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Cohenmehr Optometry — Vision · Dry Eye · Keratoconus Book appointment
Cohenmehr OptometryVision · Dry Eye · Keratoconus Center
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Medically reviewed by Dr. Bijan Cohenmehr, OD Last reviewed

Advanced Diagnostics & Dry Eye Testing

Every plan here starts with a measurement.

Good treatment is downstream of good measurement. The office is equipped so that decisions — is this glaucoma progressing, are these glands dying, is this cornea steepening — are made by looking directly at the structure in question.

Diagnostic imaging in use
Retina & nerve
OCT, photography, visual fields
Cornea
Topography, tomography, pachymetry
Eyelids
High-resolution meibography
Sclera
the Eaglet Eye Surface Profiler

What each tool answers

  • OCT: cross-sections of the retina and optic nerve — glaucoma, macular edema, AMD
  • Visual field testing: where peripheral vision is quietly thinning
  • Retinal photography: a baseline your future visits are compared against
  • Tonometry and pachymetry: pressure, and the corneal thickness that calibrates it
  • Corneal topography and tomography: the shape maps that stage keratoconus
  • Meibography: the structure of your eyelid oil glands
  • Scleral profilometry: the contour map a free-form scleral lens is designed from

Why baselines matter

Most eye disease is a story told in change. The first round of imaging is the chapter everything else gets compared to — which is why our optometrists in Los Angeles image before they treat.

Where it leads

Measurement drives every program here.

Common questions

Advanced diagnostics, answered.

Anything else, call the office at 310-828-2010.

  • No — they are light-based imaging and measurement. Dilation drops sting briefly and blur near vision for a few hours.

  • Glaucoma, diabetic retinopathy and early AMD are famously silent. Imaging catches them while treatment still protects vision.

  • Medically indicated testing is typically billed to medical insurance; we verify benefits when we book you.

  • A visual field test maps how much you can see to the sides, and in the center, while you look straight ahead. You keep your eye still on a central target while lights appear in different spots, and the test finds the dimmest light you can detect at each location, so missing some faint lights is normal. The map shows where side vision has been lost, which is how it helps detect glaucoma damage and track it over time. Glaucoma usually takes side vision first, and many people are unaware of it until the loss is significant, so the test can catch loss you haven't noticed.

  • Usually a few minutes per eye. In a five-center study of 126 people with glaucoma or suspected glaucoma, three versions of an automated threshold test averaged about 3, 4 and 6 minutes per eye, with only small differences in results between the quickest and the longest. Your first test becomes the baseline that later tests are compared with, since most eye disease shows itself as change over time.

Also consider

Next step

See what we can see.

Book a comprehensive exam with imaging, and keep a baseline worth comparing against.

Book Today Or call 310-828-2010