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Difference in ocular surface temperature by infrared thermography in phakic and pseudophakic patients.

Sniegowski M, Erlanger M, Velez-Montoya R, Olson JL - Clin Ophthalmol (2015)

Bottom Line: There were no statistical differences among the study groups (P=0.3).There was a nonsignificant negative correlation trend between age and surface temperature in the phakic group.Although cataract extraction and intraocular lens implantation seem to induce a mild increase in ocular surface temperature, the effect is not clear and not significant.

View Article: PubMed Central - PubMed

Affiliation: Ophthalmology Department, University of Colorado School of Medicine, Rocky Mountain Lions Eye Institute, Aurora, CO, USA.

ABSTRACT

Purpose: To assess the change in ocular surface temperature between healthy phakic and pseudophakic patients.

Methods: We included patients with no history of ocular disease other than cataract. Patients were divided into three groups: clear lens, cataract, and pseudophakic. All patients had two ocular surface digital thermal scans. An average of five surface points was used as the mean ocular surface temperature. Results were analyzed with a one-way analysis of variance and a Tukey's least significance difference test. The patients were further divided into phakic and pseudophakic groups. Correlation coefficients between several variables were done in order to assess dependencies.

Results: Fifty-six eyes (28 cataracts, 12 clear lenses, 16 pseudophakic) were enrolled. The mean ocular surface temperature in the cataract group was 34.14°C±1.51°C; clear lens: 34.43°C±2.27°C; and pseudophakic: 34.97°C±1.57°C. There were no statistical differences among the study groups (P=0.3). There was a nonsignificant negative correlation trend between age and surface temperature in the phakic group. The trend inverted in the pseudophakic group but without statistical significance.

Conclusion: Although cataract extraction and intraocular lens implantation seem to induce a mild increase in ocular surface temperature, the effect is not clear and not significant.

No MeSH data available.


Related in: MedlinePlus

Graphic representation of the correlation between patient’s age and ocular surface temperature.Abbreviations: Temp, temperature; PCIOL, posterior chamber intraocular lens.
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f2-opth-9-461: Graphic representation of the correlation between patient’s age and ocular surface temperature.Abbreviations: Temp, temperature; PCIOL, posterior chamber intraocular lens.

Mentions: Figure 2 summarizes the charts in which we plot the OST and the age of each group. Table 1 summarizes each group respective correlation coefficient and its significance level. In Chart A, the age was plotted against the mean OST of all patients with ARC, in which a weak, nonsignificant negative correlation was observed. The same type of behavior was observed in Chart B in which the OSTs of all the phakic patients were plotted against their age. Finally, the OST of the pseudophakic group had a very weak positive correlation with their ages, without statistical significance.


Difference in ocular surface temperature by infrared thermography in phakic and pseudophakic patients.

Sniegowski M, Erlanger M, Velez-Montoya R, Olson JL - Clin Ophthalmol (2015)

Graphic representation of the correlation between patient’s age and ocular surface temperature.Abbreviations: Temp, temperature; PCIOL, posterior chamber intraocular lens.
© Copyright Policy
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4358693&req=5

f2-opth-9-461: Graphic representation of the correlation between patient’s age and ocular surface temperature.Abbreviations: Temp, temperature; PCIOL, posterior chamber intraocular lens.
Mentions: Figure 2 summarizes the charts in which we plot the OST and the age of each group. Table 1 summarizes each group respective correlation coefficient and its significance level. In Chart A, the age was plotted against the mean OST of all patients with ARC, in which a weak, nonsignificant negative correlation was observed. The same type of behavior was observed in Chart B in which the OSTs of all the phakic patients were plotted against their age. Finally, the OST of the pseudophakic group had a very weak positive correlation with their ages, without statistical significance.

Bottom Line: There were no statistical differences among the study groups (P=0.3).There was a nonsignificant negative correlation trend between age and surface temperature in the phakic group.Although cataract extraction and intraocular lens implantation seem to induce a mild increase in ocular surface temperature, the effect is not clear and not significant.

View Article: PubMed Central - PubMed

Affiliation: Ophthalmology Department, University of Colorado School of Medicine, Rocky Mountain Lions Eye Institute, Aurora, CO, USA.

ABSTRACT

Purpose: To assess the change in ocular surface temperature between healthy phakic and pseudophakic patients.

Methods: We included patients with no history of ocular disease other than cataract. Patients were divided into three groups: clear lens, cataract, and pseudophakic. All patients had two ocular surface digital thermal scans. An average of five surface points was used as the mean ocular surface temperature. Results were analyzed with a one-way analysis of variance and a Tukey's least significance difference test. The patients were further divided into phakic and pseudophakic groups. Correlation coefficients between several variables were done in order to assess dependencies.

Results: Fifty-six eyes (28 cataracts, 12 clear lenses, 16 pseudophakic) were enrolled. The mean ocular surface temperature in the cataract group was 34.14°C±1.51°C; clear lens: 34.43°C±2.27°C; and pseudophakic: 34.97°C±1.57°C. There were no statistical differences among the study groups (P=0.3). There was a nonsignificant negative correlation trend between age and surface temperature in the phakic group. The trend inverted in the pseudophakic group but without statistical significance.

Conclusion: Although cataract extraction and intraocular lens implantation seem to induce a mild increase in ocular surface temperature, the effect is not clear and not significant.

No MeSH data available.


Related in: MedlinePlus