Email: December 05, 2006 Q: I am thinking about getting Lasik surgery, but I am an active swimmer. How long do I have to wait after the procedure until I am allowed to swim ? Thanks! Amanda A: I suggest that people stay out of the water for a week. Andrew Caster, MD

Email: December 06, 2006 Q: I am considering having LASIK surgery in the near future. I have heard that seven years post-LASIK, eye doctors are finding that glaucoma is being misdiagnosed in LASIK patients because their eye pressure is high. Can you please comment? A: After lasik, the eye pressure measurements must be adjusted to take into account the fact that the corneal thickness has been changed. So you should tell your eye doctor that you have had Lasik so he/she can make that adjustment. Andrew Caster, MD

Email: December 07, 2006 Q: My right eye is a -3.75 -3.75 and the cornea thickness was at 520 is that thick enough to do lasik and not prk. The cornea is healthy. A: In most situations, that is thick enough to perform Lasik. Andrew Caster, MD

Email: December 08, 2006 Q: I'm a -12 and -13 in each eye. What would the best thing for me to get done? My vision is getting worse. What do you recommend? A: If your vision is getting worse, then you should wait until it has stopped changing. You are at the upper limit for laser vision correction, and should consider looking into the phakic intraocular lenses. Andrew Caster, MD

Email: December 15, 2006 Q: Hi, I have been using power glasses/contact lens since childhood. My number is SPH: (-)8 & CYL: (-) 1.75. The doctor says I am not a suitable candidate for LASIK since my cornea is very thin. What do you suggest? Regards, Asad S. A: For people with thin corneas, the Lasik without the flap, also known as PRK or Advanced Surface Treatment, is often an option. the other option, which is more invasive, is the phakic intraocular lenses, also known as the intraocular contact lens. Andrew Caster, MD

Email: December 21, 2006 Q: I had RK surgery done in 1990. Can I still have lasik done? I'm both near and far sighted. Thanks, Ed A: Yes. Andrew Caster, MD, FACS

Email: December 25, 2006 Q: Dear Doctor, I have uveitis disease and I want to know if I can have Lasik surgery or any other type of vision correction to see without glasses (I can't see far distances).Please help me. Best Regards, Shiva A: Laser vision correction would only be possible if your uveitis has been mild and has been under very good control lately. Andrew Caster, MD

Email: December 27, 2006 Q: I had lasik surgery August 06. There is some dryness to my eyes and floaters. When is it safe to use sunbeds? Thank you. A: It is safe to use sunbeds if you protect your eyes. Andrew Caster, MD

Email: December 30, 2006 Q: Dear Dr. Caster, I just want to know what anti-reflective coating on glasses is made of and is it completely safe? Is there any health concerns with these coatings? Thanks. A: There are no health concerns about using anti-reflective coatings on glasses. The coatings can be easily scratched, so you should not touch them. The only possible health concern would be if the material were ingested. Andrew Caster, MD

Email: December 31, 2006 Q: I have a thin cornea of 520 micron and my left eye is -10.00 and my right eye is -12.00. And my pupil size is 5mm. I am 45 years old. Can I have any type of Lasik at all due to my thin cornea and high prescription? If not, is monovision an option for me? A: Your corneas are not particularly thin; it is just that your prescription is on the high side. You are a candidate for the PRK version of laser vision correction, and monovision is certainly an option. Andrew Caster, MD

Email: January 01, 2007 Q: Hello Doctor. My question: If I have LASIK or any other treatment to correct my condition of myopia (2.0 and 2.25) will I then lose some of the acuity of my near vision? I have always felt that I have excellent near vision, ie. in my house I was always the one asked to thread the needle, and I do a lot of reading. Will I need reading glasses after this procedure? A: People who are nearsighted and are not wearing glasses or contact lenses will usually have excellent near vision, unless they also have a fair amount of astigmatism. After your treatment, your near vison will be like it is with distance glasses or contact lenses on. Andrew Caster, MD

Email: January 02, 2007 Q: Dear Dr. Caster, I had lasik done 1 year ago. I think I was slightly overcorrected. My vision is around 20/30. Can the surgeon fix this problem to get a patient back to 20/20. Thanks. A: Yes. Andrew Caster, MD, FACS

Email: January 05, 2007 Q: I have a very slight myopia of -0.75 (I'm near-sighted). I may have a slight astigmatism. I'm wondering if the procedure will work as well on such a slight prescription, and if it is worth it. Thanks. A: The less the correction, the better the procedure works. Andrew Caster, MD

Email: January 05, 2007 Q: I have had chronic dry eye for many years, which is the predominant reason that I never became a contact lens wearer. I really want to get Lasik done as it is covered by my health plan only until April (at which time I graduate University and am off my father's plan). My eyes have been doing better with flaxseed oil intake, however my eye doctor has told me I am still at a higher risk. How much higher is this risk and is it a sufficient reason NOT to go ahead with the surgery. I am only 21 years old and my eyes are extremely precious as I have my whole life ahead of me. However I know of four family members who don't have chronic dry eye, have had the surgery and have experienced no problems. Is dry eye a common complaint of patients who have had the surgery, or are other complications more common? Please let me know as I do not have any idea of what to do. My sincerest thanks, Sheen M. A: When dry eye is a concern, you may be better off having Lasik without a flap, also known as PRK, Lasek, or EpiLasik. Andrew Caster, MD

Email: January 05, 2007 Q: I am 47 years old and have been told by my past eye doctors that I'm not a good candidate for LASIK because of my degree of nearsightedness (-14 and -12.75). I also have an astigmatism. A few days ago, however, I had a LASIK exam and was told I am an excellent candidate and that my vision could be corrected to 20/20. My cornea thickness is normal. Can you give me your opinion? Thank you. A: Lasik can be used for this range of nearsightedness, but the odds of difficulties -- including need for enhancement, as well as postop glare/halos -- is definitely higher than for lower corrections. The phakic intraocular lens is also a possibility. It involves permanently placing a plastic lens inside the eye. Andrew Caster, MD

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