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1.
Medicine and Health ; : 88-96, 2018.
Article in English | WPRIM | ID: wpr-732337

ABSTRACT

Anti-vascular endothelial growth factor (VEGF) reduces choroidal thickness by choroidal hypoperfusion in diabetic macula oedema (DME) patients. Indirect effect of anti-VEGF towards outer retinal layers (ORL) which supplied by choroidal circulation has not been well described. We evaluate the ORL thickness between retinal pigment epithelium (RPE) with inner-segment-outer-segment photoreceptor junction (IS/OS) and RPE with external limiting membrane (ELM) in pre- and post-intravitreal Ranibizumab (IVR) treated eyes with central foveal diabetic macula edema. A total of 60 eyes (40 patients) were analysed. ORL thickness measured with optical coherence tomography at pre- and post-injection day 1, week 4 and week 6. Mean thickness of RPE-IS/OS was statistically significant over time (p=0.023) but not for RPE-ELM (p=0.216). Thickness ratio between RPE-IS/OS and RPE-ELM and central subfoveal thickness (CST) both showed statistically significant result over time with p=0.038 and p=0.000, respectively. We observed an initial reduction of ORL thickness at day 1 followed by increased in thickness at week 4 with subsequent reduction at week 6 was observed. ORL is an aspect that can be explore and emphasized further in patients considered for IVR injections. The long-term effects of IVR to the ORL however could not be concluded due to short follow up period.

2.
Arq. bras. oftalmol ; 79(5): 319-322, Sept.-Oct. 2016. tab, graf
Article in English | LILACS | ID: biblio-827976

ABSTRACT

ABSTRACT Purpose: This study was conducted to evaluate the relationships of inner/outer segment (IS/OS) junction disruption, macular thickness, and epiretinal membrane (ERM) grade with best-corrected visual acuity (BCVA), as well as the relationship between IS/OS junction disruption and ERM grade. Methods: Fifty-four eyes of 54 patients with different grades of ERM were retrospectively reviewed. Patients were classified into three groups by ERM grade according to retinal striae and vessel distortion: grade/group 1, visible membranes without retinal striae or vessel distortion; grade/group 2, mild to moderate macular striae or vessel straightening; and grade/group 3, moderate to severe striae and vascular straightening. Correlations of BCVA with age, central retinal thickness, ERM grade, and IS/OS disruption as well as of IS/OS disruption, central macular thickness, and BCVA with ERM grade were evaluated. Results: Twenty-nine (53.7%) eyes exhibited IS/OS junction disruption. Groups 1 and 2 differed significantly with respect to BCVA (p=0.038), but groups 2 and 3 did not (p=0.070). Central macular thickness was significantly greater in group 2 than in group 1 (p=0.031) and in group 3 than in group 2 (p=0.033). Groups 1 and 2 differed significantly in terms of IS/OS disruption (p=0.000), but groups 2 and 3 did not (p=0.310). Conclusions: The IS/OS junction appears to be disrupted during the early stages of ERM. Grade 3 ERM is associated with a significantly higher incidence of IS/OS disruption.


RESUMO Objetivo: Este estudo foi realizado para avaliar a relação entre a interrupção da junção segmento interno/segmento externo (IS/OS), espessura macular e grau de membrana epirretiniana (ERM), com a melhor acuidade visual corrigida (BCVA), e a relação entre a interrupção da junção IS/OS com a severidade da ERM. Métodos: Cinquenta e quatro olhos de 54 pacientes com diferentes graus de ERM foram avaliados retrospectivamente. ERMs foram classificadas, de acordo com as estrias de retina e a distorção dos vasos, em 3 grupos: grupo 1 foram membranas visíveis sem estrias retinianas ou distorção dos vasos, grupo 2 membranas com estrias maculares discretas a moderadas ou retificação dos vasos, e grupo 3 membranas com estrias moderadas a graves e retificação vascular. A correlação da BCVA com a idade, espessura central da retina, severidade da ERM e interrupção da junção IS/OS foram avaliadas. A relação de interrupção da junção IS/OS, a espessura macular central e acuidade visual com a severidade da ERM também foram avaliadas. Resultados: Vinte e nove olhos (53,7%) apresentavam interrupção da junção IS/OS. A BCVA foi diferente entre ERMs grupo 1 e grupo 2 (p=0,038), a diferença entre o grupos 2 e 3 não foi estatisticamente significativa (p=0,070). A espessura macular central foi estatisticamente maior no grupo 2, quando comparado ao grupo 1 (p=0,031) e maior no grupo 3 quando comparado ao grupo 2 (p=0,033). A diferença entre o grupo 1 e grupo 2 em relação à interrupção da junção IS/OS foi estatisticamente significativa (p=0,000), ao passo que a diferença entre o grupo 2 e do grupo 3 não foi estatisticamente significativa (p=0,310). Conclusões: As junções IS/OS parecem estar interrompidas nos estágios iniciais da ERM. O grau 3 de ERM têm uma maior incidência significativa de interrupção da junção IS/OS.


