A‑Scan & B‑Scan Ocular Ultrasound in North Jersey | Marano Eye Care

Ophthalmic specialists rely on two primary types of diagnostic ultrasound—A‑scan and B‑scan—to evaluate internal eye structures when direct visualization is limited. Because the eye is a fluid‑filled sphere, ultrasound provides a safe, highly effective way to assess anatomy, detect abnormalities, and support accurate diagnosis and treatment planning.

Ultrasonic waves reflect off internal tissues, creating precise measurements and detailed images that help ophthalmologists diagnose a wide range of retinal, choroidal, and orbital conditions.

A‑Scan Ultrasound in North Jersey

An A‑scan (amplitude scan) measures the length of the eye from the cornea to the retina. A single, one‑dimensional sound beam is converted into spikes that correspond to tissue interfaces. These measurements are essential for:

• Detecting retinal detachment

• Evaluating choroidal melanoma and intraocular tumors

• Calculating intraocular lens (IOL) power for cataract surgery

• Assessing abnormal axial length

A‑scan testing provides fast, highly accurate biometric data that supports precise diagnosis and surgical planning.

B‑Scan Ultrasound in North Jersey

A B‑scan (brightness scan) produces a two‑dimensional cross‑section of the eye and orbit. This test is especially valuable when the view into the eye is blocked by:

• Dense cataracts

• Vitreous hemorrhage

• Corneal opacities

• Post‑trauma swelling

B‑scan imaging is commonly used in emergency settings and post‑operative evaluations. It helps diagnose:

• Retinal or choroidal detachment

• Vitreous hemorrhage

• Orbital masses or foreign bodies

• Calcifications and intraocular tumors

Because it provides a detailed look at the posterior segment, B‑scan ultrasonography is a critical tool when traditional examination is not possible.

What to Expect During A‑Scan and B‑Scan Testing

Both tests are quick, comfortable, and require minimal preparation.

A‑Scan

• Numbing eye drops are applied.

• You’ll sit with your chin on a rest, looking straight ahead.

• A small ultrasound probe gently touches the front surface of the eye.

B‑Scan

• Your eyelids remain closed.

• A gel is applied to the lid to allow smooth probe movement.

• The doctor may ask you to move your eyes in different directions to capture full views.

Results are available immediately, allowing your ophthalmologist to make timely and informed decisions about your care.

A‑Scan & B‑Scan Services Near You

Protecting your vision starts with accurate diagnosis. At Marano Eye Care, all A‑scan and B‑scan ultrasounds are performed in‑office by experienced ophthalmic professionals who prioritize your comfort and care.

If you’re experiencing vision changes, pain, or discomfort, early evaluation is the best path to relief. Contact our Livingston, Newark, or Denville offices to schedule a comprehensive eye exam today.