Objective To compare the time and rate of taking out heavy silicone oil between the two methods, in order to discuss the safety and effectiveness of the modified device method for taking out heavy silicone oil. Methods Prospective clinical controlled study. A total of 36 patients (36 eyes) who underwent vitreous cavity heavy silicone oil extraction in Jinan Mingshui Eye Hospital from June 2020 to June 2021 were collected, of which 18 eyes were extracted with modified heavy silicone oil (group A), and 18 eyes were treated with conventional heavy silicone oil was removed (group B). Group A used a modified heavy silicone oil extraction device, connecting the 20G flute needle to a 10ml syringe, and the back end to the vitrectomy instrument; Group B used the conventional method of heavy silicone oil extraction, connecting the 19G intravenous indwelling needle to a 10ml syringe, and the back end to the vitrectomy instrument. The time and speed of oil extraction and the occurrence of complications in the two groups were recorded. The data between the two groups were compared by paired samples t test. Results The heavy silicone oil extraction time of groups A and B were (7.31±1.36) min and (10.19±2.17) min respectively, and the difference was statistically significant. The oil extraction rates of groups A and B were (0.70±0.04) ml/min and (0.50±0.02) ml/min, respectively, and the difference was statistically significant. There was no statistical significance in the heavy silicone oil tamponade time between the two groups. There were no other serious complications during and after operation in all patients in the two groups. Conclusion: The two heavy silicone oil extraction methods are safe and effective, and the modified heavy silicone oil extraction method has a shorter time and higher efficiency.
In order to make ophthalmic surgical draping safer, more convenient and easier to operate, this research team invented an ophthalmic surgical drape [patent number: National Utility Model Patent (ZL 201921410018.3)] based on the original ophthalmic surgical drape, adding functions such as various sizes, marking and positioning,and glutinosity. This kind of ophthalmic surgical drape is made of disposable waterproof non-woven fabric, which has the characteristics of various specifications, simple structure, easy operation and strong function of aseptic barrier, which can better meet the requirements of disinfection drape before ophthalmic surgery than the original drape.
To meet the needs of the postoperative position nursing after pars plana vitrectomy in the day surgery mode,this research team has designed a nursing chair [patent number: National Uutility Model Patent (ZL 201720942404. 1)] based on the original chair of ophthalmic day ward, adding the functions of postvitreous nursing and so on. The seat is made from steel spray plastic (or stainless steel), wood, sponge and artificial leather, and the structure mainly consists of the main body, the countertop for prone position, the junk basket, the storage rack, and the infusion rod sleeve. The seat can be made by simple materials. The seat is easy to operate and safe to use, which can not only meet the needs of clinical body position nursing care, but also save the ward’ space and facilitate the environmental management of the ward.
Objective The rabbit model of lumbar disc with severe degenerative was established and identified. Methods Six New Zealand white rabbits were selected, lumbar X-ray and Pfirrmann grade by MR scan were performed before surgical intervention. Along the space of outer margin of right obliquus externus abdominis and dorsal lumbar muscle, the front edge of L2 to L3 was exposed. Then, the nucleus pulposus and part of annulus fibrosus were removed to imitate severe degeneration of lumbar disc. After 6 weeks of rearing, the operated lumbar disc was graded by MR scan, confirming that the lumbar disc met the image of severe degeneration, and then revealed the intervertebral space and injected bone cement. One week later, the anterior lumbar X-ray and the MRI scan for Pfirrmann grading were taken. The animals were sacrificed and dissected to check the bone cement filling in the intervertebral disc. Results The rabbit MR Pfirrmann grade of intervertebral disk was V after 6 weeks of first operation. One week after intervertebral cement injection, the MR Pfirrmann grade was Ⅳ. The surgical segment X-ray was taken one week after the cement injection, which showed that the cement was well filled in the L2-L3 gap and the vertebral space height was close to normal. Animals were sacrificed and dissected, the lumbar intervertebral disc was well filled with cement without shedding or loosening. Conclusions A reliable animal model of lumbar disc with severe degenerative in New Zealand white rabbits can be obtained by injecting cement into the intervertebral space after 6 weeks of removal of the intervertebral disc nucleus pulposus and part of the annulus fibrosus through the external abdominal oblique and psoas major intervertebral space approach.
