Understanding Bifocals in Myopia Management
Bifocal lenses are eyeglasses with two distinct optical powers: the upper part corrects distance vision, while the lower segment aids near vision. Traditionally used to address presbyopia, bifocals have been repurposed in myopia management to mitigate the progression of nearsightedness in children.
At Child and Family Vision Center we believe that education plays a huge role in eyecare and we’re here to unpack the seemingly complex topic of myopia as well as the role of bifocal lenses as they slow the progression of myopia.
How Do Bifocals Help?
The primary theory behind using bifocals for myopia control involves reducing accommodative lag—the delay in the eye’s focusing mechanism during near tasks. Prolonged near work can lead to increased eye strain and accommodative lag, contributing to myopia progression. Bifocals assist by lessening the focusing demand during close-up activities, thereby reducing eye strain and potentially slowing myopia advancement.
Evidence Supporting Bifocal Use
Research indicates that bifocal spectacles can slow myopia progression in children. A three-year randomized clinical trial demonstrated that bifocal lenses reduced myopia progression by approximately 33% compared to single-vision lenses.
Advantages of Bifocals for Myopia Management
- Non-Invasive Approach: Bifocals offer a non-surgical method to manage myopia progression.
- Ease of Adaptation: Many children adapt well to bifocal lenses, experiencing improved comfort during near tasks.
- Cost-Effective Solution: Compared to other myopia control methods, bifocals are generally more affordable and accessible.
Considerations and Next Steps
While bifocals present a promising option for myopia management, their effectiveness can vary based on individual factors such as the child’s age, degree of myopia, and visual habits. It’s essential to consult with an eye care professional to determine the most suitable approach for your child.
At Child and Family Vision Center in Ankeny, we specialize in pediatric eye care and myopia management. Our comprehensive evaluations and personalized treatment plans aim to preserve your child’s vision and overall eye health. If you’re concerned about your child’s myopia progression, contact us today to schedule a consultation.