Subject(s)
Humans , Male , Female , Adult , Middle Aged , Aged , Aged, 80 and over , Epiretinal Membrane/pathology , Retinal Photoreceptor Cell Inner Segment/pathology , Retinal Photoreceptor Cell Outer Segment/pathology , Macula Lutea/pathology , Severity of Illness Index , Visual Acuity , Linear Models , Retrospective Studies , Age Factors , Epiretinal Membrane/diagnostic imaging , Tomography, Optical Coherence/methods , Macula Lutea/diagnostic imaging
3.
Arq. bras. oftalmol ; 77(4): 219-221, Jul-Aug/2014. tab
Article in English | LILACS | ID: lil-728654

ABSTRACT

Purpose: In this study, we examined the spectral domain optical coherence tomography (OCT) findings of ocular Behçet's disease (OB) in patients with inactive uveitis. Specifically, we analyzed the inner and outer segment junction (IS/OS line) integrity and the effect of disturbed IS/OS line integrity on visual acuity. Methods: Patient files and OCT images of OB patients who had been followed-up between January and June of the year 2013 at the Dicle University Eye Clinic were evaluated retrospectively. Sixty-six eyes of 39 patients were included the study. Results: OCT examination of the patients with inactive OB revealed that approximately 25% of the patients had disturbed IS/OS and external limiting membrane (EML) line integrity, lower visual acuity (VA), and lower macular thickness than others. Linear regression analysis revealed that macular thickness was not an independent variable for VA. In contrast, the IS/OS line integrity was an independent variable for VA in inactive OB patients. Conclusion: In this study, we showed that the IS/OS line integrity was an independent variable for VA in inactive OB patients. Further prospective studies are needed to evaluate the integrity of the IS/OS line in OB patients. .


Objetivo: Neste estudo, examinamos os achados da tomografia de coerência óptica (OCT) de domínio espectral na doença de Behçet ocular (OB) em pacientes com uveíte inativa. Especificamente, analisamos a integridade da junção dos segmentos interno e externo (linha IS/OS) e o efeito da alteração da integridade da linha IS/OS na acuidade visual. Métodos: Avaliamos retrospectivamente os prontuários e as imagens de OCT dos pacientes com OB examinados entre janeiro e junho de 2013 na Dicle University Eye Clinic. Sessenta e seis olhos de 39 pacientes foram incluídos no estudo. Resultados: Análise das imagens de OCT dos pacientes com OB inativa revelou que aproximadamente 25% dos pacientes tinham alterações da integridade da linha IS/OS e da membrana limitante externa (ELM), e apresentavam acuidade visual (VA) e espessura macular menor do que os outros. A análise de regressão linear revelou que a espessura macular não é uma variável independente para VA. Por outro lado, a integridade da linha IS/OS foi uma variável independente para VA em pacientes com OB inativa. Conclusão: Neste estudo, nós mostramos que a integridade da linha IS/OS foi uma variável independente para a VA em pacientes com OB inativa. Precisamos de mais estudos prospectivos para avaliar a integridade da linha IS/OS em pacientes com OB. .


Subject(s)
Humans , Behcet Syndrome/pathology , Retinal Photoreceptor Cell Inner Segment/pathology , Retinal Photoreceptor Cell Outer Segment/pathology , Tomography, Optical Coherence , Visual Acuity/physiology , Behcet Syndrome/physiopathology , Retrospective Studies
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