Study. Cataracts associated with a high risk of death due to heart disease. What is and what role does oxidative stress play

Study. Cataracts associated with a high risk of death due to heart disease. What is and what role does oxidative stress play

Slow but progressive loss of vision can be a sign of a serious illness called

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cataract. It is estimated that 30% of people over the age of 65 develop cataracts. However, young people can also be affected.

According to a study published in British Journal of Ophthalmology, cataracts may be associated with an increased risk of death from heart disease. The study “identified significant associations between self-reported cataract surgery” and an increased risk of death from any cause, especially from heart disease, the authors said.

Cataracts associated with a high risk of death due to heart disease

According to specialists,

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this conclusion does not imply that the ophthalmic condition called cataract causes heart problems. They pointed out that the study was not designed to prove cause and effect.

“A variety of medical conditions such as (high blood pressure), diabetes or smoking have been associated with increased (risk of) cataracts, and these diseases are also associated with vascular mortality, which could explain the association,” said Dr. Matthew Gorski, an ophthalmologist at Northwell Health in Great Neck, New York, who was not involved in the study, according to

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Agerpres.

However, cataracts can be an important indicator of health.

“Patients should use the results of this study as a reminder of the importance of regular eye examination with an ophthalmologist, especially with age and if there are certain medical conditions,” Gorski said.

What is and what role does oxidative stress play

The study was conducted in Australia and was led by Dr. Mingguang He from the Center for Ophthalmic Research at the University of Melbourne. The team led by Mingguang

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He analyzed data from 1999 to 2008 from approximately 15,000 patients in the United States aged 40 and over.

More than 2,000 (9.6%) of them said they had a cataract operation. Over an average monitoring period of about 11 years, almost 4,000 (19%) of the participants died.

After taking into account socio-economic and medical factors, the researchers found that the risk of death from any cause was 13% higher and the risk of death from heart disease was 36% higher, at people who

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they underwent cataract surgery.

Oxidative stress – an imbalance in the natural oxidation processes at the cellular level – and depression may be common factors that could cause cataracts and also increase the risk of death from heart disease, the team said in a study presentation..

The authors of the research provided as an example previous studies, which showed that DNA damage caused by oxidative stress contributes to the formation of cataracts, while stimulating an unhealthy narrowing of the arteries.


People who have cataracts are also at increased risk of developing depression

According to the Australian team, people who have cataracts are also at increased risk of developing depression compared to those who do not have this eye condition, even after undergoing cataract surgery. People with depression have a higher risk of being diagnosed with heart disease.

According to an ophthalmologist at Lenox Hill Hospital in New York, Dr. Mark Fromer, who analyzed the findings of this study, “it is certainly not a surprise to expect cataract patients to have other underlying conditions, with most cataract patients being elderly. ”.

Fromer also noted that cataract surgery is currently performed on younger people compared to the last few decades. “This made patients live longer after surgery than was reported just a few decades ago,” Fromer said.

“Better vision after surgery also leads to an improved quality of life and can prevent accidents that can lead to death and injury due to poor vision,” the doctor added.

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Any decision about your health should only be made after consultation with your doctor.


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