Objective: To share the nursing experience of RetCam3 ultra-widefield oral fluorescein fundus angiography (FFA) in infants with fundus diseases. Methods: Seventy-eight infants with fundus diseases admitted to General Department of Pediatric Ophthalmology in Zhongshan Ophthalmic Center, Sun Yat-sen University from August 2018 to December 2019 were recruited. Oral FFA was carried out using the 130-degree lens of RetCam3, and the key points of nursing were summarized. Results: No complications related to the examination and drugs occurred after oral FFA with an appropriate nursing manner. FFA confirmed 26 cases of familial exudative vitreoretinopathy,23 cases of retinopathy of prematurity and 6 cases of pigment incontinence. Vitreous hematoma was observed in 3 patients, retinoblastoma in 3 patients, Morning Glory syndrome in 1 patient, retinitis pigmentosa in 3 patients,Ascaris lumbricoides eye disease in 1 case, original permanent vitreous body in 2 patients, unexplained fundus lesions in 5 patients, monocular retinal fold in 1 patient, congenital micro-eyeball in 1 patient, cytomegalovirus infection in 1 patient, congenital macular dysplasia 1 patient and Coats disease in 1 patient. Conclusion: Oral FFA with RetCam3 is an effective and safe detection method for infants. Standard and proper nursing can ensure the examination can be performed accurately and smoothly.
Pachychoroid disease spectrum include pachychoroid pigment epitheliopathy, central serous chorioretinopathy, pachychoroid neovasculopathy, polypoidal choroidal vasculopathy, focal choroidal excavation, and peripapillary pachychoroid syndrome.Currently, some scholars regard pachychoroid disease spectrum as a series of continuous disease processes caused by choroidal dysfunction, but the pathogenesis and morphological changes of pachychoroid disease spectrum are not yet clear. This paper reviews the changes of choroid, vortex veins and sclera in pachychoroid disease spectrum.
Subretinal fibrosis is the most common natural sequela of wet age-related macular degeneration (wAMD) and can cause damage to photoreceptors, RPE, and choroidal capillaries, leading to irreversible loss of central vision. Multiple baseline characteristics have been found to be risk factors for subretinal fibrosis and can be used to guide the prediction of early subretinal fibrosis. Anti-vascular endothelia growth factor (anti-VEGF) therapy cannot prevent the development of fibrosis, but various molecular targeted drug are being developed to anti-fibrotic therapy. This article reviews the clinical manifestations and significance of subretinal fibrosis in wet age-related macular degeneration, the baseline characteristics of fibrosis, basic pathogenesis and potential anti-fibrotic therapies.
Amblyopia?is?one?of?the?most?common?visual?disorders?in?children.?There are two main theories on?the?pathogenesis?of?amblyopia: central theory and peripheral theory.?However, the pathogenesis is complex?and?the?specific?reasons?are?not?yet?fully?understood.?The traditional belief in the past was that there were no organic changes in the eyes of patients with amblyopia. However,?due?to?the?rapid development?of?optical?coherence?tomography?(OCT)?technology?in?recent?years?and?the?widespread application of?OCT,?more and more researchers have conducted in-depth research on amblyopia patients and discovered abnormal anatomical structures in the fundus of the eyes. This article reviews the application of OCT in the study of retinal nerve fiber layer thickness in amblyopic patients.
Irvine-Gass syndrome is one of the complications after cataract surgery, which has a serious impact on the visual function of patients. The Macular edema of some patients tend to resolves spontaneously, active treatment is helpful to the recovery of visual function. In this paper, we reviewed a case of Irvine-Gass syndrome treated with dexamethasone intravitreal implant, which recovered well after treatment.
