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oe1(光电查) - 科学论文

25 条数据
?? 中文(中国)
  • Clinical Features and Surgical Outcomes of Primary Rhegmatogenous Retinal Detachment according to Age

    摘要: Purpose: To investigate the clinical features and surgical outcomes of rhegmatogenous retinal detachment (RRD) requiring surgery according to age. Methods: Medical records of patients who underwent surgery for primary RRD between January 2008 and March 2016 were reviewed retrospectively. Patients were classified into two groups according to age at diagnosis: the under-40 group and the over-40 group. The two groups were compared in terms of demographic features, ocular manifestation, operating methods, primary anatomical success rate, and visual outcome. Results: One hundred and forty-four eyes from 144 patients were included. Mean subject age was 48.6 ± 16.9 years old. The under-40 group involved 42 eyes from 42 patients, and the over-40 group included 102 eyes from 102 patients. Symptom duration was shorter in the under-40 group compared to the over-40 group (7.6 ± 10.7 days vs. 14.5 ± 24.4 days; p = 0.029). Proliferative vitreoretinopathy (PVR) occurred more frequently in the under-40 group (40.0% vs. 17.4%, p = 0.007) than in the over-40 group. The anatomical success rate of primary surgery was significantly different between the two groups; 78.6% in the under-40 group and 91.2% in the over-40 group (p = 0.038). Preoperative PVR increased the rate of anatomical failure (40.0% vs. 6.2%, p < 0.001). The visual outcomes were not significantly different between the two groups. Conclusions: RRD is combined with PVR more frequently in young patients than in old patients, which increases the failure rate of primary re-attachment surgery.

    关键词: Rhegmatogenous retinal detachment,Vitrectomy,Age,Scleral buckling,Proliferative vitreoretinopathy

    更新于2025-09-09 09:28:46

  • Evaluation of systemic risk factors in different optical coherence tomographic patterns of diabetic macular edema

    摘要: ● AIM: To elucidate the relationship between systemic risk factors and different patterns of diabetic macular edema (DME) determined with optical coherence tomography (OCT). ● METHODS: In this cross-sectional study, DME was classified by OCT as diffuse retinal thickness (DRT), cystoid macular edema (CME) and serous retinal detachment (SRD) and the relationship between the systemic risk factors and DME patterns was evaluated. ● RESULTS: Of the 57 patients with DME, 21 (36.8%) had DRT, 24 (42.1%) had CME and 12 (21.0%) had SRD. Micro- or macro-albuminuria was significantly higher in the DRT pattern (61.9%) compared with the SRD (50.0%) and CME patterns (25.0%; P=0.040). Hemoglobin A1c (HbA1c) level was significantly higher and patients were younger in the DRT pattern group (P=0.034, P=0.032). Best corrected visual acuity was the worst and central macular thickness was the thickest in the CME pattern group. ● CONCLUSION: Micro- or macro-albuminuria may be more frequent and HbA1c level may be higher in patients with DRT. These patients are also seen to be younger than patients with non-DRT.

    关键词: diabetic macular edema,optical coherence tomography,serous retinal detachment,diffuse retinal thickness,cystoid macular edema

    更新于2025-09-04 15:30:14

  • Drusenoid retinal pigment epithelium detachments

    摘要: The authors make a review of drusenoid retinal pigment epithelium detachments(DPDs), a form of retinal pigment epithelium detachment(PED) that evolves from confluent and large soft drusen.Drusenoidretinal pigment epithelial detachments are a recognized element of the “dry” AMD. Until now, no treatment is indicated in drusenoid PEDs. The authors describe the clinical characteristics of drusenoid retinal pigment epithelium detachments (DPEDs) and make a review of the DPEDs related in the international literature. We related in this revision paper the multimodal advanced image exams in two cases of dusenoid retinal pigment epithelium detachments (DPEDs) and the general characteristics of thisfinding associated with Dry Macular degeneration.Upon examination of the ocular fundusDPEDs emerge as well-circumscribed yellow or yellow–white elevations of the RPE that are usually found within the macula.They may show scalloped borders and a slightly irregular surface. When visualized using fluorescein angiography (FA),DPEDs are typically described as faint hyper-fluorescent in the early phase followed by a slow increase in fluorescence throughout the transit stage of the study without late leakage. With optical coherence tomography (OCT), drusenoid PEDs usually show a smooth contour of the detached hyperreflective RPE band that may have an undulating appearance.Drusenoid PEDs encompass far above the ground possibility type of “dry” AMD that develops in relationship with large confluent soft drusen.At this point no treatment is utilized in drusenoid retinal pigment epithelium detachment(DPEDs).

    关键词: Macular degeneration,Aged,Fluorescein angiography,Age factors,fundus oculi,Retinal detachment,Retinal drusen

    更新于2025-09-04 15:30:14

  • Removal of Silicone Oil From Intraocular Lens Using Novel Surgical Materials

    摘要: To design, fabricate, and evaluate novel materials to remove silicone oil (SiO) droplets from intraocular lenses (IOL) during vitreoretinal surgery.

    关键词: IOL,silicone oil,tamponade,PDMS,vitrectomy,lithography,oleophilicity,super hydrophobicity,retinal detachment,ALD

    更新于2025-09-04 15:30:14

  • Spectral domain optical coherence tomography imaging of subretinal bands associated with chronic retinal detachments

    摘要: We report three patients with subretinal bands associated with retinal detachment in chronic retinal detachments who underwent successful retinal reattachment. Subretinal bands before and after surgery can be identified on clinical examination and spectral domain optical coherence tomography. Removal of subretinal bands is not mandatory to achieve retinal reattachment.

    关键词: optical coherence tomography,retinal detachment,subretinal bands

    更新于2025-09-04 15:30:14