%0 Journal Article
%A Carracedo Rodríguez, Juan Gonzalo
%A Wang, Zicheng
%A Serramito Blanco, María
%A Martín Gil, Alba
%A Carballo Álvarez, Jesús
%A Pintor, Jesús
%T Ocular Surface Temperature During Scleral Lens Wearing in Patients With Keratoconus
%D 2016
%@ 1542-2321
%U https://hdl.handle.net/20.500.14352/23189
%X Objective: To evaluate the ocular surface temperature using an infrared thermography camera before and after wearing scleral lens in patients with keratoconus and correlate these results with the tear production and stability.Methods: A pilot, experimental, short-term study has been performed. Twenty-six patients with keratoconus (36.95+/-8.95 years) participated voluntarily in the study. The sample was divided into two groups: patients with intrastromal corneal ring (KC-ICRS group) and patients without ICRS (KC group). Schirmer test, tear breakup time (TBUT), and ocular surface temperature in the conjunctiva, limbus, and cornea were evaluated before and after wearing a scleral lens.Results: The patients wore the scleral lenses from 6 to 9 hours with average of 7.59+/-0.73 hours. No significant changes in Schirmer test and TBUT were found for both groups. No temperature differences were found between the KC-ICRS and the KC groups for all zones evaluated. There was a slight, but statistically significant, increase in the inferior cornea, temporal limbus, and nasal conjunctival temperature for KC-ICRS group and temporal limbus temperature decreasing for the KC group after wearing scleral lens (P<0.05). The conjunctiva and limbus temperature was statistically higher than the central cornea for both groups before and after scleral lenses wearing (P<0.05), but no difference in the peripheral cornea was found. No statistically significant differences in the central corneal temperature were found between the groups after scleral lens wearing (P>0.05).Conclusion: Scleral contact lens seems not to modify the ocular surface temperature despite the presence of the tear film stagnation under the lens.
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