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Volume 1 -  Questions of the Strabismus Patient Lecture 11 of 24  NEXT»

The patient who presents with strabismus and is told he/she is a candidate for strabismus surgery can respond in a variety of ways.  A few simply say, "Okay" and proceed with scheduling without asking any questions about the actual surgical procedure.  Some of these patients afterwards will ask a little tentatively, "You do take the eye out and lay it on the cheek - don't you?"  These people probably did not ask the question ahead of time because they were afraid to hear the answer.  One wonders why they went ahead with surgery in the first place if they thought the eye was going to be taken out - worked on and put back!  The few patients who ask this question and a few others who ask, "How do you get at the muscle?" are told the following.  Eye muscle surgery is a little like building a ship in a bottle. The surgeon must work in tight spaces with limited access because of the nature of the anatomy of the eye muslces.

Like the builder of the ship in a bottle, the eye surgeon uses special instruments to gain access to the necessary structures manipulating them where they reside. 

1  2 

Whether a patient asks specific questions or not, it is a good idea to explain the overall surgical experience including the outpatient routine, postoperative drops or ointment if used, whether or not patches are used, activity, etc.  Details about the surgical procedure itself are described only if the patient asks.  With regard to informed consent, we inform the patient of three risks:

1. Loss of vision (the plane could crash but it is not likely to do so; the surgeon, like the pilot, wants success as much as you do)

2. Double vision (usually transient - "if persistent, we can fix it")

3. Need for reoperation (give a realistic percentage in your experience but assure patient you'll make a 100% effort in most cases to make the patient's first surgery also the last) Staged surgery is rare.

Not long ago a 23 year old woman who as a pedestrian was hit by a school bus presented with what was diagnosed as bilateral superior oblique palsy.  When her workup was completed and she was advised surgery would be needed, she presented the following list of questions.  How would you answer them if asked?

1. Do I need surgery?

2. Is there another option instead of surgery?

3. How long have you been in practice in this field?

4. Do you, yourself, do the surgery?

5. How many of these kinds of surgeries have you performed?

6. What specifically do you do during the surgery?

7. Do you operate on both eyes, or one then another at a later date?

8. What are the chances that there will be more of a problem following the surgery than before the surgery?

9. What is the percentage of success for this surgery?

10. What is the percentage of success that you have had with this surgery?

11. What contributes to an unsuccessful surgery?

12. Will I need blood?

13. How soon should this be done?

14. How is/are the eye(s) bandaged?

15. What kind(s) of medication does one take during the recovery (if any)?

16. How long is the recovery?

17. Am I required to stay in the hospital for a period of time?

18. What kind of time frame (overall) am I looking at?

19. Am I limited from activities for a period of time?

20. Could this problem return?

21. Will I be able to return to wearing my contacts, and how soon?

Here is how I (EMH) answered these questions:

1. Yes.

2. Not a very good one if you want to see one object (avoid diplopia) in a wider field of vision.

3. 30 years. (This is a tough one for the "new guy", you will just have to work this out.)

4. Yes, but I have help from fellows and residents.

5. I have done approximately 4,000 to 5,000 strabismus surgical procedures. Among these approximately 30 have been for bilateral superior oblique palsy. (Again if this is your first, work it out.)

6. We move one or more muscles to a different position on the eyeball through a small incision in the conjunctiva (loose white covering of the eye). Sometimes we shorten the muscle by taking a peice out and sometimes we take a tuck in a muscle or tendon.

7. We operate on both eyes at one procedure if necessary.

8. Very unlikely, but if this happens we can work with you to make the situation better.

9. With a 100% effort at making the current procedure the last eye surgery for you, there is a 40% chance you will need additional surgery. Your particular case, bilateral superior oblique palsy, is a difficult one.

10. With 1.25 surgeries per patient our success rate is between 90% and 95%.  By success in your case, I mean single binocular vision in a useful field of vision.  But, you will have double vision, less often than before your injury, mostly when you look in extremes of gaze.

11. Several factors including complicated strabismus like yours, improper diagnosis, poor technique, and just plain bad luck.

12. No.

13. It can be done at any time.

14. No eye patches are used ordinarily.  If your cornea dries out or is scratched during surgery, you may need a patch for 24 hours.  We never patch both eyes.

15. Tylenol or other mild analgesics may be used and a combination of antibiotic and steroid drops are used twice a day for 1 week or occasionally longer.  Some surgeons use no post-operative drops.

16. It depends.  Most people can resume moderate activity the next day including reading and watching TV.  Most people can return to work in a clean environment in 2 or 3 days (including school).  Work in a dusty or dirty environment may require a patient to be off work for a week or more.  We discourage swimming for 2 weeks, although you can shower and wash your hair right away.  Nothing will "break or come loose".

17. The procedure is outpatient: the surgery takes 30 to 60 minutes and the total time you will spend at the surgery facility will be approximately 4 hours.

18. We examine you at 1 week and 8 weeks postoperatively as a routine, but more frequently if needed.

19. This has been answered above for the most part.  School age children should be excused from physical education for two weeks.  Adults can resume full activity as tolerated.  Bending, stooping, and lifting is okay.  The muscles will not break or come loose.  Use common sense.

20. Not as it occurred originally, but you may have persistent symptoms if the surgery is not entirely successful.

21. You can wear contact lenses in about 1 week.

How about that!

The Strabismus Minute, Vol.1, No. 16 Copyright (C) 1999 Eugene M. Helveston All Rights Reserved

Editor-in-Chief: Eugene M. Helveston, M.D.

Associate Editor: Faruk H. Orge, M.D.

Editorial Board: Bradley C. Black, M.D.

   Edward O'Malley, M.D.

   David A. Plager, M.D.

   Derek T. Sprunger, M.D.

   Daniel E. Neely, M.D.

   Naval Sondhi, M.D.

Senior Editorial Consultant: Gunter K. von Noorden, M.D.

Graphics: Michelle L. Harmon

Technical Support: George J. Sheplock, M.D.


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