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ADD

24 July 2026 3 min read Dr Dirk Booysen

The ADD value on your prescription refers to the additional lens power needed for reading and other close-up tasks. It is most commonly used for presbyopia, the natural age-related change that makes near focusing more difficult, which usually becomes noticeable from around the age of 40. The ADD is always a positive value that supports your near vision.

How the ADD works

The ADD is added to your distance prescription to give extra help for close focusing. It is used in several types of lens, depending on your needs.

  • Provides extra magnification for near tasks
  • Usually the same for both eyes
  • Used in reading, multifocal and progressive lenses

How we can help

During your eye examination we measure the ADD you need for comfortable close-up vision and discuss the lens options that would suit your lifestyle, whether that is dedicated reading glasses or lenses that let you see clearly at several distances. We will guide you towards the most comfortable and practical choice for you.

If reading or other close work has become more of a strain, we warmly invite you to book a comprehensive eye examination with our practice.

Let's Take Care of Your Vision

Whether you're booking a routine eye examination or need advice about your eye health, we're here to help. Simply complete the form below, and our team will contact you to confirm your appointment.