Q: I'm thinking about Lasik. If I do it and need more than one procedure (my contact rx is -5.25 and -5.75) which I understand is possible, how long do I have to wait between procedures? Thanks. A: Most doctors recommend wainint at least 3 months before an enhancement. Andrew Caster, MD www.castervision.com

Q: I'm 19 years old and I have been wearing contact lenses since I was 11. Right now my LEFT eye is 5.25 and RIGHT eye is 5.75. I would really like to get laser eye surgery, but would you recommend I wait a few more years because my eye sight might still be changing? Any infomation is helpful. Thank you. Ryo A: Your eyes may or may not be changing. If your prescription has been changing then I would wait. If it has been constant for 2 years then you have probably stopped changing. Andrew Caster, MD www.castervision.com

Q: Can LASIK surgery lead to glaucoma? I am now 52 years old. I had lasik surgery in August 2003 and a follow-up surgery in March 2004. My left eye was corrected for distance and my right eye for reading. on 6/27/05 I was diagnosed with open angle glaucoma. My left eye is very bad. My right eye shows evidence of gluacoma but not to the extreme of the left. Could a complication from the lasik surgery have lead to glaucoma-like symptoms? Thank you. A: No, Lasik cannot cause glaucoma. Andrew Caster, MD www.castervision.com

Q: My husband has Lasik a month ago and from week 2 thru today he can't see out of his right eye. We saw the doctor today and he said cells growing under flap and he needs to lift flap and clean. Then he said he would put a contact lens on that eye for 24-48 hours. What is that for? I can't find anything on the web that explain that. I saw on a website that topical steriods and antibiotics are sometimes given as well. What are those and should we insist they prescribe those for him this time? Is there anything my husband can do to keep this from happening again? Thank you, Donna A: Your hustand has a condition called epithelial ingrowth, which is a rare complication following Lasik. It consists of cells from the outermost layer of the cornea growing under the flap. Fortunately, it is easy to treat, by lifting the flap and simply wiping away the offending cells. The contact lens is used to help prevent the cells from growing again under the flap. Andrew Caster, MD www.castervision.com

Q: I am a 47 year old male, nearsighted (about 20/200). With my gas permeable contacts I am corrected to 20/20. I do not need reading glasses to read. If I have Lasik, will I then need reading. glasses? Also, will having Lasik affect my participation in skydiving and scuba diving? Thank you, R. Hope Seattle A: Your near vision should be the same after Lasik as it is with your contacts. Lasik will not affect your participation in skydiving or scuba diving. Andrew Caster, MD Caster Eye Center

Q: i had lasik operation in my both eyes.but there was still number in my eye.so my doctor did two more operation to remove number but he couldnt.Now my both eye have waves in cornia.so i have to wear semisoft lens. Sir can u just tell me how these waves come in my eye..? and how can i remove it..? A: I would recommend that you obtain a second opinion. Andrew Caster, MD

Q: I am 47 f and my prescription has remained -250 R-L since 20's. I was just getting ready to do Lasik when I developed a macular pucker in the R eye. My correction remains the same but I have that weird distortion. Can I still do Lasik for my nearsightedness or will it cause further problem. A: The Lasik will not improve the distortions from the macular pucker. It should not affect it. Andrew Caster, MD

Q: my doctor has like 2 procedure he does, i didn't realize there are much options out there. he does lasik / intacs. how do i choose what will be best. im soo scare if anything were to go wrong, can i still see, if the worse does happen? from reading the post im interested in something that does not require minimum cutting and also correctin my stigmatism. please advise A: Lasik is much more popular and in general better than Intacs. Intacs is reversible, however, if you are not satisfied, while Lasik can be enhanced but not reversed. Andrew Caster, MD

Q: My doctor has recommended PRK surgery - I am just wondering if anyone has ever gone blind from this surgery. I guess I'm kind of scared. A: I am not aware of any cases of blindness. It is normal to be afraid; you must feel comfortable enough, though, before you go through the procedure. Andrew Caster, MD

Q: so that i can make an informed decision what is the difference between a standard & a delux lasik procedure? thanks A: Custom (also known as wafefront-guided) Lasik treats the eye with a more complicated pattern that is custom determined for each patient. Both use the same laser and other equipment. There is a lot of information on the web about this. Andrew Caster, MD