Change font size:
Change contrast:

NEW: OSA – Comprehensive eye surface and tear analyser

I.C.P. OSA is the first apparatus in Poland enabling a comprehensive assessment of the layers of tear membranes.

The device enables a set of painless and non-invasive diagnostic tests to be carried out extremely quickly, starting with an assessment of the tear membrane tearing time, through assessment of the lipid layer up to meibography.

Using I.C.P OSA we can conduct such tests as:

Meibography,

Analysis of the tearing time of the lipid layer without having to use fluoroscein,

Analysis and measurement of the thickness of the lipid layer,

Assessment of the amount of tear membrane,

Pupilometry – measurement of the pupil’s reaction to light and without light,

Corneal topography,

Measurement of the angle of the eyelid.

Dry Eye Disease ( DED) (is a common condition which affects 10-18% of the population of Poland.

One of the main caused of DED is dysfunction, or even even complete disappearance, of the Meibomian glands.

These glands are responsible for production of the lipid layer, whose task is to delay evaporation of tears and stabilise the tear membrane which is vital to the proper functioning of the eye.

The tear membrane consists of three layers:

The mucous (mucin) layer, produced by the goblet cells of the conjunctiva, is in direct contact with the surface of the eyeball,

The aqueous layer, secreted by the lacrimal gland,

The lipid layer, secreted by the Meibomian glands,

In cases where there is dysfunction of the Meibomian glands and a deficiency of the lipid layer, there is excessive tear evaporation, which in turn leads to inflammation of the cornea.

Meibography is therefore of the utmost importance in diagnosing dry eye, as taking photographs in infra-red enables diagnosis of the Meibomian glands, and of major dysfunctions.

I.C.P. OSA software enables analysis of active and inactive areas, and comparison of the patient’s glands with the aid of a diagnostic grading scale.

The images obtained using I.C.P. OSA are subjected to systemic analysis in order to determine in a controlled manner:

A percentage calculation of the area of the existing glands,

A percentage calculation of the area of the missing glands,

An interpretation of the results obtained according to a four point scale:

o Loss of between 0 and 25% of the glands,

o Loss of between 25 and 50% of the glands (marked in yellow),

o Loss of between 50 and 75% of the glands (marked in red),

o Loss of between 75 and 100% of the glands (marked in red).

Analysis of the tearing time of the lipid layer enables the thickness as well as the quality of the lipid layer to be assessed.

With the help of I.C.P.

OSA it is possible to carry out the test without having to use fluorescein (N.I.B.U.T.).

This is a non-invasive and completely automatic test, which means the potential limitations do not apply.

In the case of tests using fluoroscein (BUT), its presence can simulate reflexive tear production and cause changes to the properties of the tear membrane.

I.C.P. OSA also enables analysis and measurement of the thickness of the lipid layer.

The device shows and records the colour and structure of the lipid layer.

The recording shows the thickness of the lipid layer, connected with evaporation of the tear film and symptoms of DED.

Measuring the height of the tear meniscus enables an assessment of the amount of tear membrane.

Pupilometry is measuring the reaction of the pupil (its diameter and reflexes) to light and without light.

The measurement can be made in three modes – scotopic, mesopic and photopic.

Corneal topography is a test enabling the cornea to be mapped.

This test provides an assessment of the front layer of the cornea and reveals irregularities on its surface, and consequently allows for diagnosis of astigmatism or keratoconus.

A measurement of the angle of the eyelid is taken on the lower nasal angle of the eyelid, which is useful when choosing contact lenses.

The test is included in the cost of the eligibility visit for patients who qualify for laser eyesight correction.

The form and coupon are available at www.okolaser.info