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Retinal images may forecast risk of heart or lung disease

  • 2 Min To Read
  • 5 months ago

A recent study suggests that retinal scans could potentially become a routine component of health screenings in the future. Researchers have found a correlation between thin retinas and an increased risk of ocular, neurological, and cardiovascular diseases. Interestingly, the study also found that a thinner retina is associated with a higher risk of developing lung conditions such as bronchitis or emphysema later in life.

The study, which analyzed data from 44,828 participants, used retinal images captured through a non-invasive procedure called optical coherence tomography. This technique is commonly used by ophthalmologists to assess the risk of eye conditions like macular degeneration and glaucoma. The procedure provides information about the thickness of the retina, which is typically 0.5 millimeters thick.

Nazlee Zebardast, one of the study authors from Harvard Medical School, hopes that optical coherence tomography can be expanded beyond its current use in eye clinics. She envisions the technology being used to provide information about an individual's overall health, potentially identifying risks for conditions like sleep apnea or diabetes.

However, researchers caution that the technology is still a long way from being clinically applied. The underlying mechanisms behind the associations between retinal thickness and systemic health are not yet fully understood. Additionally, the study's conclusions may have limited applicability due to the lack of genetic diversity in the sample population, with 94% of participants having white European ancestry.

Further prospective studies are needed to validate the findings and determine whether a thinner or thicker retina indeed corresponds to an elevated risk of developing conditions like heart disease or pneumonia. If future research confirms these hypotheses, retinal imaging could emerge as a valuable and non-invasive tool for routine health screenings.

In conclusion, while the study's findings are promising, more research is needed to fully understand the relationship between retinal thickness and overall health. The potential use of retinal scans as a routine health screening tool is an exciting possibility, but it is important to approach the findings with caution until further studies have been conducted.

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