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. 1996 Jan;80(1):29–32. doi: 10.1136/bjo.80.1.29

Corneal temperature in patients with dry eye evaluated by infrared radiation thermometry.

H Fujishima 1, I Toda 1, M Yamada 1, N Sato 1, K Tsubota 1
PMCID: PMC505379  PMID: 8664227

Abstract

AIMS: The corneal temperature change following each blink was investigated in patients with dry eye using an infrared radiation thermometer. METHODS: Twenty patients with dry eye and 20 normal controls were enrolled in this study. Subjects kept their eyes open for 10 seconds without blinking and corneal temperature was measured every second with a recently improved infrared radiation thermometer. RESULTS: In the 20 patients with dry eye, corneal temperature change after keeping the eye open for 10 seconds was 0.21 (SD 0.06) degree C while it was 0.61 (0.28) degree C in the 20 normal patients (p = 0.0001). In an exponential equation, the inclination of the slope of a patient with dry eye was smaller than the normal. The correlation coefficient was r = 0.79 (0.16) in patients with dry eye and r = 0.90 (0.07) in normal patients. The mean K value of patients with dry eye was 0.20 (0.13)/second and that of normal subjects was 0.31 (0.19)/second (p = 0.03). CONCLUSION: Findings demonstrate the usefulness of this thermometer for measuring corneal temperature in the evaluation of dry eye. Decrease in corneal temperature with each blink in patients with dry eye was smaller than in normal subjects.

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Selected References

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  1. Beuerman R. W., Tanelian D. L. Corneal pain evoked by thermal stimulation. Pain. 1979 Aug;7(1):1–14. doi: 10.1016/0304-3959(79)90102-7. [DOI] [PubMed] [Google Scholar]
  2. Faber E., Golding T. R., Lowe R., Brennan N. A. Effect of hydrogel lens wear on tear film stability. Optom Vis Sci. 1991 May;68(5):380–384. doi: 10.1097/00006324-199105000-00010. [DOI] [PubMed] [Google Scholar]
  3. Farris R. L. The dry eye: its mechanisms and therapy, with evidence that contact lens is a cause. CLAO J. 1986 Oct-Dec;12(4):234–246. [PubMed] [Google Scholar]
  4. Fujishima H., Toda I., Yagi Y., Tsubota K. Quantitative evaluation of postsurgical inflammation by infrared radiation thermometer and laser flare-cell meter. J Cataract Refract Surg. 1994 Jul;20(4):451–454. doi: 10.1016/s0886-3350(13)80183-6. [DOI] [PubMed] [Google Scholar]
  5. Fujishima H., Yagi Y., Toda I., Shimazaki J., Tsubota K. Increased comfort and decreased inflammation of the eye by cooling after cataract surgery. Am J Ophthalmol. 1995 Mar;119(3):301–306. doi: 10.1016/s0002-9394(14)71171-7. [DOI] [PubMed] [Google Scholar]
  6. Kurihashi K., Yanagihara N., Honda Y. A modified Schirmer test: the fine-thread method for measuring lacrimation. J Pediatr Ophthalmol. 1977 Nov-Dec;14(6):390–397. [PubMed] [Google Scholar]
  7. Lamba P. A., Rohatgi J., Bose S. Factors influencing corneal involvement in leprosy. Int J Lepr Other Mycobact Dis. 1987 Dec;55(4):667–671. [PubMed] [Google Scholar]
  8. MISHIMA S., MAURICE D. M. The oily layer of the tear film and evaporation from the corneal surface. Exp Eye Res. 1961 Sep;1:39–45. doi: 10.1016/s0014-4835(61)80006-7. [DOI] [PubMed] [Google Scholar]
  9. Mapstone R. Determinants of corneal temperature. Br J Ophthalmol. 1968 Oct;52(10):729–741. doi: 10.1136/bjo.52.10.729. [DOI] [PMC free article] [PubMed] [Google Scholar]
  10. Mapstone R. Measurement of corneal temperature. Exp Eye Res. 1968 Apr;7(2):237–243. doi: 10.1016/s0014-4835(68)80073-9. [DOI] [PubMed] [Google Scholar]
  11. Miller M. J., Wilson L. A., Ahearn D. G. Effects of protein, mucin, and human tears on adherence of Pseudomonas aeruginosa to hydrophilic contact lenses. J Clin Microbiol. 1988 Mar;26(3):513–517. doi: 10.1128/jcm.26.3.513-517.1988. [DOI] [PMC free article] [PubMed] [Google Scholar]
  12. Moore C. P. Qualitative tear film disease. Vet Clin North Am Small Anim Pract. 1990 May;20(3):565–581. doi: 10.1016/s0195-5616(90)50071-6. [DOI] [PubMed] [Google Scholar]
  13. Moudgil S. S., Singh M., Parmar I. P., Khurana A. K. Study of tear film flow and break up time (BUT) in trachoma. Acta Ophthalmol (Copenh) 1986 Jun;64(3):295–297. doi: 10.1111/j.1755-3768.1986.tb06922.x. [DOI] [PubMed] [Google Scholar]
  14. Paschides C. A., Kitsios G., Karakostas K. X., Psillas C., Moutsopoulos H. M. Evaluation of tear break-up time, Schirmer's-I test and rose bengal staining as confirmatory tests for keratoconjunctivitis sicca. Clin Exp Rheumatol. 1989 Mar-Apr;7(2):155–157. [PubMed] [Google Scholar]
  15. Rysä P., Sarvaranta J. Corneal temperature in man and rabbit. Observations made using an infra-red camera and a cold chamber. Acta Ophthalmol (Copenh) 1974;52(6):810–816. doi: 10.1111/j.1755-3768.1974.tb01117.x. [DOI] [PubMed] [Google Scholar]
  16. Toda I., Fujishima H., Tsubota K. Ocular fatigue is the major symptom of dry eye. Acta Ophthalmol (Copenh) 1993 Jun;71(3):347–352. doi: 10.1111/j.1755-3768.1993.tb07146.x. [DOI] [PubMed] [Google Scholar]
  17. Toda I., Shimazaki J., Tsubota K. Dry eye with only decreased tear break-up time is sometimes associated with allergic conjunctivitis. Ophthalmology. 1995 Feb;102(2):302–309. doi: 10.1016/s0161-6420(95)31024-x. [DOI] [PubMed] [Google Scholar]
  18. Toda I., Tsubota K. Practical double vital staining for ocular surface evaluation. Cornea. 1993 Jul;12(4):366–367. doi: 10.1097/00003226-199307000-00015. [DOI] [PubMed] [Google Scholar]
  19. Tsubota K., Nakamori K. Effects of ocular surface area and blink rate on tear dynamics. Arch Ophthalmol. 1995 Feb;113(2):155–158. doi: 10.1001/archopht.1995.01100020037025. [DOI] [PubMed] [Google Scholar]
  20. Tsubota K., Yamada M. Tear evaporation from the ocular surface. Invest Ophthalmol Vis Sci. 1992 Sep;33(10):2942–2950. [PubMed] [Google Scholar]
  21. Whitcher J. P. Clinical diagnosis of the dry eye. Int Ophthalmol Clin. 1987 Spring;27(1):7–24. doi: 10.1097/00004397-198702710-00003. [DOI] [PubMed] [Google Scholar]
  22. Xu K. P., Yagi Y., Toda I., Tsubota K. Tear function index. A new measure of dry eye. Arch Ophthalmol. 1995 Jan;113(1):84–88. doi: 10.1001/archopht.1995.01100010086025. [DOI] [PubMed] [Google Scholar]

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