blue block and non blue block

[Peggy333]

Dr. Hagen,

You mentioned  that none of your patients with a blue blocking lens in one eye  and and a clear in the other have problems. May I ask if you have many patients like this and if both the lenses are aspheric? Do nay have one asph and one not? I understand the colors would blend with both eyes open but what aobut light or brightness?
Seems that most surg's use only one mfg - so I have not found anyone who has any experience with a patient with a clear if the other eye is a BB. I am told that I would notice glare or brightness.
Also is it best to use the same mfg of the  lens in the other eye and a  1 pc lens in both eyes rather than have a 3 pc in one eye and a one p.c in the other? I know symmetry is impt.
Lastly If it is a  dense cataract - is the bath method of ultrasound the best at getting a good reading.. There is a  new scan they use in  when the lens is out to get a last read - that shines a light - can that be harmful to the macular or retina?

Thank you,

Peggy

[Peggy333]

Thanks so much. I am considering 2 different surg's one uses the A-scan one the bath method. I thought you may have experience with both and a thought about it as you are very seasoned. With the dense cataract and the sub capsular in the eye it seemed worth asking about that.

Thx again,

Peggy

[John C Hagan III, MD, FACS, FAAO]

Some studies indicate it is but with improved A scan technology it usually is not necessary.  Often multiple readings are taken and repeated until they give consistent results.

At this point you need to discuss with your surgeons. I have added all the information I can
JCH MD

[Peggy333]

I am considering the technics one pc aspheric  in the L eye & am  concerned about depth perception with 2 diff mfg as I know they as spherically different.
Also I am considering the non blue block Alcon the identical one to mine without blue block and was concerned that the eye may see glare in contrast to the other. I am also considering the Alcon non aspheric as when my L eye was without the cataract for 4 yrs it was comfortable vision with both eyes together.

peg

[Peggy333]

Thank you. re the ultra sound  - is it true that for a dense cataract (mine is dense & a sub capsular) thta the bath method of measuring is better than the light?

Peggy

your article on pre-surgery is exceptional and explains everything. Wish i had read it before my 1st eye but I have been lucky with that one.

[John C Hagan III, MD, FACS, FAAO]

1. I do not have patients that complain of different types of IOL in eye related to the IOL or manufacturer, blue blocker or lens material

2. Re-read my ariticle about what to know before surgery

3. Biggest factor is skill and experience of the staff doing the pre op measurements

4. Its called intraoperative abberommetry.  It's not a standard part of surgery and will likely add up to $1000 out of pocket. For most people the extra testing is not going to be worth the expense

JCH MD