scholarly journals Effects of Refractive Accommodation on Subfoveal Choroidal Thickness in Silicone Oil-Filled Eyes

2021 ◽  
Author(s):  
Ying Yan ◽  
Ran Liu ◽  
Chengyuan Gao ◽  
Yanping Song ◽  
Qin Ding ◽  
...  
Keyword(s):  
Error Correction ◽  
Refractive Error ◽  
Choroidal Thickness ◽  
Contact Lenses ◽  
Silicone Oil ◽  
Soft Contact ◽  
Subfoveal Choroidal Thickness ◽  
Vascular Area ◽  
Before And After ◽  
Uniform Change

Abstract PURPOSE: To investigate the effects of refractive accommodation on subfoveal choroidal thickness (SFCT) in silicone oil (SO)-filled eyes.METHODS: This retrospective, self-comparative study was conducted on 40 patients with unilateral macula-on rhegmatogenous retinal detachment, who underwent vitrectomy and SO tamponade. The SFCT of SO-filled eyes and the fellow control eyes were measured using optical coherence tomography at their one-month visit after surgery. The patients wore soft contact positive lenses for 24 hours in the SO-filled eyes, to correct their refractive error. SFCT and choroidal vascularity index (CVI) were measured before and after wearing the contact lenses. Mean SFCT was compared between SO-filled eyes and the fellow control eyes, and SFCT and CVI were compared before and after refractive error correction in the SO-filled eyes.RESULTS: Mean SFCT of SO-filled eyes (221.52±38.41 um) was less than that of the fellow eyes (273.41±31.30 um) (P<0.001). After refractive error correction, the mean SFCT increased to 269.28±36.90 um(P <0.001). However, CVI decreased from 57.01±2.41 to 55.39±2.39 (P<0.05).CONCLUSION: SFCT reduction in SO-filled eyes was primarily due to the hyperopia status. The non-uniform change in CVI suggests that changes in CT are mainly attributed to a greater expansion of the stromal area instead of the choroidal vascular area.

scholarly journals The effect of silicone oil tamponade on retinal layers and choroidal thickness in patients with rhegmatogenous retinal detachment: a systematic review and meta-analysis

2021 ◽  
Vol 7 (1) ◽  
Author(s):  
Heshmatollah Ghanbari ◽  
Farzan Kianersi ◽  
Alireza Jamshidi Madad ◽  
Alireza Dehghani ◽  
Alireza Rahimi ◽  
...  
Keyword(s):  
Retinal Detachment ◽  
Choroidal Thickness ◽  
Rhegmatogenous Retinal Detachment ◽  
Silicone Oil ◽  
Meta Analysis ◽  
Cochrane Library ◽  
Subfoveal Choroidal Thickness ◽  
Retinal Layers ◽  
Significant Difference ◽  
Before And After

Abstract Background To evaluate the effects of intravitreal silicone oil (SO) on the retinal and choroidal thickness in eyes with rhegmatogenous retinal detachment (RRD). Methods A literature search was performed in Web of Science, Scopus, ProQuest, Embase, Clinical Key, Science Direct, Cochrane Library, and Springer, as well as Persian databases, including IranDoc, MagIran, SID, MOH thesis, and MOH articles until June 2020. Two reviewers independently searched and extracted the data. Results Sixteen studies (n = 391) met the inclusion criteria. The meta-analysis showed that the SO tamponade could significantly reduce the central macular thickness (CMT) in patients with RRD as compared to gas tamponade WMD = − 14.91; 95% CI: − 22.23, − 7.60; P < 0.001, I2 = 71%). No significant change was found in CMT between the eye with SO tamponade (after SO removal) and the fellow healthy eye in patients with RRD (WMD = − 3.52; 95% CI: − 17.63, 10.59; I2 = 68.6%). Compared to the preoperative stage, the SO tamponade could significantly reduce the subfoveal choroidal thickness in patients with RRD (WMD = − 18.67, 95% CI: − 30.07, − 1.28; I2 = 80.1%). However, there was no significant difference in the subfoveal choroidal thickness before and after SO removal (WMD = − 1.13, 95% CI: − 5.97, 3.71; I2 = 87.6%). Conclusion The SO tamponade had a significant effect on the reduction of retinal layers and the subfoveal choroidal thickness.

scholarly journals The impact of wearing single vision soft contact lenses on the peripheral refractive error

F1000Research ◽  
2016 ◽  
Vol 5 ◽  
pp. 2803
Author(s):  
Kareem Allinjawi ◽  
Sharanjeet-Kaur Sharanjeet-Kaur ◽  
Saadah Mohamed Akhir ◽  
Haliza Abdul Mutalib
Keyword(s):  
Visual Field ◽  
Open Field ◽  
Refractive Error ◽  
Contact Lens ◽  
Contact Lenses ◽  
Soft Contact ◽  
Soft Contact Lenses ◽  
Single Vision ◽  
The Right ◽  
The Impact

Aim: The purpose of this study was to determine the changes in the relative peripheral refractive error produced by soft single vision contact lenses in myopic schoolchildren. Methods: 27 myopic schoolchildren aged between 13 to 15 years were included in this study. The measurements of central and peripheral refraction were made only on the right eye using a Grand-Seiko WR-5100K open-field autorefractometer without contact lens (WL), and with wearing single vision contact lens (SVCL). Refractive power was measured at center and horizontal eccentricity between 35° temporal to 35° nasal visual field (in 5° steps). Results: SVCL showed an increase in peripheral hyperopic defocus at the nasal and temporal visual field compare with baseline, but this change was not statistically significant (p=0.129). Conclusion: Wearing single vision soft contact lenses increases the relative peripheral hyperopic defocus in myopic schoolchildren.

