Chronic blepharitis is a challenge in clinical practice because there are many factors involved which might cause it or predispose its recurrence. The presence of seborrhea or parasites (acarus) in the palpebral pilose follicles such as Demodex Folliculorum, are conditions which are easy to handle but difficult to achieve total resolution. This article presents a bibliographic revision of the therapeutic choices for each case.

The protocol of the Iberoamerican Epidemiology Network in Visual and Ocular Health (Reisvo) was standardized through the development of a pilot study. Standardization was measured through the test’s repeatability and reproducibility, as well as through its degree of agreement with the reference standard. Methodology: There was evaluated a group of healthy schoolchildren between 5 and 15 years of age, who met the inclusion and exclusion criteria under the guidelines of Resolution 8430 of 1993. Two observers performed three measurements of static retinoscopy, and an expert performed cycloplegic retinoscopy. <em><strong>Results:</strong></em> Spherocylindrical forms were converted to Fourier analysis in three components: M, J₀ and J₄₅. Intra- and inter-examiner agreement, measured with intraclass correlation coefficient for static retinoscopy, was high in component M, both for intra- and inter-examiner agreement in static retinoscopy, and for correlation between static retinoscopy and cycloplegic retinoscopy. The agreement for components J₀ and J₄₅ was weak or zero, and they did not show clinical differences between observers. Conclusions: Static retinoscopy showed good repeatability and reproducibility compared to cycloplegic retinoscopy in implementing the Reisvo protocol.

Polyunsaturated essential fatty acids Omega 3 and omega ‐6 have a competitive inhibitory effect in the organism. The term non‐inflammatory refers to a diet rich in Omega 3. There are reports of benefits of Omega ‐3 essential fatty acid supplementation for patient with inflammatory Dry Eye Syndrome. Omega 6 fatly acid is converted to arachidonic acid which cascades into the chemistry of inflammation and immunologic responses.