Purpose
Dry eye is a common complaint often encountered in optometric practice. However, it is a
difficult condition to treat as clinical signs do not always correlate with patient symptoms. Essential fatty
acids (EFA), particularly omega-3 EFA, may be effective in dealing with the underlying causes.
Methods
A literature review was carried out on the PubMed, ScienceDirect and Ovid databases. Searches
included keywords such as ‘dry eye’, ‘essential fatty acids’ and ‘nutrition’ to find articles relating to the
treatment of dry eye syndrome (DES) with omega-3 EFAs.
Results
Omega-3 and -6 EFAs need to be consumed together within a reasonable ratio to be effective.
Currently, typical diets in developed countries lack omega-3 EFA and this results in an overexposure to
omega-6. Omega-3 supplementation has an anti-inflammatory effect, inhibiting creation of omega-6
prostaglandin precursors. Omega-3 EFAs also demonstrate anti-inflammatory action in the lacrimal
gland preventing apoptosis of the secretory epithelial cells. Supplementation clears meibomitis,
allowing a thinner, more elastic lipid layer to protect the tear film and cornea...
Marco Roncone, Hannah Bartlett, Frank Eperjesi
Contact Lens & Anterior Eye 33:2
49–54
Abstract
| Full Article | PDF
FEATURED ARTICLE FROM OPHTHALMOLOGY
Evaluation of Axial Length Measurement of the Eye Using Partial Coherence Interferometry and Ultrasound in Cases of Macular Disease
Purpose
The present study evaluated the accuracy of using partial coherence interferometry (PCI) and ultrasound (US) to measure axial length in eyes with macular disease, the nature of the double peak (DP) in PCI measurements, and the applicability of intraocular lens (IOL) power calculation.
Design
Retrospective noncomparative case series.
Participants
We studied 132 eyes with macular edema, epiretinal membrane, and macular hole in 132 patients who underwent combined cataract and vitrectomy surgery.
Methods
Axial length was measured using PCI and US. If a DP was observed in the PCI measurement, the posterior peak was used for the IOL calculation. The central retinal thickness (CRT) was measured using optical coherence tomography....
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