Effects of Intravitreal Silicone Oil on Subfoveal Choroidal Thickness

2018 ◽  
Vol 239 (2-3) ◽  
pp. 159-166 ◽  
Author(s):  
Saeed Karimi ◽  
Morteza Entezari ◽  
Homayoun Nikkhah ◽  
Hamed Esfandiari ◽  
Tahereh Darvishpoor ◽  
...  
Keyword(s):  
Choroidal Thickness ◽  
Silicone Oil ◽  
Subfoveal Choroidal Thickness

scholarly journals Subfoveal Choroidal Thickness in Relation to Age and Refractive Error

2018 ◽  
Vol 86 (6) ◽  
pp. 1679-1681
Author(s):  
SAFAA GALAL, M.Sc.; MOHAMMAD M. KHAFAGY, M.D. ◽  
HEBA M. AHMED, M.D.; SOHEIR M. ESMAT, M.D.
Keyword(s):  
Refractive Error ◽  
Choroidal Thickness ◽  
Subfoveal Choroidal Thickness

scholarly journals Choroidal Thickness in Chinese Children Aged 8 to 11 Years with Mild and Moderate Myopia

2018 ◽  
Vol 2018 ◽  
pp. 1-7
Author(s):  
Ya Qi ◽  
Li Li ◽  
Fengju Zhang
Keyword(s):  
Refractive Error ◽  
Axial Length ◽  
Choroidal Thickness ◽  
Narrow Range ◽  
The Other ◽  
Chinese Children ◽  
Healthy Children ◽  
Spherical Equivalent ◽  
Subfoveal Choroidal Thickness

Purpose. To investigate macular choroidal thickness (CT), topographical variation, and associations between subfoveal choroidal thickness (SFCT) and age, gender, spherical equivalent (SE), and axial length (AL) in Chinese healthy mild and moderate myopia children aged 8 to 11 years. Methods. One hundred twenty eyes from 120 healthy children were studied. Children were divided into mild and moderate myopia groups. AL and CT were evaluated. CTs were measured at the fovea, and 1 mm, 2 mm, and 3 mm nasal, temporal, superior, and inferior to the fovea. Results. SFCT was 252.80 ± 46.95 µm in the whole population. AL was shorter in the mild myopia group (24.18 ± 0.69 mm) than in the moderate myopia group (24.97 ± 0.68 mm, P<0.001), and SFCT was thicker in the mild myopia group (262.00 ± 40.57 µm) than in the moderate myopia group (236.00 ± 55.08 µm, P=0.005). The topographical variation was similar in refraction groups. CTs nasal to the fovea thinned gradually and were all significantly thinner than SFCT. CTs in the other three directions gradually thickened and peaked at locations of 2 mm to the fovea. Then, CTs thinned at 3 mm to the fovea. The thickest choroid is located temporal to the fovea. There were significant negative correlations between AL and SFCT in the mild myopia group and the whole population. No other correlations were found. Conclusions. The topographical variations of choroidal thickness were similar in mild and moderate myopia groups with the thickest locations temporal to the fovea. SFCT was relatively stable in children in narrow range of age and refractive error.

Choroidal Thickness Increase After Latanoprost Treatment

2001 ◽  
Vol 71 (3) ◽  
pp. 29-33
Author(s):  
Ileana Ramona Barac ◽  
Claudia Mehedintu ◽  
Andreea Diana Barac ◽  
George Balta ◽  
Lacramioara Brinduse ◽  
...  
Keyword(s):  
Optical Coherence Tomography ◽  
Intraocular Pressure ◽  
Choroidal Thickness ◽  
Prostaglandin Analogue ◽  
Newly Diagnosed ◽  
Post Intervention ◽  
Thickness Increase ◽  
Subfoveal Choroidal Thickness ◽  
Before And After ◽  
Glaucoma Treatment

Latanoprost is the first prostaglandin analogue introduced for glaucoma treatment whose action is not fully understood until today. The purpose of this study is to evaluate the effect of latanorpost on choroidal thickness in a group of 16 eyes in patients newly diagnosed with glaucoma using last generation OCT (Optical Coherence Tomography). The IOP (intraocular pressure) and the subfoveal choroidal thickness were measured before and after one week, one month, 3 and 6 months of treatment with latanoprost. The subfoveal choroidal thickness was 219.2�63.8�m before treatment and 255.6�76.4�m after one week of treatment. Increased thickness of the choroid seven days post-intervention correlates with decreased intraocular pressure from 29.0�3.2mmHg pre-intervention to 17.6�3.1mmHg p[0.001 (p=0.018). The results of this study confirm the idea of latanoprost uveoscleral alternative drainage increase.

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