What is corneal tomography?

Corneal tomography is a test that analyses the shape and some of the optical characteristics of the cornea, measuring curvature, shape and dimensions of all structures of the front of the eye (the visible part of the eye). Measuring the curvature and elevation of the front and back surfaces of the cornea, thickness of the cornea, anterior chamber depth (space between cornea and iris) and the iris-corneal angle (the structure that drains the liquids in the eye).

 

What is the purpose of corneal tomography?

It is used to study the abnormalities of the cornea and anterior segment. It allows to detect early forms of corneal ectasia and suspect of poorly developed keratoconus. The comparison of data collected in several successive samples allows us to study the evolution of the disease.

 

Preparation standards

Before a corneal tomography it is necessary to refrain from the use of contact lenses to prevent fingerprints and changes of corneal curvature that could skew the results. The tear film must be sufficient to ensure reliable measurements not influenced by irregularities of the surface. If it is necessary you can use artificial tears before getting a mammogram.

 

Who can undergo the exam?

The corneal tomography is suitable for patients of any age, even children, provided they are able to cooperate. The exam is indicated for all patients suffering from corneal diseases and before certain operations.

 

Is the exam painful or dangerous?

It is a non-invasive and risk-free examination.

 

 

How is the exam performed?

The patient, sitting on a stool with forehead and chin propped in special facilities, must be fixed for a few seconds on a light source. Meanwhile, a camera performs a series of light scans of the cornea and a computer processes the information received according to the type of pathology under examination or diagnostic needed for each patient.