Age-Related Macular Degeneration (AMD) in Orange County: Detection, Monitoring, and Treatment

Reviewed by Dr. Audrey Tai, board-certified, fellowship-trained ophthalmologist — Athena Eye Care, Mission Viejo, Orange County, CA

Quick answer: Age-Related Macular Degeneration (AMD) is a chronic retinal disease that affects the central vision and is a leading cause of vision loss in adults over 50. AMD is divided into two types — dry AMD (more common, slower-progressing) and wet AMD (less common but more aggressive). Routine dilated eye exams are essential for early detection, and home monitoring with an Amsler grid helps catch new changes between visits. Treatment depends on the stage and type of disease.

What Is Age-Related Macular Degeneration?

Age-related macular degeneration (AMD) is a chronic eye disease that affects the macula — the central part of the retina responsible for the sharp, detailed vision you use for reading, driving, recognizing faces, and seeing fine detail.

AMD is one of the leading causes of vision loss in people over the age of 50 in the United States.

A key feature of AMD: it typically affects only your central vision and preserves your peripheral (side) vision. This means even people with advanced AMD usually retain enough peripheral vision to navigate independently, even if reading and recognizing faces become difficult.

Because the disease can progress gradually and without pain, routine dilated eye exams after age 50 are essential to detect early signs of AMD before significant vision changes occur.

The Two Types of AMD

1. Dry AMD (Atrophic) Dry AMD is the more common form, accounting for the majority of AMD cases. It develops gradually over years as small yellow deposits called drusen accumulate beneath the retina, and as cells in the macula slowly thin and break down.

Key features of dry AMD:

• Slower progression than wet AMD
• Early stages often have no symptoms
• Mid-to-late stages can cause blurry central vision, missing or distorted letters when reading, and difficulty recognizing faces
• Advanced dry AMD (called geographic atrophy) can produce significant central vision loss

2. Wet AMD (Neovascular) Wet AMD is less common but more aggressive. It occurs when abnormal new blood vessels grow beneath the retina and leak fluid or blood — damaging the macula and causing rapid, often severe central vision loss if not treated quickly.

Key features of wet AMD:

• Faster progression than dry AMD
• Can cause sudden vision changes, distortion of straight lines, dark or empty central spots
• Requires prompt evaluation and treatment — typically with injections of anti-VEGF medication directly into the eye
• Early treatment can preserve significant vision in many patients

Patients with dry AMD can sometimes convert to wet AMD, which is why ongoing monitoring is so important.

The Amsler Grid: Your Most Important At-Home Monitoring Tool

For patients diagnosed with AMD — or those at elevated risk — using an Amsler grid at home is one of the most important things you can do to protect your vision.

How to Use the Amsler Grid:

1. Wear your reading glasses if you normally use them.
2. Hold the grid at normal reading distance (about 14 inches).
3. Cover one eye at a time.
4. Stare at the central dot with the uncovered eye.
5. Note any changes — wavy, broken, distorted, blurred, or missing lines.
6. Repeat with the other eye.

If you notice any new changes — such as lines that appear wavy, blurred, or missing, or a new dark or empty spot near the center — contact Dr. Tai right away. Sudden changes can indicate the conversion from dry AMD to wet AMD, which is treatable but requires prompt intervention.

We recommend checking your Amsler grid at least once a week, and more often if your AMD is at a stage where conversion to wet AMD is a concern.

Treatment Options for AMD

Treatment depends on the type and stage of your AMD, your overall eye health, and your individual risk factors. Dr. Tai will discuss the latest, evidence-based recommendations during your visit.

