retrospectively. All patients were treated with pro re nata after 3 consecutive monthly injections and were followed up for at least 6 months. We measured subfoveal choroidal thickness (SFCT) using enhanced depth imaging spectral-domain optical coherence tomography before the first injection and 1, 2, 3, and 6 months after initial injection. RESULTS: The SFCT measures before initial injection and 1, 2, 3, and 6 months after initial injection were 244.94 ± 103.77 µm, 219.04 ± 95.89 µm, 208.74 ± 91.03 µm, 203.64 ± 91.35 µm, and 226.98 ± 96.79 µm in the aflibercept group (25 eyes) and 222.68 ± 102.04 µm, 210.23 ± 95.91 µm, 203.66 ± 99.39 µm, 197.27 ± 100.25 µm, and 210.32 ± 111.86 µm in the ranibizumab group (28 eyes). Mean change in SFCT was greater in the aflibercept group at 1 month, 2 months, and 3 months after initial injection (p 0.05). CONCLUSIONS: The decrease in SFCT was greater after aflibercept injection than ranibizumab injection in 3 consecutive months. However, at 6 months after initial injection, the difference in the change in SFCT was not significant.
Subject(s)
Humans , Choroid , Macular Degeneration , Ranibizumab , Retrospective Studies , Tomography, Optical CoherenceABSTRACT
PURPOSE: To evaluate changes in subfoveal choroidal thickness (SFCT) after patterned panretinal photocoagulation (PRP) using pattern scan laser (PASCAL) in patients with diabetic retinopathy. METHODS: This study included 39 patients (50 eyes) treated with patterned PRP using PASCAL and who were followed for at least 3 months. Patients were classified into 2 groups according to severity: severe non-proliferative diabetic retinopathy and proliferative diabetic retinopathy. SFCT was measured by enhanced depth imaging of spectral-domain optical coherence tomography. The change in SFCT was analyzed at 1 and 3 months after PRP. RESULTS: SFCT was 270.42 ± 61.44 µm before PRP, 264.52 ± 60.78 µm at 1 month, and 255.74 ± 56.89 µm at 3 months after PRP. Significant change of SFCT was found at 3 months after PRP. Central macular thickness was 275.56 ± 50.61 µm before PRP and increased to 295.18 ± 52.80 µm and 293.10 ± 57.24 µm at 1 and 3 months post-treatment, respectively. There were no significant differences between groups in SFCT at baseline or in the amount of change in SFCT after PRP. CONCLUSIONS: SFCT significantly decreased after patterned PRP using PASCAL.