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What is age-related macular degeneration?

What is age-related macular degeneration?

Age-related macular degeneration is a retinal condition that affects the macula, leading to changes in central vision and visual clarity over time.
View VideoThis video gives patients a brief introduction into AMD and explains why early diagnosis through routine eye exams is important. You can share this video on social media to reach your patients outside of the office and add it in your waiting room to reinforce the importance of eye exams.
Age-related macular degeneration (AMD) is a condition that affects the macula, the central part of the retina responsible for detailed vision. It leads to changes in central vision, which may develop gradually or, in some cases, progress more rapidly.

Understanding the macula

The macula is a specialised area at the centre of the retina that allows for sharp, detailed vision. It is responsible for tasks such as reading, recognising faces and focusing on fine detail.

When the macula is functioning normally, visual information is processed with clarity and precision. When it is affected, central vision becomes less clear.

View VideoDescribes the location and role of the macula and fovea.

What happens in AMD

In AMD, structural changes occur within the layers of the macula. These changes may include the accumulation of deposits beneath the retina, alterations in retinal cells or disruption of the normal architecture of the macula.

Over time, these changes interfere with how light is processed and transmitted to the brain, leading to reduced clarity and distortion of central vision.

How AMD affects vision

AMD primarily affects central vision. Individuals may notice blurring, distortion or difficulty focusing on detailed tasks.

Peripheral vision is usually preserved, meaning that side vision remains largely intact even as central vision changes.

How the condition develops

AMD develops as a result of age-related changes within the retina. These changes affect the structure and function of the macula over time.

The rate of progression can vary, with some individuals experiencing slow changes and others noticing more rapid visual alterations.

Early and later changes

In its early stages, AMD may not cause noticeable symptoms. Subtle changes in the retina can occur before vision is affected.

As the condition progresses, central vision may become increasingly impaired, affecting tasks that require visual precision.

Impact on daily life

Because AMD affects central vision, it can influence activities such as reading, driving and recognising faces.

The degree of impact depends on the severity of the condition and how it progresses over time.

Why understanding AMD matters

Understanding how AMD affects the eye helps in recognising changes early and seeking appropriate assessment.

Early detection and monitoring are important in maintaining visual function and supporting long-term eye health.

When to seek assessment

If you notice changes in central vision, distortion, blurring or difficulty with detailed tasks, an eye assessment is recommended. Early evaluation allows for identification of changes and appropriate monitoring. If you are concerned about changes in your vision or would like a detailed retinal assessment, schedule a consultation with Dr Cronjé Ophthalmologist & Eye Surgeon | FC Ophth (SA) | MBChB (Pret) | Dip Ophth (SA) for personalised care and guidance.