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Dry eye 3 – Aqueous deficient dry eye

In the last of three case studies looking at dry eye presentations from different points on the dry eye sub-type continuum, Sarah Farrant considers a case of dry eye disease primarily caused by insufficient tear production

The historical classification of dry eye disease (DED) has typically considered two distinct disease entities:

• Aqueous deficient
• Evaporative

The latest thinking from the TFOS DEWS II report suggests moving away from this separation and more towards a blurring of the lines between the two classically considered sub-types. In other words, we should consider the disease as more of a continuum of these two sub-types rather than separate entities. In this final case study, the patient was found to lie towards the aqueous deficient end of the continuum.

Case 3

Background: AD, female, age 82, retired. She was a driver, keen reader and tablet user.

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