Will you please help me determine what lenses to purchase based on my script?
OD - Sphere -1.00 Cylinder SPH.
OS- Sphere -1.00 Cylinder -.50 Axis 110
Thanks in Advance!
It was 2 yrs ago that I bought a Cressi Focus for my 13 year old daughter, so I apologize for not remembering more details. I will say that my daughter was and still is completely satisfied with the mask and the lenses despite the fact that her prescription has changed slightly.
I began by checking with Leisure Pro sales people who told me what strengths the lenses were sold in. Next, I simply took that list to our family optometrist and asked them for their professional advice. He gave me her current prescription, then explained, "These are the strengths you should order because ..." What followed was some medical jargon that I couldn't understand, but I didn't care since he'd already told me what to order. (I still wasted a little time by listening just to be polite.)
I don't feel like I've helped much, but I hope it's helped some.
Thanks all for the great feedback, Cecil thats great info... and I appreciate the lesson in latin. And you are absolutley right the primary purpose of this purchase is the see better during night dives, since I dont do well with contacts its the most effective soltution, thanks again!
O. S. stands for "oculus sinister", which is Latin for "left eye".
O. D. stands for "oculus dexter", which is Latin for "right eye".
Sph. stands for "spherical lens".
So... -1.00 is the strengh for both your left and right eye and that is the strength that you need in the focus mask corrective lenses. Im not trying to tell you what to do but, Im not really sure you want to spend that kind of money for just a -1.00. That is really not bad at all. My lenses were a -3.5 and -4.5.
I dive with my contacts and havent had any trouble at all with them. I originally got the mask and lenses for emergency only situations. I do like to use the mask with the corrective lenses when I night dive.
Overall, I think the focus is a great mask however changing the lenses is a little tricky. The fine folks at Leisurepro offered to change mine for me but one lens was on backorder at the time so I had to figure it out.
Hope this helps.
I am assuming you are near sighted and your prescription is not really that strong. It appears that you need lenses that are -1.00 for both eyes. Your left eye may have a slight astigmatism if Ia m reding your prescription correctly. There are a variety of web pages that will explain what the numbers mean i.e. allaboutvision.com. I am not an optometrist so my word is not professional by any means.
The corrective lenses are only + or - in 1/2 stops based upon a most basic corrective measure, much like generic reading glasses would be.
If your script is -1.00, then get the -1.0 lenses.
I have a couple of Cressi masks with corrective lenses, for both my wife and I, and they have been a very good matchup based upon the most simplistic element of correction. Our scripts fall into the 1/4 range, so we went with the numbers just slightly under our actual scripts, as directed by my eye doctor, in order to reduce headaches due to the automatic magnification of water to begin with.
I hope this helps.