A pilot study of the value of prism adaptation in planning strabismus reoperations.
OBJECTIVE
To evaluate the value of prism adaptation in planning strabismus reoperations.


METHODS
Of 15 patients with persistent strabismus, 9 underwent prism adaptation prior to strabismus reoperation and 6 underwent strabismus reoperation without preoperative prism adaptation. Corrective surgery was performed on the same or new muscles. Follow-up ranged from 3 months to 2 years. A horizontal deviation of 10 prism diopters or less was considered a successful outcome. Statistical analysis of the results was done.


RESULTS
Of the 9 patients who had prism adaptation, 3 (33%) were responders and 6 (67%) were nonresponders. A successful outcome was achieved in 6 patients (67%) who had prism adaptation and 3 patients (50%) who did not. The difference between groups was statistically insignificant (P > .05).


CONCLUSIONS
These results suggest that the benefits of prism adaptation are not significant enough to justify the time consumption and expenses of this test when planning strabismus reoperations, but a larger group of patients should be studied.
Kassem
Rehab R
RR
Cairo University Hospitals, Cairo, Egypt.
D000221:Adaptation, Ocular; D000293:Adolescent; D000328:Adult; D002648:Child; D002675:Child, Preschool; D003941:Diagnostic Techniques, Ophthalmological; D005139:Eyeglasses; D005260:Female; D006801:Humans; D008297:Male; D009801:Oculomotor Muscles / Q000473:pathology / Q000601:surgery*; D013508:Ophthalmologic Surgical Procedures; D010865:Pilot Projects; D012086:Reoperation; D013285:Strabismus / Q000175:diagnosis* / Q000601:surgery*; D015348:Vision, Binocular