Age-Related Macular Degeneration (AMD)
faces. As we age, one common condition that can threaten vision is Age-Related Macular Degeneration (AMD). It's a progressive eye condition that often starts subtly but can significantly impact your vision over time.
At Retina Consultants of Southern Colorado, we're here to help you navigate a new diagnosis or answer questions if you are experiencing any vision loss. Our team of fellowship-trained retina specialists offers the knowledge, tools, and treatments you need to understand and manage AMD. Whether you're looking for answers, support, or advanced care, you've come to the right place.
What Is AMD?
Age-Related Macular Degeneration (AMD) is a chronic condition involving the deterioration of the macula, the central part of the retina, and the choroid, the layer of blood vessels and connective tissue between the white of the eye and retina. It is the leading cause of the loss of visual acuity or sharpness of vision in adults over 50 years of age in developed countries. While the exact cause of AMD remains unknown, it occurs as the eye ages and we get older.
There are two main types of AMD:
- Dry AMD or Non-neovascular: The most common form, characterized by the presence of drusen or pale yellow lesions beneath the retina. As drusen accumulates and areas of the retina atrophy or waste, patients may develop Geographic Atrophy (GA), an advanced stage of dry AMD associated with permanent central vision loss.
- Wet AMD or Neovascular: A more severe form where abnormal blood vessels (choroidal neovascularization) grow beneath the retina. These vessels can leak fluid or bleed, causing rapid damage and scarring that may lead to permanent central vision loss.
Common Symptoms of AMD
In its early stages, AMD often presents no symptoms. As it progresses, individuals may notice:
- Distortion or warping of straight lines (metamorphopsia)
- Diminished brightness or intensity of colors
- Blurred or dark areas in the center of vision
- Sudden or gradual loss of central vision
If you experience any of these signs, timely evaluation by a retina specialist is crucial.
Risk Factors for AMD
Several factors increase the risk of developing AMD, including:
- Age (the strongest risk factor)
- Family history of AMD
- Caucasian ethnicity
- Female gender
- Light-colored eyes
- Far-sightedness (hyperopia)
- Smoking
- High blood pressure and high cholesterol
- Cardiovascular disease
- Low dietary intake of fish, lutein, and antioxidants
- Higher body mass index (BMI)
- Prolonged sunlight exposure without protection
Understanding your risk profile can guide prevention and early intervention strategies.
How Is AMD Diagnosed?
Early detection plays a critical role in preserving vision and slowing the progression of AMD. Your eye doctor can diagnose AMD through a comprehensive clinical examination using a slit lamp along with advanced imaging techniques, including:
- Optical Coherence Tomography (OCT): A non-invasive technique that takes high-resolution cross-sectional images of the retina to detect fluid, swelling, or structural changes
- OCT Angiography (OCTA): Provides detailed, three-dimensional visualization of retinal blood vessels without the use of dyes
- Fluorescein Angiography (FA): Uses injected dye to highlight abnormal blood vessel growth or leakage
- Indocyanine Green Angiography (ICGA): Provides specialized imaging for deeper retinal structures and blood vessels
These imaging techniques allow your eye care specialist to detect AMD changes early, distinguish between dry and wet forms, and recommend the most appropriate treatment plan for your specific condition.
Treatment Options
Treatment for wet AMD has been revolutionized by anti-VEGF (vascular endothelial growth factor) medications, which block abnormal blood vessel growth and leakage. Commonly used anti-VEGF drugs include:
- Avastin® (bevacizumab)
- Lucentis® (ranibizumab)
- Eylea® (aflibercept)
- Beovu® (brolucizumab)
These medications are administered via intravitreal injections directly into the eye after numbing drops are applied, often starting with monthly doses and then adjusted using one of the following treatment regimens:
- PRN (as needed): After initial treatment, injections are given only if new leakage or bleeding is detected.
- Treat-and-Extend: Injection intervals are gradually extended based on disease stability.
- Fixed Monthly Injections: For ongoing, stable control.
Although not a cure, anti-VEGF treatment has helped many patients preserve and sometimes recover useful central vision.
Prognosis and the Importance of Regular Monitoring
While AMD can cause substantial visual impairment, it rarely leads to complete blindness. Vision loss typically progresses gradually over time, and peripheral vision is generally preserved, allowing individuals to maintain independence with appropriate adaptations and support.
For those experiencing significant vision changes, low vision aids like magnifying devices, specialized lighting, and assistive technology can make a meaningful difference in daily activities like reading, cooking, and recognizing faces.
Ongoing monitoring is essential for managing AMD, detecting progression early, and adjusting treatment as needed. Our team at Retina Consultants of Southern Colorado uses advanced imaging and personalized care strategies to help you protect your vision and maintain your quality of life.
Advanced Care for AMD in Southern Colorado
If you’ve been diagnosed with AMD or suspect you may have early symptoms, Retina Consultants of Southern Colorado is here to help. Our board-certified, fellowship-trained retina specialists are dedicated to providing leading-edge diagnostics, evidence-based treatment options, and compassionate support for every stage of AMD.
Don’t wait to take control of your eye health. Early intervention makes a difference. Contact Retina Consultants of Southern Colorado to schedule a comprehensive evaluation and begin your personalized AMD care plan.