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近视能否治愈?关灯看手机危害有多大?来看专家权威解答
Xin Hua Wang· 2025-06-07 01:25
Core Viewpoint - The increasing use of electronic devices and poor eye care habits are leading to a rise in eye health issues such as myopia and eye fatigue across all age groups [1] Group 1: Myopia Understanding - The distinction between true myopia and pseudo-myopia is best determined through cycloplegic refraction, which involves using a cycloplegic agent to relax the eye muscles before testing [2] - True myopia persists after dilation, while pseudo-myopia may resolve or significantly decrease, indicating it is related to eye strain rather than structural changes [2] - Myopia can be corrected through optical means such as glasses or contact lenses, but it cannot be fundamentally cured as the elongation of the eyeball is irreversible [2] Group 2: Genetic Factors and Myopia - High myopia can be hereditary, particularly when caused by genetic abnormalities, which typically manifests early and at high degrees [2] - Most myopia is influenced by environmental factors, such as excessive near work, and while early onset and rapid progression can lead to severe myopia, this is not directly inherited but rather an increased susceptibility under similar conditions [2] Group 3: Eyewear and Myopia Progression - Wearing glasses does not worsen myopia; in fact, not wearing appropriate eyewear can accelerate its progression [3] - Studies indicate that adolescents wearing properly prescribed glasses experience slower myopia progression compared to those with under-corrected lenses [3] - Regular eye examinations are recommended to ensure that prescriptions remain accurate, especially for children [3] Group 4: Eye Health and Device Usage - Viewing screens in dark environments can be harmful due to increased pupil dilation and exposure to harmful blue light, which may damage the retina over time [4] - Reduced blinking while focusing on screens can lead to dry eyes and discomfort; using night mode and ambient lighting is advised to mitigate these effects [4] Group 5: Eye Fatigue Management - To alleviate eye fatigue, it is essential to control screen time, with recommendations to take breaks every 30 to 40 minutes and follow the "20-20-20" rule [4] - Maintaining appropriate lighting and screen settings can also help reduce eye strain [4] Group 6: Myopia Management - Effective myopia management focuses on early detection, intervention, and regular monitoring under professional guidance [6] - Parents are advised to avoid non-medical claims of vision recovery and seek professional evaluation if they notice a decline in their child's vision [6]
我国干眼症患者呈年轻化趋势!哪些因素可能诱发?医生提醒→
Sou Hu Cai Jing· 2025-06-06 08:26
Core Viewpoint - The 30th National Eye Care Day emphasizes the importance of eye health awareness, particularly focusing on the increasing prevalence of dry eye syndrome among younger individuals due to lifestyle and environmental factors [1][2]. Group 1: Dry Eye Syndrome Overview - Dry eye syndrome is defined as an imbalance in the eye's tear film stability or microenvironment, leading to discomfort or visual fluctuations [1]. - Common symptoms include dryness, foreign body sensation, redness, light sensitivity, and even tearing in some cases [1]. Group 2: Causes and Risk Factors - Various factors contribute to the onset of dry eye syndrome, including unhealthy work habits, environmental conditions (e.g., wind, sand, haze), and age [2]. - The incidence of dry eye syndrome increases with age, and hormonal changes during menopause can also elevate risk, particularly in women [2]. Group 3: Treatment Approaches - Treatment for mild dry eye syndrome primarily involves the use of artificial tears to lubricate the eye surface and alleviate discomfort [2]. - For moderate cases, anti-inflammatory medications and physical treatments such as eyelid hygiene, warm compresses, and massage may be employed [2]. - Severe cases may require surgical interventions, including punctal occlusion or tear duct occlusion procedures [2].
干眼症市场为何火热?市场、产品、玩家大盘点
思宇MedTech· 2025-02-10 14:34
2023年10月, 药渡数据库 刊文称,据预计到2030年中国干眼症药物市场规模将大幅增长至 67亿美元 。 干眼症市场具有巨大的潜力和不断增长的患者需求,特别是在中国,随着人口老龄化和现代生活方式的影响,干眼症的患病率和市场规模预计将持续增长。 同时, 患者对于更有效和便捷治疗方式的需求也在不断提升。 干眼常见治疗方式 01 干眼症发病原理 泪膜的结构和功能对于维持眼睛健康至关重要,由 粘 蛋白层、水液层和脂质层构成。 粘蛋白层提供泪膜与眼球表面的粘附力 ,使泪膜能够稳定地附着在眼表,防止泪膜过早破裂。 水液层保持角膜和结膜的湿润 ,提供必要的营养和氧气,帮助清除 眼表的异物和细胞代谢产物。 脂质层减少泪液与空气的接触 ,降低泪液的蒸发速率,维持泪膜的稳定性。 干眼(Dry Eye Disease, DED)是多因素引起的慢性疾病,由泪液的质、量及动力学异常导致的泪膜不稳定或眼表微环境失衡,可伴有眼表炎性反应、组织损伤及 神经异常,造成眼部多种不适症状和/或视功能障碍。 在2007年第1次国际干眼工作小组报告(DEWS 1)中, "干眼症"就已被正式确定为"干眼",并定义为一种疾病。 根据《国人干眼多中心大 ...