For Dry AMD:

• AREDS2 eye vitamins — Specific vitamin and mineral supplements (Vitamin C, Vitamin E, Zinc, Copper, Lutein, and Zeaxanthin) shown by the AREDS2 clinical trials to slow progression in patients with intermediate dry AMD. Not everyone with AMD benefits from these — Dr. Tai will discuss whether they're appropriate for your specific stage.
• Lifestyle modifications — Quit smoking, eat a Mediterranean-style diet rich in leafy greens and fish, maintain healthy blood pressure and cardiovascular health, exercise regularly, and protect your eyes from UV light.
• Routine monitoring with comprehensive eye exams and home Amsler grid use.

For Wet AMD:

• Anti-VEGF intravitreal injections — The standard of care for wet AMD. These medications stop the growth of leaky abnormal blood vessels and can preserve or even improve vision when started early.
• Coordination with retinal specialists — Dr. Tai works closely with retinal subspecialists to ensure patients with wet AMD receive timely, expert care.

Emerging Treatments:

The AMD field is advancing rapidly. New therapies for geographic atrophy (advanced dry AMD) and longer-acting wet AMD medications are now available, and ongoing research continues to expand the options. Dr. Tai stays current on these developments and will discuss whether newer treatments are appropriate for your case.

Risk Factors for AMD

You may be at higher risk for AMD if you:

• Are over 50 years old
• Have a family history of AMD
• Smoke (the strongest modifiable risk factor)
• Have high blood pressure or cardiovascular disease
• Are Caucasian (statistically higher prevalence)
• Have light-colored eyes
• Have a history of prolonged unprotected UV exposure
• Are female
• Are obese or have a poor diet low in green leafy vegetables and omega-3 fats

Many of these risk factors are modifiable — meaning lifestyle changes can meaningfully reduce your risk and slow progression.

Frequently Asked Questions About Macular Degeneration

Can AMD be cured?

No — but its progression can often be slowed (dry AMD) or controlled (wet AMD), especially when caught early. The treatments available today preserve vision in many patients who would have lost it decades ago.

Will I go blind from AMD?

AMD typically does not cause complete blindness. It primarily affects central vision while preserving peripheral vision, so most patients retain enough vision to maintain independence — particularly with prompt treatment and low-vision aids when needed.

How often should I have my eyes checked if I have AMD?

Frequency depends on your stage. Patients with early or intermediate dry AMD are typically monitored every 6–12 months; patients with wet AMD may need to be seen monthly. Dr. Tai will recommend the right schedule for you.

Should I take eye vitamins?

AREDS2 vitamins are recommended for specific stages of AMD — typically intermediate dry AMD or advanced AMD in one eye. They're not recommended for everyone, and not all eye vitamins on store shelves match the AREDS2 formula. Always consult your ophthalmologist before starting supplements.

Is AMD hereditary?

Family history is a significant risk factor. If a parent or sibling has AMD, your risk is higher and you should be screened earlier and more frequently.

Can I prevent AMD?

While you can't change your genetics or age, you can reduce your risk by not smoking, eating a nutrient-dense diet, exercising regularly, controlling blood pressure, protecting your eyes from UV light, and getting regular dilated eye exams.

What's the difference between AMD and cataracts?

Cataracts affect the lens of the eye and are typically curable with surgery. AMD affects the retina and is a chronic disease that can be managed but not cured. Patients can have both conditions at the same time.

Don't Wait — Schedule an AMD Screening

If you are concerned about AMD, have noticed any changes in your central vision, or simply haven't had a dilated eye exam in over a year, schedule an appointment with Dr. Tai. Early detection is the single most important factor in protecting your long-term vision.

📞 Call: (949) 889-2020
🌐 Visit: www.athenaeyecare.com

Your journey to your best vision starts here — with Dr. Audrey Tai at Athena Eye Care, serving Mission Viejo, San Juan Capistrano, Laguna Niguel, Dana Point, San Clemente, and the wider Orange County, California community.

• Dry Macular Degeneration

• Wet Macular Degeneration

Amsler Grid

For people diagnosed with AMD, it is important to use an Amsler Grid at home to monitor any vision changes, and inform your eye doctor if you notice any changes.