拍摄者 bruce mars不飞溅

Presbyopia is the gradual loss of your eyes’ ability to focus up close. This tends to start around your early 40s and progresses until around the age of 65. You may notice starting to hold reading material further away to keep it clear, blurry vision at previously normal reading distance, eyestrain or headaches after extended periods of reading.

Managing presbyopia

Depending on your health, lifestyle and preferences, your eye care specialist may suggest any of the following methods to correct presbyopia:

  • Eyeglasses in the form of readers, bifocals, progressives, etc.
  • Contact lenses, typically multifocal or monovision
  • Surgeries
  • Eye drops such as Vuity

Can I prevent presbyopia?

You can’t prevent presbyopia since it’s a part of the natural aging process. You can, however, take steps to protect your eye health. This includes:

  • Wearing sunglasses to shield your eyes from harmful ultraviolet (UV) rays.
  • Eat foods rich in nutrients that promote eye health, including vitamin A, vitamin C, vitamin E and lutein, and Omega-3s
  • Improve lighting in work areas
  • Increase font and change contrast in smart phones or computer devices etc.

图片来源: 凯西·霍纳不飞溅

视网膜色素变性(RP)是一种遗传性眼病,会影响视网膜——位于眼球后部,负责捕捉光线并将视觉信号传递至大脑。这种疾病由基因突变引起,随着视网膜内感光细胞的逐渐退化,会导致视力逐渐丧失。虽然有些人的视力会在数十年内缓慢下降,但另一些人的视力恶化速度可能更快。.  

症状

视网膜色素变性最显著的症状之一是夜盲症,患者在光线昏暗或黑暗的环境下视力下降。随着视网膜色素变性病情加重,通常会导致视野狭窄(管状视野),甚至影响色觉。.  

治疗

目前尚无治愈视网膜色素变性的方法,但研究人员正在积极探索各种可能性。基因疗法旨在将正常基因导入视网膜,以替代突变基因。另一研究方向是视网膜植入,该疗法试图通过电子设备刺激剩余的正常细胞来恢复视力。.  

患有视网膜色素变性(RP)的患者应与眼科专业人员密切合作,共同管理病情。定期眼科检查有助于追踪病情进展,并确定保护视力的最佳策略。此外,患者还可以了解有助于改善日常生活的低视力辅助工具和技术。.