Diagnostic · Visual Field Testing

ZEISS Humphrey Field Analyzer 3

The visual-field test that detects glaucoma damage — often years before you would notice it yourself.

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ZEISS Humphrey Field Analyzer 3 at Dayal Eye Centre

ZEISS HFA 3 · Perimetry

More Than a Glaucoma Test

Visual-field loss has many causes. The HFA maps exactly where your sight is reduced, helping our doctors separate glaucoma from optic-nerve, retinal and even brain-related causes.

GlaucomaThe primary use — early detection

Optic Nerve DisordersOptic neuropathy & neuritis

Retinal DiseasesField loss from retinal damage

Neurological ConditionsBrain-related vision loss

Macular DiseasesCentral-field defects

Head Injury Follow-UpConcussion-related vision issues

How It Works

Six Capabilities That Make the Difference

Manufacturer specifications, explained in plain language — what each one means for your test.

SITA Faster Testing

The latest thresholding algorithm cuts test time substantially — less fatigue, more reliable answers.

24-2C Test Pattern

Ten extra points in your central vision catch early defects that standard patterns can miss.

Visual Field Index

One intuitive percentage grades severity and makes progression easy to understand at follow-up.

Guided Progression Analysis

Statistics, not guesswork — the HFA flags genuine worsening so treatment can be adjusted in time.

RelEYE Verification

Reviews your eye position at any test point, confirming the data reflects your true field.

Liquid Trial Lens

Your refractive correction loads automatically from the previous exam — faster setup, fewer errors.

Specifications per the manufacturer — ZEISS.

In Our Operating Theatre

The HFA at Dayal Eye Centre

Why It Matters for You

Glaucoma Steals Sight Silently

Glaucoma has no early symptoms — by the time you notice, damage is permanent. A visual-field test takes about ten minutes per eye and tells your doctor precisely whether your optic nerve is under threat and whether treatment is working. If glaucoma runs in your family, regular fields are essential.

Test results are always interpreted by our doctors alongside eye-pressure and OCT findings.

Where You’ll Meet This Technology

Treatments That Use the ZEISS Humphrey Field Analyzer 3

Glaucoma Treatment

Medical and surgical management to protect your optic nerve — guided by your fields.

Know More Retina Treatment

Retinal causes of field loss, diagnosed and managed by our specialists.

Know More Detailed Eye Checkup

A comprehensive examination — visual fields included where indicated.

Know More

Our surgeons plan every procedure personally — meet the team behind the technology.

Meet Our Doctors

Does Glaucoma Run in Your Family?

Age over 40, family history and high eye pressure all raise risk. A baseline visual field with our doctors takes one visit — and could protect decades of sight.

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