What is the purpose of NCT?

The purpose of Non-Contact Tonometry (NCT) is primarily to measure intraocular pressure (IOP). This is an important procedure in optometry and ophthalmology, as elevated intraocular pressure can be an indicator of glaucoma, a leading cause of irreversible blindness. NCT utilizes a rapid puff of air directed at the cornea, which causes a deformation of the corneal shape. By measuring how the cornea responds to this puff of air, the device can calculate the intraocular pressure without the need for contact with the eye, thus enhancing patient comfort and reducing the risk of infection.

Intraocular pressure measurements are crucial in the assessment of eye health, particularly for patients who are at risk of developing glaucoma or already have the condition. Regular monitoring helps in managing treatment effectively and in making timely decisions regarding further evaluations or interventions.