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Does your eye colour influence risk of cataracts?

31/08/2017

Does your eye colour influence cataracts?

Cataracts can happen to anyone – nearly everyone will have some cataract formation by the age of 70. However, did you know that you could be at higher risk of cataracts simply because of the colour of your eyes?

How influential is your eye colour?

People with dark brown eyes have the greatest risk of developing cataracts. An Australian study found that the risk can be up to 2.5 times greater for certain types of cataracts.

Researchers suspect the reason is similar to wearing a black shirt in the middle of summer. The dark colour absorbs more light and heats up the lens of the eye, eventually causing it to become cloudy after many years.

If you have dark brown eyes, don’t panic – there are ways to help offset the increased risk. Even if your eyes aren’t dark brown, you should keep reading to discover the steps to take to reduce the risk of developing cataracts in the future.

Prevention

UV exposure and smoking are two major risk factors for cataracts. By wearing UV protected sunglasses and a hat with a visor, plus quitting smoking, you can lessen the likelihood of developing cataracts.

Cataract symptoms

If your eyesight is deteriorating, becoming more sensitive to light, intolerant to glare or you’re experiencing the dulling of colours, you should visit your optometrist or GP.

Most people who need treatment are over 60 years old, although cataracts can occur at a younger age as well.

Treatment

Cataract surgery is a straightforward procedure that provides good results for the vast majority of patients, assuming that your eyes are otherwise healthy.

If you are having cataract surgery, it will most likely be performed at a day surgery. The anaesthetist will ensure that you are relaxed before the surgery. The surgeon then removes your cloudy lens and replaces it with a clear, artificial lens that will remain there permanently. Once in place, you won’t be able to feel the lens and it’s likely to stay there safely for the rest of your life.

Read our cataract surgery FAQs

References
  1. The Royal Australian and New Zealand College of Ophthalmologists. Cataract Surgery Online Patient Advisory. Edition 2. Australia: Mi-tec Medical Publishing, 21 February 2019. Available at https://ranzco.edu/policies_and_guideli/cataract/ [Accessed 6 January 2021].
  2. Cumming RG, Mitchell P, Lim R. Iris color and cataract: the Blue Mountains Eye Study. Am J Ophthalmol 2000;130(2):237–8.
  3. American Academy of Ophthalmology. What Are Cataracts? USA, 11 December 2020. Available at https://www.aao.org/eye-health/diseases/what-are-cataracts [Accessed 6 January 2021].
  4. Davis G. The Evolution of Cataract Surgery. Mo Med 2016;113(1):58–62.
  5. American Academy of Ophthalmology. EyeWiki: Cataract. USA, 30 August 2020. Available at https://eyewiki.aao.org/Cataract [Accessed 6 Jan 2021].

 

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The information on this page is general in nature. All medical and surgical procedures have potential benefits and risks. Consult your ophthalmologist for specific medical advice.

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