Measurement of Dynamic Ocular Surface Temperature in Healthy Subjects Using a New Thermography Device

Klamann, Matthias K. J.; Maier, Anna-Karina B.; Gonnermann, Johannes; Klein, Julian P; Pleyer, Uwe

doi:10.3109/02713683.2012.674610

Cited by 32 publications

(27 citation statements)

References 20 publications

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“…However, our OST was specially designed for the ocular surface and can measure the temperature more accurately and with greater sensitivity [13]. Furthermore, the ocular surface temperature measured by the OST has been reported to be highly reproducible [30]. The differences in the instruments may be the reason for the differences between the findings of Rimas et al and our study.…”

Section: Discussioncontrasting

confidence: 57%

Evaluation of Allergic Conjunctivitis by Thermography

Hara

Shiraishi²,

Yamaguchi³

et al. 2014

Ophthalmic Res

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Purpose: To evaluate ocular surface temperature in assessing the efficacy of anti-allergic eye drops. Methods: Thirteen asymptomatic patients (24.7 ± 2.8 years) with proven seasonal allergic conjunctivitis due to cedar pollen were studied. A 0.025% levocabastine ophthalmic suspension was instilled in one eye (levocabastine eye) and artificial tears in the other eye (artificial tear eye) in a masked fashion 10 min prior to a conjunctival allergen challenge (CAC). Then, a drop of cedar pollen solution was dropped into the conjunctival sac to induce the allergic reaction. The surface temperature of the inferior bulbar conjunctiva was measured before and 30 min after the CAC with a newly developed non-contact ocular surface thermographer (OST). The degree of conjunctival injection and chemosis was also determined by slit-lamp biomicroscopy. The changes in the symptoms were evaluated by a questionnaire. Results: After the CAC, the temperature increased by 0.67 ± 0.10°C in the artificial tear eyes but by only 0.21 ± 0.06°C in the levocabastine eyes (p < 0.05). The score for conjunctival injection was 1.38 ± 0.24 and the chemosis score was 0.85 ± 0.25 for the artificial tear eyes and 0.62 ± 0.27 and 0.08 ± 0.08 in the levocabastine eyes (p < 0.01). The temperature increase was significantly correlated with the conjunctival injection scores (r = 0.63; p < 0.001). Conclusion: The significant correlation of the conjunctival surface temperature with the severity of the conjunctival allergic reaction indicates that the temperature measured by the OST can be used to objectively evaluate the efficacy of topical anti-allergic agents.

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Section: Discussioncontrasting

confidence: 57%

Evaluation of Allergic Conjunctivitis by Thermography

Hara

Shiraishi²,

Yamaguchi³

et al. 2014

Ophthalmic Res

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“…OST measurement has been applied to dry eye disease [8][9][10][11][12], contact lens wear [13,14], laser refractive surgery, infectious eye disease and others [15][16][17][18][19][20]. Nevertheless, to the best of our knowledge, the impact of corneal thickness (CT), endothelial cell density (ECD) anterior chamber depth (ACD) on ocular surface temperature (OST) has not been investigated, yet.…”

Section: Introductionmentioning

confidence: 95%

Correlation of corneal thickness, endothelial cell density and anterior chamber depth with ocular surface temperature in normal subjects

Pattmöller

Wang

Zemova

et al. 2015

Zeitschrift für Medizinische Physik

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“…Kamao et al [14] first described this ocular surface thermographer. In a previous study we indicated a high reproducibility in ocular surface temperature measurements taken with this instrument [15]. The instrument is equipped with an infrared camera module (HX083M1; NEC, Tokyo, Japan) and a color charge-coupled device onboard camera (PKD-101; Pacific Corp., Tokyo, Japan).…”

Section: Methodsmentioning

confidence: 99%

Ocular Surface Temperature Gradient Is Increased in Eyes with Bacterial Corneal Ulcers

Klamann¹,

Maier²,

Gonnermann³

et al. 2012

Ophthalmic Res

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Aims: To investigate the ocular surface temperature gradient in eyes with bacterial corneal ulcers. Methods: Prospective examination of 12 eyes with bacterial corneal ulcers (group 1) and 12 control eyes (group 2). Infrared thermal imaging (Tomey TG 1000) was used to study the temperature of the ocular surface. The mean, minimum and maximum temperature of the ocular surface and temperature course over a time period of 10 s of sustained eye opening were evaluated. Furthermore, a correlation between the overall corneal temperature and the temperature at the base of the corneal ulcers was determined. Results: A significant difference between both groups was present. Mean corneal temperature was 35.6°C ± 0.9 in group 1 and 34.8°C ± 0.8 in group 2 (p = 0.033). The temperature course over 10 s of sustained eye opening was –0.6°C ± 0.4 in group 1 and –0.3°C ± 0.2 in group 2 (p = 0.045). There was a close correlation between the mean temperature at the base of the corneal ulcer and the overall corneal temperature (r = 0.92, p < 0.001). Conclusion: Infrared thermal imaging can be used to objectively determine the increased ocular surface temperature in patients with bacterial corneal ulcers. The use of dynamic thermography may offer new options to monitor ocular surface alterations.

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Measurement of Dynamic Ocular Surface Temperature in Healthy Subjects Using a New Thermography Device

Abstract: Ocular surface temperature measurements made using the Tomey TG 1000 in healthy subjects showed excellent intraobserver reproducibility. This novel non-invasive technique offers new options for increased understanding of the physiology of the ocular surface.

Cited by 32 publications

References 20 publications

Evaluation of Allergic Conjunctivitis by Thermography

Evaluation of Allergic Conjunctivitis by Thermography

Correlation of corneal thickness, endothelial cell density and anterior chamber depth with ocular surface temperature in normal subjects

Ocular Surface Temperature Gradient Is Increased in Eyes with Bacterial Corneal Ulcers

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