Q:  I have a 450/20 and astigmatism.And my eyes are becoming weak and seem to not move normally.I have a problem when I.m looking sideways and one eye sems to get stuck and I have to try to correct my vison to see right.I have a stronger correction in the one eye that does not have the problem.And when asked to look at an on coming object my eyes cross very easily.I often get very bad headaches and it seems to get worse than better at my perscription. A: I owuld recommend that you see a strabismus specialist. Andrew Caster, MD

Q: This is re: cataracts. Can you tell me where I can find information to support how a trauma based cataract is formed? A: There is lots of info on the web. Some of it is accurate. Andrew Caster, MD

Q: Hi, I had LASIK done on my eyes about a week and a half ago. The day after surgery, the doctor found on the exam, that my cornea flap had come up on my right eye. They hadn't expected a problem with that eye--less done--so unlike my left eye, hadn't put on a temp. contact lens. Last Thursday, almost a week after surgery, he thought eye was still swollen but otherwise doing OK. (Left eye still seeing double/astigmatism or cornea memory of it?) He wanted me to increase the Prednazone?, and see him again in two weeks. My eye, four days later, is still blurry, and feels like I have a contact lens on. Is this normal--I want to give time a chance to heal--or do you think cornea isn't healing properly? I'm not feeling that great. I don't know if it's fear, the eye drugs, cornea problems, vision problems (which I do have) or some combination. Thanks, Denise Westcott A: It is probably a normal healing pattern, but if you are worried talk to your doctor or get a second opinion. Andrew Caster, MD

Q: I had Custom Alcon Ladar Waterfront lasik done six weeks ago. One eye was supposed to be a monovision treatment, and the dominent eye corrected for distance. I currently am still overcorrected in both eyes. The intended monovision eye about a +1.00, and the other almost a +3.00. I remember that the Wavefront indicated a refraction quite a bit higher than my eyeglass prescription. If the doctor went with the Wavefront output, could this account for the overcorrection? Thanks Much! A: Overcorrections do sometimes occur, even with wavefront. They can be corrected with an enhancement if needed. Andrew Caster, MD

Q: How long does one have to go WITHOUT wearing contacts prior to the exam and prior to the surgery A: It depends on whether they are soft or gas permeable lenses, and how many years you have been wearing them. Most doctors recommend between 7-14 days out for soft lenses and one month for every decade of gas permeable usage, though recommendations will vary. Andrew Caster, MD

Q: I got lasik surgery done on 2/28/05. The first few days, my vision was awesome! Today is my 5th day after surgery and it seems as though my vision is worsening. It's manageable, but it's worrying me. I am using my eye drops religiously and doing lubricating drops 12 or more times a day. Is it normal for your vision to lessen? Will it get better? Thank you. A: Your vision will fluctuate -- sometimes better, sometimes worse -- for up to 3 months. Andrew Caster, MD

Q:  Dear Dr. Caster, I am 35 year old male; I have performed radial keratotomy in Russia back in 1991. and had 20/20 vision until recently when i started experiencing some problems. In the past 14 years, I had some minor side effects like light glare in the evening, seeing stars instead of circles, and vision would sometimes fluctuate (not much and not often), but that was all minor things. Last couple of months, I started experiencing red and painful eye, migrane headaches and blurred vision all this on my left eye, especially after some time spent in front of the computer screen. I went to Bokner Eye Institute in Toronto and I called another two institutes just to see if I would be a good candidate for LASIC. They all gave me different opinions and I don't know where do I stand now. Bokner Eye institute, after examining me told me that I am perfect candidate and that not too many places in Toronto would consider me as potential LASIK patient due to my RK surgery. (Just to mention that my current eye vision is 20/25 on each eye separately, while combined is 20/20 with some astigmatism). Second institution, TLC Vision, told me that they won't consider me at all. Third institution, LasicMD, told me that they would consider me if i have no more than 6 incisions per eye (I have 12 per eye)?!? I am planning to visit regular eye specialist, hoping that he might have some indipendent view, taking into account that all previous were in Lasic business... I wonder how come there are so many different opinions? My real question is should I go with operation? How much it is safe after my RK? Please help... Thanks, Mike A: Personally, I perform Lasik on people like you. I would only get opinions from people who actually perform the procedure, because others are usually not very well imformed about cases like yours that are slightly unusual. Andrew Caster, MD

Q: Dr. Caster, I wanted to know if I would be able to wear colored contact lenses after a lasik surgery. Will I be able to wear contact lenses at all? If yes, how long after a surgery will I be able to wear them. I would appreciate your response A: Yes, and I would wait at least one month. Andrew Caster, MD

Q: I am a pathologist and my eye number is 5 (myopia). My ophthalmologist examine me and aggreed with LASIK. I want to know is there any problem with my job ,I mean use of microscope and how long I should not study my slides by microscope (because of its light ) after doing LASIK ? Thanks M. M , MD A: You could probably resume work within a few days. Although I have treated pathologists, and radiologists, I do worry that a small decrease in the quality of your vision (which is definitely possible) could adversely affect your job performance. Andrew Caster, MD

Q: I had PRK in approx 1993 to correct myopia, approx -7.5. The surgery was great and I had better than 20/40 vision. I have quite a severe astigmatism that was not addressed. My eyes are now about -1.75 and am considering additional surgery. Would this be advisable? A: It is okay to have the surgery. Andrew Caster, MD