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Infrared thermal imaging system to measure corneal temperatures

Poster Details

First Author: A.Abulafia ISRAEL

Co Author(s):    A. Michaeli   E. Assia           

Abstract Details


To compare an indirect infrared thermal imaging system to a direct intra-stromal temperature measurement during phacoemulsification


Department of ophthalmology, Meir Medical Center, Kfar Saba, Israel


In this prospective experimental study using porcine eyes, temperature recordings were taken at the incision site (under several phacoemulsification techniques) using two different measuring methods. Group 1 – using a direct contact measurement: A 20G slit knife was used to create a corneal tunnel parallel to the phaco incision site. A thermocouple electrode connected to a temperature recorder was inserted. Temperature measurements were taken at baseline and every 15 seconds during phacoemulsification. Group 2 - using a non-contact measurement: Continuous measurements were taken using an infrared thermal imaging (IR) system. Data was retrieved and analyzed using digital software.


Correlation between the two temperature measurement systems was calculated by the following steps: Pearson Correlation (R) for each surgical method; R-square for each surgical method (R2); Average of R-square for all methods; Final R was extracted from the average R-square by the simple square root. A high correlation (r=0.93, P<0.001) was found between the temperature values recorded by the two measuring methods.


An Infrared thermal imaging system is a non invasive valid method for corneal temperature assessment during phacoemulsification. FINANCIAL DISCLOSURE?: No

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