Presbyopia is a natural aging phenomenon that occurs as the elasticity of the eye's lens decreases with age, making it difficult to see close distances clearly.
It typically begins around the age of 40 and can occur in anyone.
Normal focus position
Presbyopia Focus Position
The primary symptoms of presbyopia
The text on my phone is hard to see.
My eyes feel gritty and heavy.
I'm wearing reading glassesbecause the text is hard to see.
Vision deterioratesin dark places.
Reading gives me a headache.
What is a cataract?
Cataracts are a condition where the lens inside the eye, which functions like a camera lens, becomes cloudy, causing blurred vision.
A normal lens is transparent, accurately transmitting light to the retina. However, when cataracts develop, the lens becomes cloudy, causing vision to appear hazy like looking through fog and making light appear blurred.
Normal lens
Cataract lens
Common symptoms of cataracts
Objects appear to overlap.
Even with the magnifying glass, it's not clear.
Distinguishing colorsbecomes difficult.
The light appears to be spreading.
Glareoccurs.
Types of Cataracts
Age-related cataract
Congenital cataract
Secondary cataract
Traumatic cataract
Diabetic cataract
Drug-induced cataract
Causes of Cataracts
Age
백내장의 가장 흔한 원인입니다.
나이가 들면서 수정체가 점차적으로 단단해지고 혼탁해지면서 백내장이 발생합니다.
Genetics
가족 중에 백내장이 있는 경우,
유전적으로 백내장이 발생할 확률이 높아질 수 있습니다.
Diabetes
당뇨병이 있는 사람은 백내장이 발생할 위험이 높습니다.
고혈당이 렌즈의 단백질에 영향을 미쳐 백내장이 생길 수 있습니다.
Trauma
눈에 상처나 충격을 받은 후
렌즈에 손상이 가면
백내장이 발생할 수 있습니다.
medication
Steroid medications are a common type of drug that can cause cataracts.