Special Tests

Optical Coherence Tomography [ OCT]

Subtle changes in the retina and cornea can affect the vision tremendously which is why special tests such Optical Coherence Tomography [ OCT], and Corneal Topography are needed.

Optical coherence tomography (OCT) is useful in diagnosing many eye conditions, including:

  • Macular hole;
  • Macular pucker;
  • Macular edema;
  • Age-related macular degeneration;
  • Glaucoma;
  • Central serous retinopathy;
  • Diabetic retinopathy;
  • Preretinal membranes.
  • Glaucoma, OCT is often used to evaluate disorders of the optic nerve.

Retinal OCT

is a non-invasive imaging test that uses light waves to take cross-section pictures of your retina, the light-sensitive tissue lining the back of the eye.

 

 

 

 

 

 

Normal Retinal OCT reading

 

 


 

 

 

 

Abnormal Retinal OCT Reading

 

 

 

Visante – Anterior Segment [front of the eye] OCT:

The Visante OCT from Zeiss (Carl Zeiss, Germany) provides excellent high-resolution images of the anterior segment of the eye. It is a noncontact instrument that captures its images quickly.

Originally, Optical coherence tomography was only a  tool for analyzing the retina. Technological advances have made it a valuable tool for evaluating the front of the eye as well.

 

 

Anterior segment OCT I can be used in the:

  • Evaluation of the angle in glaucoma patients;
  • Evaluation of the cornea in refractive surgery patients—particularly LASIK patients;
  • Measuring the anterior chamber for certain phakic intraocular lenses; and as an
  • Evaluating the cornea for Ectasia
  • In pre-operative evaluations for cornea procedures, such as PTK and corneal transplants.