The improvement of diagnostic levels for fundus diseases depend on the advancements of fundus imaging technology. Different fundus imaging technologies allow doctors to inspect ocular fundus from different aspects such as morphological or functional changes of retina. As a basic fundus examination method, optical coherence tomography provides highresolution and crosssectional retinal images coupled with noninvasive advantages. Fully understanding of the advantages and disadvantages of each fundus imaging technique, appropriate choosing one or combining several imaging techniques, and optimizing diagnostic procedures for each fundus disease are crucial steps to improve our diagnostic levels of ocular fundus diseases.
Optical coherence tomography angiography (OCTA) is a new diagnostic technique in recent years based on the optical coherence tomography. It is one of the fastest developing imaging examinations in ophthalmology. Compared with the classic diagnostic methods of fundus fluorescein angiography and indocyanine green angiography, OCTA show the ability to reveal blood flow non-invasively. With the development of modern medical detection technology, the requirement for ophthalmic diagnosis is raised, and many new measurement methods begin to apply in research and clinical, which makes the detection methods in the field of ophthalmology more accurate and comfortable. OCTA is a novel and noninvasive flow imaging technique, and it has the advantages of high resolution, fast scanning, as w ell as quantifying blood flow. Meanwhile, this technique can not only qualitatively analyze the shape of ocular blood vessels, but also be able to measure the ocular blood vessels and blood flow non-invasively, as well as to assess the depth of lesions. At present, with a wide clinical application in ophthalmology, OCTA still has its own superiority and weakness, but with the development of technology. It is believed that the OCTA will be expected to replace the relevant invasive examination methods and become a new tool for ophthalmic imaging.
With the rapid development of ophthalmic imaging methods, there are many ways of examination in the diagnosis and treatment of fundus diseases, such as FFA, ICGA, FAF, OCT and emerging blood vessels by OCT angiography in recent years. Multi-model image can understand the changes of anatomical structure and function of different levels and parts of the fundus from different aspects. A variety of imaging examinations are combined and complemented each other, which makes us have a further understanding of the location and pathological changes of many fundus diseases. But at the same time, the emergence of multi-modal images also brings a series of problems. How to standardize the use of multi-modal imaging platform to better serve the clinic is a problem that ophthalmologists need to understand.
We have studied retrospectively 13 eyes with postoperative choroidal detachment of retinal detachment surgery in 126 cases(129 eyes).The frequency of choroidal detachment in this series is 10.1%(13/129).And we found that the middle-aged patients were more common sufferers,and drainaging the subretinal fluid,the extent of retinal degeneration and the buckling procedure might be the related factors to the occurence of postoperative choroidal detachment of retinal detachment surgery. （Chin J Ocul Fundus Dis,1993,9:210-213）
The treatment for retinoblastoma (RB) has been reached the stage of life-saving and vision-saving care. It is necessary to improve the survival rate and prolong the life time of RB children, retaining the eyeball and improving the quality of life. If the diagnosis is not timely and the treatment is inappropriate, the tumor recurrence, extraocular spread and metastasis of retinoblastoma will occur. The rate of eye protection and the survival chance of RB children will be reduced. With the continuous exploration of RB therapy and the emergence of new treatment methods, how to correctly select and evaluate these treatment methods and to adopt the most safe and effective treatment for RB children, to achieve long-term cure effect, is an important problem which clinicians need to consider.
Immunogammopathy maculopathy is a newly discovered retinopathy associated with macroglobulinemia in recent years. The main manifestations were retinal vein convulsion and dilation caused by high blood viscosity, retinal interlaminar effusion and macular serous detachment. With the prolongation of the course of disease, the photoreceptor layer and RPE layer in the detachment area showed atrophic changes. The pathogenesis of ophthalmopathy is still unknown. Understanding the clinical features, diagnosis, differential diagnosis and treatment of ophthalmopathy is of great significance for understanding this kind of disease and improving the level of diagnosis and treatment of ophthalmopathy.