Causes and Risk Factors
Most cataracts are linked to natural changes in the lens of the eye over time. However, some people may develop cataracts earlier or have a higher risk because of other eye, health or lifestyle factors.
Cataracts
Cataracts
Understanding Cloudy or Blurred Vision Caused by Cataracts
Cataracts are a common age-related eye condition where the natural lens inside the eye becomes cloudy over time. This can make vision appear blurred, misty or less bright. At IOES, our specialist team can assess your vision, confirm whether cataracts are affecting your sight and guide you towards the right next step.
Overview
A cataract develops when the normally clear lens of the eye becomes cloudy. Cataracts often develop gradually, which means changes in vision can be subtle at first. Over time, they may begin to affect reading, driving, recognising faces, seeing in low light or enjoying everyday activities with confidence.
- Commonly develops as part of the natural ageing process
- Can affect one or both eyes
- May cause vision to become blurred, misty or less sharp
- Can make glare, bright lights or night driving more difficult
- Can usually be treated effectively when symptoms begin to affect daily life
Symptoms
Cataract symptoms usually develop slowly. Some people notice small changes in clarity or brightness, while others find that everyday tasks gradually become more difficult.
- Blurred, cloudy or misty vision
- Glare or halos around lights
- Difficulty seeing clearly at night or in low light
- Colours appearing faded or less bright
- Frequent changes in glasses prescription or reduced benefit from glasses
When to Seek Help
You should arrange an eye assessment if changes in vision are starting to affect your confidence, independence or ability to carry out everyday tasks. Cataracts are not usually an emergency, but specialist assessment can confirm the cause of symptoms and help you understand your options.
How It Is Diagnosed
At IOES, cataracts are diagnosed through a detailed eye assessment. Your clinician will examine the front and back of the eye, assess the clarity of the lens and check whether cataracts are the main reason for your symptoms.
Diagnosis and Next Steps
Once your assessment is complete, your clinician will explain whether cataracts are present, how much they are affecting your vision and whether monitoring, an updated glasses prescription or cataract surgery may be the most appropriate next step. The aim is to help you make a clear, informed decision based on your symptoms, lifestyle and overall eye health.
Treatment Overview
Early cataracts may not need immediate treatment, particularly if symptoms are mild. In some cases, stronger glasses, better lighting or regular monitoring may be enough for a time. When cataracts begin to interfere with daily life, Cataract Surgery may be recommended to remove the cloudy lens and replace it with a clear artificial lens.
Frequently Asked Questions
What are cataracts?
Cataracts happen when the natural lens inside the eye becomes cloudy. This can make vision appear blurred, misty or less bright and may gradually affect everyday activities.
Are cataracts a normal part of ageing?
Cataracts are very common as people get older. They can also develop earlier in some people because of health conditions, medication use, previous eye injury or other risk factors.
Do cataracts always need surgery?
Not always. If cataract symptoms are mild and not affecting daily life, monitoring or changes to glasses may be enough for a time. Surgery is usually considered when cataracts begin to interfere with the activities you want or need to do.
Can cataracts affect both eyes?
Yes. Cataracts can affect one or both eyes, although they may not develop at the same rate. Each eye is assessed separately so that the right plan can be recommended.
How will I know if I need cataract surgery?
A specialist assessment can confirm whether cataracts are affecting your vision and whether surgery is likely to help. The decision is based on your symptoms, visual needs, eye health and the impact on your daily life.
Request an Appointment
If cloudy or blurred vision is affecting your daily life, IOES can assess your eyes and help you understand whether cataracts may be the cause.
Request an Appointment
Considering Cataract Surgery?
Learn more about cataract surgery, including what the procedure involves, when it may be recommended and what to expect before, during and after treatment.
Learn More About Cataract Surgery
