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Editorial
The Endothelium – What Difference do SiH Lenses Make?
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Meeting Synopsis
American Academy of Optometry 2009 Meeting, part 1
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Posters
Does Tear Exchange Differ Between SiH Contact Lens Types?
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In The Practice
Endothelium and SiH lens fitting considerations
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Editorials Latest Editorial Previous Editorials		In The Practice Current Article Archive
The Endothelium – What Difference do SiH Lenses Make? With the invention of silicone hydrogel (SH) contact lenses most hypoxia related complications are reduced and when comparing ocular health between SH contact lens wearers and non lens wearers, only the level of conjunctival staining in SH lens wearers was greater. more		Endothelium and SiH lens fitting considerations Fuchs' dystrophy is an inherited corneal disorder that stems from primary malfunction of the corneal endothelium. A compromised endothelial pump mechanism results in corneal swelling. Patients typically awaken with blurry vision due to increased swelling of cornea overnight, which gradually improves during the day. In more advanced cases, epithelial edema reduces visual acuity, causes pain and induces photophobia. more

Posters Current Poster Archive		Meeting Synopsis Current Article Archive
Does Tear Exchange Differ Between SiH Contact Lens Types? Even though silicone hydrogel (SiHy) contact lenses have provided the corneal surface with exceptional oxygen levels, problems with corneal inflammation and infection have still been observed. One possible explanation for these complications may be tear stagnation under the contact lens due to insufficient tear exchange. more		American Academy of Optometry 2009 Meeting, part 1 Michael Wyss and Michael Baertschi (ODs) used grading scales to confirm the clinical presentation of follicular-like conjunctivitis associated with silicone hydrogels (FoCoSi), a subtype of papillary conjunctivitis. Results showed an incidence of 3.8%. Continuous wear of lotrafilcon A and senofilcon A lenses had the highest affinity for developing this condition, which has both an active and a dormant form. Symptoms were closely correlated with flurorescein staining. more

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*Quick Vote*
Do you typically record endothelial conditions in contact lens wearers?
• I record it at each visit
• I only record findings if I see moderate/severe conditions
• I don't typically record endothelial findings
• I am not sure how to assess the endothelium with my slit lamp
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