Delhi Journal of Ophthalmology

iTrace – A Ray Tracing Aberrometer

Ayushi Sinha1, Siddhi Goel1, Vinay Gupta1, Devesh Kumawat2, Pranita Sahay1
1Dr. Rajendra Prasad Centre for Ophthalmic Sciences, All India Institute of Medical Sciences, New Delhi, India
2EyeQ Superspeciality Eye Hospital, New Delhi, India

Editor-in-Chief, Delhi Journal of Ophthalmology, Dr R.P.Centre, AIIMS.


Corresponding Author:

Pranita Sahay
MD DNB, FICO, FAICO (Ref SX.), FICO (Cornea)
Dr. Rajendra Prasad Centre for Ophthalmic
Sciences, All India Institute of Medical Sciences,
New Delhi, India
Email id: drpranitasahay@gmail.com


Received: 24-AUG-2019 Accepted: 05-SEP-2019 Published Online: 27-DEC-2019
DOI: https://dx.doi.org/10.7869/djo.489

Abstract
Modern ophthalmology focusses on visual quality and not just visual acuity. The quality of vision is affected by both lower and higher order aberrations. An optical aberration is a departure of the performance of an optical system from the prediction of paraxial optics. In this article, we analyse the iTrace Ray-tracing aberrometry and its applications in daily clinical practice. The iTrace system integrates corneal topography with wavefront aberrometry, thereby providing a unique analysis that subtracts corneal from total aberrations in order to isolate the internal aberrations of the eye. It is an extremely useful tool for objective evaluation of dysfunctional lens, improving cataract and refractive surgery outcomes and planning of premium intraocular lenses. Thus, the clinicians must explore this instrument as it is an advanced diagnostic tool that can help the surgeon at all stages of patient care in achieving premium outcomes.

Keywords :Aberrometer, ray tracing aberrometer, iTrace, ocular aberration