4317 Factoria Blvd SE Ste A
Bellevue, WA 98006
425-641-2020

Mon-Fri 9 a.m. to 5:30 p.m.

September 22nd, 2014
Exciting New Options for Keratoconu
The past few years have brought exciting advancements for contact lenses for keratoconus and other irregular corneas.
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June 2nd, 2014
Update on contact lenses for irregu
So many exciting advancements in contact lenses for irregular corneas within the past few years! If your have irregular...
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Blog


Jun
2nd
Update on contact lenses for irregular corneas

SCLERAL LENSES

One of the most exciting lenses for irregular corneas in the past few years is the scleral lens.  The scleral lens has several advantages over other lenses for irregular corneas.  The scleral lens vaults over and does not touch the cornea.  This can decrease the risk of scarring.  The lens gently "suctions" to the sclera (white part of the eye) and is therefore extremely stable and will not pop out.  Because the lens "suctions" to the sclera, the eyelid does not interact as much with the lens compared to smaller RGP or soft lenses.  This lack of interaction with the eyelid helps make the scleral lenses more comfortable than other lenses.  For patients with dry eyes there is the added benefit of improved hydration.  There is a layer of saline between the back of the lens and the cornea which keeps the eye moist and comfortable during wear.  So to summarize the advantages of the scleral lens:

1.  Improved comfort vs. other lenses

2.  Less likely to cause scarring

3.  Better for dry eyes than other lenses

4.  Better stability-does not move around so provides more stable vision and not likely to come out

Another exciting aspect of scleral lenses is that they have their own insurance billing codes.  This means that some medical insurance companies are more likely to cover them because these lenses are used mostly for patients who use contact lenses due to medical necessity.  If you have any question whether these may be covered by your particular insurance, our staff will be happy to help. 

SOFT CONTACT LENSES

In the past, soft contact lenses did not provide much improvement for patients with irregular corneas.  There are some newer lenses within the past few years which do provide improved vision for mild to moderate corneal irregularity due to keratoconus or corneal transplant.  These lenses are highly customizable and provide great transmission of oxygen.  If you are wondering if you may be a candidate for one of these lenses, we would be happy to see you for a consultation.

HYBRID LENSES

A hybrid lens has a rigid center with a soft skirt.  Hybrid lenses have been on the market for a few decades.  The limitations in the past were that the soft skirt was not very oxygen permeable and the lens was only appropriate for mild to moderate degrees of irregularity.  The lens technology improved about 1 1/2 years ago and now the soft skirt is extremely oxygen permeable.  The limitation does still remain that it does not seem to work as well for more advanced degrees of irregularity.  This lens can be a great option, for the right patients.  As with the previously mentioned lenses--if you are curious if this could be right for you, please come in for a consultation.

Added on 06/02/2014

by Blog

 




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