Aqueous deficiency: what is it and when should you work it up for autoimmune disease

Understanding Aqueous Deficiency Dry Eye — What It Is, Why It Happens, and When to Worry

Dry eye is one of the most common complaints I hear in clinic, and not all dry eye is the same. One important subtype is aqueous deficiency dry eye (ADDE) — a condition where the lacrimal gland doesn’t produce enough of the watery layer of your tears. This can leave the eyes feeling gritty, irritated, tired, or even painful.

Many patients assume dryness means “not enough oil,” but in ADDE, the problem is actually not enough water.

Let’s break down what causes aqueous deficiency, when it needs further testing, and how we treat it.

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What Causes Aqueous Deficiency?

Aqueous deficiency has two major categories:

1. Non‑Sjögren’s Aqueous Deficiency (the most common)

This includes:

• Age‑related decline in tear production

• Medication effects (antihistamines, antidepressants, anticholinergics, isotretinoin, diuretics)

• Meibomian gland dysfunction (MGD) with secondary reflex tear issues

• Chronic blepharitis or rosacea

• Contact lens wear

• Post‑procedure dryness (IPL, LASIK, etc.)

• Hormonal changes

• Dehydration

• Lacrimal gland injury (radiation, trauma, burns)

2. Sjögren’s Syndrome–Related Aqueous Deficiency

This is an autoimmune condition where the body attacks the lacrimal and salivary glands.

It can occur alone (primary) or alongside other autoimmune diseases like rheumatoid arthritis or lupus (secondary).

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Do All Patients Need Blood Work?

No — absolutely not.

Most cases of mild dryness do not require blood testing.

Blood work is NOT needed when:

• Dryness is mild

• There’s a clear local cause (MGD, chalazion, screen time, medications)

• No dry mouth

• No joint pain, rashes, fatigue

• No recurrent styes

• No autoimmune symptoms

Blood work IS recommended when:

• Dryness is moderate to severe

• Symptoms are worsening

• There is dry mouth

• There are joint pains, rashes, or fatigue

• There is parotid swelling

• There are recurrent chalazia

• The patient is young with unexplained AD

• There is no obvious local cause

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What Blood Tests Are Used When Needed?

If a workup is appropriate, the typical panel includes:

Core Autoimmune Tests

• ANA

• SSA (Ro)

• SSB (La)

• ESR

• CRP

• RF

Thyroid Tests

• TSH

• Free T4

• TPO antibodies

Sjögren’s‑Specific Tests

• SJO panel (SP1, PSP, CA6)

These tests help identify autoimmune causes of dryness, especially Sjögren’s syndrome.

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How Do We Treat Aqueous Deficiency?

First‑line treatments:

• Warm compresses

• Artificial tears

• Lid hygiene

• Reducing screen time

• Reviewing oral medications and adding in anti-inflammatory eye drops like lifitegrast Xiidra or cyclosporines 

• Treating MGD

If dryness persists:

• Punctal plugs: Many patients feel worse after punctual plugs because the meibum oil coming out of the eyelid meibomian glands are inflamed. Once the meibum oil comes out like olive oil during the manual expression after an IPL (we can record the oil to see the quality and quantity which should look like gushes of olive oil type oil), most patients have improved symptoms with plugs particularly on the bottom two puncta of the right lower lid and left floor lid. However, sometimes all four punctal plugs need to be plugged to help symptoms. If punctual plugs, keep falling out we can intercanalicular plug or cauterize (ie close puncta with cautery or suture).

• Platelet Rich Plasma (PRP) or Autologous serum tears: These are usually preservative free and come from your own blood. They cannot be left in your pocketbook as they have to stay cold or frozen according to the directions you will receive from the provider.

• Immunomodulators (per specialist)

• Meibomian gland probing or IPL for the oil‑gland component

If autoimmune disease is suspected:

• Blood work: most insurance is required the PCP to order these blood test tests

• Possible rheumatology referral

The Bottom Line

Aqueous deficiency is common, treatable, and often mild. Most patients improve with simple measures. Blood work is reserved for cases where dryness is severe, persistent, or accompanied by systemic symptoms.

If you’re experiencing worsening dryness — especially after treatments like IPL — it’s often due to temporary inflammation being released from the glands. Warm compresses and lubricating drops usually help calm things down within a few days.

Your eyes are complex, but your care doesn’t have to be. The more you understand your symptoms, the better we can tailor your treatments.