Vision Archives

Info on Mini-Sclerals and Jupiter Contact Lens

I have been hearing alot about new content lens from Viscon.
I currently wear a Jupiter lens- sometimes called semi-scelreal because it is much small than large sceleral contact lens.

The Jupiter Scleral falls into 2 main design categories- the 15 mm diameter (mini-scleral) series and the 18 mm diameter series. Both series are true scleral lenses sharing the characteristics that they 1) Bear on the Sclera and 2) Vault the Cornea. A lens that bears on the cornea in any way is not a scleral lens although it may be a corneo-scleral or semi-scleral lens.

The Jupiter 18 mm series is designed to be a semi-sealed lens and does not need to closely contour the cornea. The scleral portion is designed to allow adequate tear exchange but hold a much larger volume of tears. It can address the most irregular and asymmetric corneas as well as provide a large tears for severe dry eye cases.

The Jupiter 15 mm series lens requires a closer contouring to the cornea as the scleral contact is less and the capillary forces must maintain an intact tear layer to prevent bubbles and corneal dessication. The lower volume of tears means tear exchange must be more frequent to prevent a toxic buildup under the lens.

For more info visit :
Visionary Optics

I have Naturally Occurring Mono vision

Have had several trip to the specialist to get fitted for hard lenses for my Keratoconus .. actually I have PMD ( Pellucid Marginal Disease) which is often lumped into same category as treatment is virtually the same.
The eye disease is moderate in my left eye on very mild in right.
After several exams and complaining that when I wore both contacts my vision seems almost worst than just one in my left eye was discovers I have naturally occurring monovison. Actually- I am pretty sure I told last couple eye doctors that my prescription is usually a + on one side and negative on the other but no attention was paid to me …
So what this means is I am far sighted in my right eye and near sighted in my left. When I wear glasses the PMD is not corrected and cant see very well. When I wear hard contact on my left eye I have perfect vision on that eye and it takes care of every up close.
So… in a nit shell I can wear one contact on nothing on my right eye. The left eye looks after things close up and right sees things far way.
Contact lens wearers will often create this affect if they need to wear bi-focals and wear two lenses one correcting near sightedness and the other far sightedness.
This is good news for me as less expense replacing only one contact not too mention cleaners, etc and good for my PMD to have nothing on the cornea.