Cataract is the world’s leading cause of blindness, accounting for approximately 42 percent of all cases of blindness in all nations. In the United States, more than 25 million Americans are estimated to have cataract, according to the report “Future of Vision: Forecasting the Prevalence and Costs of Vision Problems.” As the population in America continues to age, the number of cataract cases are projected to increase by 50 percent to 38.5 million by 2032.
A cataract is a clouding of the eye’s lens, which blocks or changes the passage of light into the eye. The lens of the eye is located behind the pupil and the colored iris, and is normally transparent. Vision may become blurry or dim because the cataract stops light from properly passing through to the retina. Generally, a cataract does not cause pain, redness or tears.
Risk factors for cataracts include:
- Older age
- Intense heat or long-term exposure to UV rays from the sun
- Certain diseases, such as diabetes
- Inflammation in the eye
- Hereditary influences
- Events before birth, such as German measles in the mother
- Long-term steroid use
- Eye injuries
- Eye diseases
- Smoking
Most cataract cases in the United States are in older adults, but children may also develop pediatric cataracts. According to the American Academy of Ophthalmology, cataracts in a child can be congenital (present at birth) or acquired (develop after birth). Without treatment, cataracts in young children can cause poor development of the visual pathway between the brain and the eye, leading to vision impairment. Therefore, diagnosing and treating cataracts early in children is critical to promoting normal vision development.
OUR DIET IS VERY IMPORTANT
A healthy diet may help reduce risk of and/or delay formation and progression of cataracts. Research suggests that a diet high in vitamin C-rich foods — citrus (oranges, kiwi, lemon, grapefruit), bell peppers, strawberries, tomatoes, cruciferous vegetables (broccoli, Brussels sprouts, cabbage, cauliflower) — is helpful in slowing the progression of cataracts. More importantly, adopting good nutrition is a cornerstone of optimizing health early in life and can greatly reduce the risk of developing age-related diseases including cataracts.
BE SURE TO HAVE AN ANNUAL EYE EXAM
By age 40, all adults should visit an eye specialist for a comprehensive eye exam to screen for early-stage cataracts and other eye diseases that are leading causes of low vision and even blindness. By age 65, a routine eye exam is recommended every year, in most cases to diagnose cataracts that are progressively clouding the lens. Cataract can be more common in people with diabetes, after eye trauma or in those taking corticosteroid medications. A comprehensive eye exam allows eye specialists to detect and monitor cataract progression as well as diagnosing other problems such as glaucoma. Patients should discuss with their eye specialist their vision problems and seek guidance about the timing of cataract surgery when worsening vision has compromised their quality of life and normal functioning.
LIVE A HEALTHY LIFESTYLE
Multiple factors are at play that increase our risk for developing a degenerative eye disease or vision compromising conditions as we age. If an individual lives long enough, then cataract formation is unavoidable. Living a healthy lifestyle, however, greatly improves an adult’s odds of avoiding early onset, faster progression, or possibly even avoiding the need for cataract surgery in the future.
For more information about cataract:
https://discoveryeye.org/eye-conditions/cataracts/