Our meta-analysis results suggest that diabetic patients are at significantly increased risk of developing primary open-angle glaucoma. Clinicians should be aware of this possibility.
Although the eye itself is regarded an 'immune-privileged' organ, systemic lupus erythematosus (SLE) can affect every ocular structure, leading, if left untreated, to significant visual loss or even blindness. Since ocular inflammation in SLE can antedate the diagnosis of the systemic disease and cause significant morbidity, prompt diagnosis and treatment of the underlying systemic autoimmune disease is imperative.
Nearly every drug may cause changes to ocular tissues through a variety of mechanisms. Medication overdoses, drug-drug interactions but also chronic administration of medications at the recommended doses may lead to ocular toxicity. The ocular side effects, screening for eye toxicity and treatment guidelines for anti-inflammatory and immunosuppressive drugs commonly used by rheumatologists are reviewed herein.
Aim: To investigate the effect of vitamin C and E supplementation in the levels of nitrite, nitric oxide (NO) related metabolite, and ocular surface parameters in diabetic patients. Methods: 50 patients with non-insulin dependent diabetes mellitus were given vitamin C (1000 mg/day) and vitamin E (400 IU/day) supplementation for 10 days. Nitrite levels in tears were measured by photometric determination before and after vitamin supplementation. Tear function parameters (Schirmer test I, BUT, ocular ferning test) and brush cytology analysis of the conjunctival epithelium were also evaluated. Results: Nitrite levels were found to be significantly reduced (p<0.05) after 10 days of vitamin C and E supplementation. Improved values for Schirmer test, BUT test, and ocular ferning test were also found. Goblet cell density and grading of squamous metaplasia showed a significant improvement. Conclusions: Oxidative stress and free radical production are elevated in diabetes mellitus. Antioxidants, such as vitamin C and vitamin E, probably have an important role in reducing the oxidative damage produced by nitric oxide and other free radicals and improving the ocular surface milieu.
We could hypothesize that mutations in COL4A3 and COL4A4 genes are not involved in KC risk in Greek population. Nevertheless, the M1327V AA and F1644F TT genotypes were significantly over-represented in healthy individuals, suggesting a protective role of these genotypes in KC development risk in our population.
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