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Objective:To analyze the distribution characteristics of peripheral retinopathy in Chinese patients with diabetic retinopathy (DR).Methods:A cross-sectional study. From January to December 2019, 265 cases of 388 eyes of DR patients diagnosed in the eye examination of Guangdong Provincial People's Hospital were included in the study. Among them, there were 211 eyes in 148 males and 177 eyes in 117 females; the average age was 58.4±12.3 years. Ultra-wide-angle fundus imaging (UWF) examination was performed by Daytona in Aalborg, UK. Use Photoshop to simulate the standard 7-azimuth (S7F) area, which was used as the central retinal area 1-7. The peripheral retinal areas 3-7 (P3-P7) were the adjacent peripheral retinal areas of the central retinal area 3-7, respectively. Divided DR into peripheral lesion predominant type (PPL) and central lesion predominant type (PCL). PPL was defined as at least one peripheral retinal area with more severe disease than its adjacent central area. χ 2 test was performed on the difference of PPL composition ratio in each retinal area of eyes with different DR stages. Results:Among 388 eyes, 200 eyes were PPL (51.5%, 200/388). Compared of PPL composition ratios of eyes with different stages of DR, mild non-proliferative DR (NPDR), moderate NPDR, severe NPDR and proliferative DR were 32 (36.8%, 32/87), 89 (55.3%, 89/161)), 42 (51.9%, 42/81), 37 (62.6%, 37/59), the difference was statistically significant ( χ2=11.440, P=0.010). Comparison of the distribution of PPL in each retinal area in DR eyes: in 200 PPL eyes, areas 3, 4, 5, 6, and 7 have 87, 101, 78, 67, and 38 eyes, respectively. The distribution of PPL in each retinal area in DR eyes was compared, and the difference was statistically significant ( χ2=37.640, P<0.001). Conclusions:PPL accounts for 51.5% of the eyes with DR. The DR stage are more severe, the proportion of PPL is higher. The temporal retinal peripheral lesions are the most common.
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@#Familial exudative vitreoretinopathy(FEVR)is an inherited vitreoretinopathy characterized by vascular dysplasia of periphery retina. Typical fundus findings consist of avascular periphery retina, increasing branching and abnormal anastomosis of retinal vessels. Having diversified clinical phenotypes, FEVR patients can be asymptomatic, which can often be missed, or with severe complications including retinal detachment, retinal folds, vitreous hemorrhage, causing vision loss. While FEVR had been thought to be rare in previous studies, the incidence was found to reach up to 1% in recent studies of fundus screening in the newborn. Diagnosis is usually based on clinical features, fundus fluorescein angiography, and detection of pathogenic genes. Ultra-wide-field imaging is a noninvasive and convenient way for the screening and diagnosis of FEVR. In this review,clinical features and diagnostic approaches of FEVR are concluded, and application value of ultra-wide-field imaging in its screening is discussed.
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Diabetic retinopathy (DR) is one of the leading causes of visual impairment among adults worldwide. As a novel fundus imaging technology in recent years, ultra-wide-field imaging can capture approximately 80% of the retina surface with the advantages of wide image, easier operation, more rapid acquisition, no pupil dilation and high resolution. It is useful in identifying latent peripheral lesions and improving positive detection rate of DR. It will assess the pathogenesis of periphery retina in DR comprehensively, promote development of classification and laser photocoagulation, reduce the incidence of neovascular glaucoma, and play an important role in restraining pathological development. This article presented a review on the clinical value and research advances of ultra-wide-field imaging in DR.
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Aims: This study aims to evaluate the use of ultra‑wide field (UWF) angiography in patients with Eales disease (ED). Settings and Design: Prospective observational case series in tertiary eye care center. Subjects and Methods: This study involved 17 patients diagnosed with ED, who underwent UWF fluorescein angiography. The angiograms were analyzed to look for additional information as compared to Early Treatment Diabetic Retinopathy Study seven standard field. The impact of this information in the management of patients was analyzed. Results: 24 eyes of 17 patients with mean age of 26.3 years were diagnosed with ED and underwent UWF angiography. UWF fluorescein angiography was helpful in the documentation of peripheral retinal changes (in 67% of eyes), exact localization of capillary nonperfusion (CNP) (in 54% of eyes), and in determination of vascular involvement (in 21% of eyes). In 33% of eyes, immediate treatment plan changed because of changes picked up on UWF angiography. Conclusions: UWF angiography helped in the better documentation, exact quantification, and location of CNP areas and better determination of disease activity. UWF imaging may play an important part in the management of patients with ED.
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PURPOSE: To evaluate the availability of ultra-wide-field fundus photography compared to fundus examination after pupil dilatation in Korean patients with retinal break. METHODS: For this retrospective case review of consecutive 160 patients, 230 lesions with retinal breaks were recruited. The ultra-wide-field images were taken after fundus examination with pupil dilatation performed by a retinal specialist. We analyzed ultra-wide-field images according to patient characteristics and separated area. We divided lesions into anterior and posterior areas, and each area was separated into 4 quadrants (superior, inferior, temporal, and nasal). RESULTS: The sensitivity of ultra-wide-field imaging for detecting retinal break was 72% (95% confidence interval [CI] 65-79%), and the specificity was 94% (95% CI 90-98%). The sensitivity of detection of posterior retina was 89% (95% CI 85-93%), and that of anterior retina was 72% (95% CI 66-78%); this difference was significant (p = 0.007). There was a significant statistical difference at the inferior quadrant between anterior and posterior retina, but not at superior, temporal, or nasal quadrants. The sensitivity of detection in the inferior quadrant in the anterior retina was 43% (95% CI 29-57%). CONCLUSIONS: Ultra-wide-field fundus photography can detect retinal break, but there is limitation in anterior retinal lesions, especially the inferior area. Therefore, ultra-wide-field fundus photography cannot be an alternative method instead of fundus examination with pupil dilatation.
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Humans , Dilatation , Methods , Photography , Pupil , Retina , Retinal Perforations , Retinaldehyde , Retrospective Studies , Sensitivity and Specificity , SpecializationABSTRACT
PURPOSE: To Report A Case Of Atypical Acute Retinal Necrosis (Arn) Observed Using Ultra-wide-field Imaging. CASE SUMMARY: A 50-year-old male with recurrent oral ulcer presented with visual loss in his right eye. On the initial visit, slit-lamp examination showed inflammatory cells (3+) in the anterior chamber and vitreous of the right eye. Funduscopic examination and ultra-wide-field fundus images showed severe occlusive vasculitis with perivascular hemorrhage. No necrotic lesion was observed at the peripheral retina in the left eye. Under the impression of Behcet's uveitis, immunosuppressive therapies including oral steroid, intravenous cyclophosphamide, anti-tumor necrosis factor (TNF) alpha agent and intravitreal triamcinolone were administered, but without improvement. Subsequently, a necrotic lesion appeared at the far peripheral retina in the right eye and varicella-zoster virus was identified using the polymerase chain reaction test. After the patient was diagnosed with atypical ARN, intravenous acyclovir was administered, resulting in eventual suppression of the necrotic lesion progression. Due to retinal detachment, pars plana vitrectomy with silicone oil infusion was performed in the right eye. At that time, a whitish lesion at the far peripheral retina in the ultra-wide-field photography of the fellow eye was found and 3 intravitreal ganciclovir injections were administered. Finally, the whitish lesion regressed after 1 month. CONCLUSIONS: Ultra-wide-field imaging might be useful for diagnosis and follow-up of atypical ARN patients.