Purpose: To assess the effect of oral vitamin D3 supplementation in dry eye after femtosecond laser-assisted in situ keratomileusis (FS-LASIK).
Setting: Liuzhou Worker’s Hospital.
Design: This prospective study included 90 patients selected between January and December in 2019, who underwent fs-lasik operation in our hospital and had obvious symptoms indicating dry eyes one month after operation. The subjects were randomly divided into two groups: the experimental group (n = 45) received vitamin D3 2000 IU / D continuously for 12 weeks; the control group (n = 45) did not take vitamin D3 orally. Ocular surface disease index(OSDI), tear breakup time(TBUT)and Schirmer’s Test I were evaluated pre-medication and 1,3,6 months after treatment. Serum vitamin D level, and the mean concentration of cytokine IL-6, IL-17, IL-23 in tears were also measured.
Results: One month after treatment, the mean OSDI score of the experimental group (11.67 ± 8.53) was significantly lower than that of the control group (23.82 ± 13.22) (P = 0.007). TBUT (10.71±1.02s) and Schirmer I (9.36±0.40mm) of the experimental group were higher than those of the control group (7.49±1.29 s and 7.51±0.44 mm). The OSDI (10.25 ± 5.49), TBUT (10.75±1.09 seconds) and Schirmer I test value (11.34±0.39 mm) of the experimental group were significantly lower than those of the control group (20.22±6.23, 8.36±1.23, 8.12±0.50) at 3 months after treatment. There were significant differences in OSDI, TBUT (P < 0.05) and Schirmer I test value between the two groups at 6 months after treatment. Serum vitamin D3 level was negatively correlated with OSDI score (r=-0.90;P=0.00), and positively correlated with Schirmer I test (r=0.88;P=0.00), TBUT score (r=0.89;P=0.00) and TMH (r=0.80;P=0.00). IL-17 level was shown to be significantly correlated with TBUT (r=-0.25, P=0.014) and Schirmer I test (r=-0.21, P=0.018). IL-6 level was significantly correlated with OSDI (R=0.18, P = 0.020) and TBUT (R=0.20, P = 0.019).

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Posted 02 Jun, 2021
Received 30 May, 2021
Invitations sent on 30 May, 2021
On 28 May, 2021
On 10 May, 2021
Posted 02 Jun, 2021
Received 30 May, 2021
Invitations sent on 30 May, 2021
On 28 May, 2021
On 10 May, 2021
Purpose: To assess the effect of oral vitamin D3 supplementation in dry eye after femtosecond laser-assisted in situ keratomileusis (FS-LASIK).
Setting: Liuzhou Worker’s Hospital.
Design: This prospective study included 90 patients selected between January and December in 2019, who underwent fs-lasik operation in our hospital and had obvious symptoms indicating dry eyes one month after operation. The subjects were randomly divided into two groups: the experimental group (n = 45) received vitamin D3 2000 IU / D continuously for 12 weeks; the control group (n = 45) did not take vitamin D3 orally. Ocular surface disease index(OSDI), tear breakup time(TBUT)and Schirmer’s Test I were evaluated pre-medication and 1,3,6 months after treatment. Serum vitamin D level, and the mean concentration of cytokine IL-6, IL-17, IL-23 in tears were also measured.
Results: One month after treatment, the mean OSDI score of the experimental group (11.67 ± 8.53) was significantly lower than that of the control group (23.82 ± 13.22) (P = 0.007). TBUT (10.71±1.02s) and Schirmer I (9.36±0.40mm) of the experimental group were higher than those of the control group (7.49±1.29 s and 7.51±0.44 mm). The OSDI (10.25 ± 5.49), TBUT (10.75±1.09 seconds) and Schirmer I test value (11.34±0.39 mm) of the experimental group were significantly lower than those of the control group (20.22±6.23, 8.36±1.23, 8.12±0.50) at 3 months after treatment. There were significant differences in OSDI, TBUT (P < 0.05) and Schirmer I test value between the two groups at 6 months after treatment. Serum vitamin D3 level was negatively correlated with OSDI score (r=-0.90;P=0.00), and positively correlated with Schirmer I test (r=0.88;P=0.00), TBUT score (r=0.89;P=0.00) and TMH (r=0.80;P=0.00). IL-17 level was shown to be significantly correlated with TBUT (r=-0.25, P=0.014) and Schirmer I test (r=-0.21, P=0.018). IL-6 level was significantly correlated with OSDI (R=0.18, P = 0.020) and TBUT (R=0.20, P = 0.019).

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