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Objective To predict the prevalence of myopia among Chinese students aged 6-18 years under different intervention scenarios from 2021 to 2030. Methods The multi-state Markov model was developed based on the transition process of study stages and myopia statuses. The development of myopia was simplified into two statuses non-myopia and myopia. see more Students aged 6-18 years were also divided according to their study stages including senior kindergarten, primary school (from Grade 1 to 6), junior school (from Grade 1 to 3) and high school (from Grade 1 to 3). The parameters were extracted from the National Myopia Investigation in 2018 and published articles of cohort studies. The transition probability was applied to simulate the intervention scenarios, and sensitivity analysis was carried out. Results The cumulative incidence of myopia among Chinese school-aged children and adolescents would increase consistently. It would be 91.3% (min to max 83.7% to 96.7%) upon graduation from high school. Without any intervention, the myopia prevalence would increase to 61.8% (min to max 55.4% to 69.5%) by 2030 among Chinese school-aged children and adolescents. And the myopia prevalence among students in primary schools, junior schools and high schools would be 45.6% (min to max 40.2% to 54.3%), 81.3% (min to max 72.6% to 91.0%) and 90.5% (min to max 82.4% to 96.7%), respectively, all higher than the national target. If the interventions could achieve 70% of the desired effect, the myopia prevalence would be lower than the national target at each stage. Conclusions Without effective interventions, the prevalence of myopia among students aged 6-18 years may keep increasing in the next ten years. If the interventions achieve the desired effect, the national target for myopia prevention and control could be reached. It is urgent to identify more effective interventions and call on the whole society to participate in the myopia prevention action to achieve the national goal by 2030. (Chin J Ophthalmol, 2021, 57 261-267).Eye burns, which are usually caused by chemicals such as acidic, alkaline and heat-related substances, are true medical emergencies. These substances can lead to potential permanent damage to the eyelids, cornea, ocular surface and intraocular tissues. In severe cases, eye burns may result in blindness. Currently, there is a lack of uniform and standardized guidelines for the diagnosis and treatment of eye burns. As a result, a considerable number of patients have a poor prognosis. Therefore, the Cornea Group of Chinese Ophthalmological Society has developed this consensus statement after thorough discussions, hoping to provide guiding opinions on the clinical diagnosis and treatment of eye burns. (Chin J Ophthalmol, 2021, 57254-260).The concept of diagnosis and treatment of keratoconus is constantly updated. Today, we are not only concerned with how to delay the progress of the disease, but also with the preservation of useful vision for patients as well as improvement of visual quality. With the precise and individualized application of excimer laser and femtosecond laser technology in ophthalmology, corneal cross-linking combined with excimer laser ablation for the irregular cornea has become a new strategy for keratoconus. However, questions have been raised and caused ophthalmologists' thinking. Are patients with keratoconus who have progressively thinned corneas suitable for excimer laser ablation? Which is better when the combined strategy is applied, simultaneous or sequential surgery? Based on the research data from home and abroad, we comprehensively sort out various treatment methods for the focus issues. It is hoped that this article can provide guidance for the rational selection of an optimal clinical solution to keratoconus. (Chin J Ophthalmol, 2021, 57251-253).Adolescent myopia has become one of the researchers' focuses among visual problems around the world. Carrying out a scientific and efficient epidemiological study on myopia is an essential basis for discovering the rules of the occurrence and the development of myopia, exploring related influencing factors and identifying the mechanisms, which are critical for the policy-making for myopia control. The epidemiological studies of myopia at home and abroad have a long history of exploration, standardization and unification, and are enriched by new technologies and up-to-date discoveries. Based on the characteristics of social development and the prevalence of adolescent myopia in the past six decades, the epidemiological studies on myopia are divided into four stages in this article. Each stage is specified and analyzed to identify the difference in research methods and strategies. The main scientific issues and research elements in the current epidemiology of myopia in adolescents are put forward. (Chin J Ophthalmol, 2021, 57245-250).Myopia has emerged as a public health problem with its increasing prevalence in children and adolescents in China. The Chinese government has begun to take action to address this issue in recent years. In 2018, the Implementation Plan of the Myopia Prevention and Control for Children and Adolescents was issued by the Ministry of Education and other seven ministries and commissions. The plan emphasizes the myopia prevention and management will be a powerful national strategy to a major crisis of children's health in China. Based on the current situation and characteristics of myopia in children and adolescents in China, this article analyzes the key points and difficulties of related work, so as to provide scientific ideas and references for prevention and control of myopia in China. (Chin J Ophthalmol, 2021, 57241-244).Guided bone regeneration technique is a conventional method to repair various bone defects among series of techniques for bone augmentation around implant. Due to the excellent mechanical properties and biological compatibility, titanium mesh has unique advantages in the application of guided bone regeneration technology, such as broad clinical indications, high stability in osteogenesis. Though there are still some complications during the application of titanium mesh, a number of studies have tried to prevent the complications, so as to increase the success rate of bone augmentation surgery. This review elaborates the characteristics of titanium mesh, conventional clinical applications, common complications in application, and the research progress of its application and improvement, in order to provide reference for the improvement of titanium mesh in clinical and research applications.