What are some facts in the medical field that people are reluctant to believe?

Let me discuss a few brutal truths related to ophthalmology:

1. Age-related cataracts are inevitable! Age-related cataracts are a disease associated with aging, and the incidence rate of cataracts in people over 80 years old is 100%! Many middle-aged people ask me in the clinic, "My mom has cataracts, will I get cataracts too? Is it hereditary?" The answer is that you will also get them, but it's not hereditary, and theThe premise is that you live to the age of getting cataracts!So stop believing the advertisements; no matter how much you soak in 603168 eye drops, you will still get cataracts. The current level of technology means that timely surgery is the only solution to cataracts. Generally, people aged 50-70 will have early-stage cataracts when discovered through a check-up, so don't panic; the specific timing varies from person to person. High myopia patients will experience cataracts earlier, as will diabetic patients; this is known as secondary cataracts.  
2. Confirmed glaucoma is incurable! The main purpose of using glaucoma eye drops and undergoing glaucoma surgery is to lower intraocular pressure and slow the progression of glaucomatous optic nerve atrophy. In summary, active treatment means going blind slowly, while no treatment means going blind quickly! I have seen a professor who was diagnosed with glaucoma 40 years ago, and after long-term eye pressure control with medication, currently has moderate visual field defects. After cataract correction, their vision can still reach 0.8! So don't give up; you still need to actively treat it!
3. True myopia in children cannot be restored! The facades of various health care massages and myopia training are basically just making money off you. Get glasses when you need them, pay attention to eye hygiene, have a balanced diet, actively supplement lutein, ensure 1-2 hours of outdoor activities daily (It is estimated that few can achieve this.), get regular eye exams, and change your glasses prescription  reasonably. Wearing orthokeratology lensescan slow the progression of myopia; this is the way to go!     
4. Dry eye syndrome is almost universally prevalent among white-collar office workers! You can understand dry eye syndrome as a suboptimal state of eye health (excluding severe systemic dry syndrome causing dry eyes), which is related to individual physical constitution, lifestyle, and work environment. Reasonable use of artificial tears, paying attention to eye hygiene, and reducing the frequency of phone and computer use can improve symptoms! Some people say that dry eye cannot be cured, and this statement can be considered both right and wrong. I believe that this condition is not a black-and-white diagnosis but a matter of varying degrees of symptom severity.  

Cruel realities do not mean we cannot pursue brightness! I just hope to use my own knowledge to correct some misconceptions in people's understanding, welcome corrections!