title: Ocular surface changes after strabismus surgery with different incisions.
abstract: OBJECTIVE
  To compare ocular surface changes after strabismus surgery with different incisions.
  
  
  METHODS
  One hundred and twenty eyes with exotropia were randomly assigned to Group A (limbal incision) or Group B (fornix incision). Dry eye questionnaire, corneal sensitivity, tear film breakup time (TFBUT), Schirmer I test (SIT), and corneal fluorescein staining (CFS) were assessed at 1 day preoperatively and at different postoperative times.
  
  
  RESULTS
  In the A group, dry eye questionnaire scores increased and TFBUT decreased at postoperative weeks 1, 2, and 4. Corneal sensitivity decreased at postoperative weeks 1 and 2. In the B group, dry eye questionnaire scores increased and TFBUT decreased at postoperative weeks 1 and 2. Corneal sensitivity did not change. Postoperative between-group differences were significant in dry eye questionnaire scores (P = 0.0009, 1 week; P < 0.0001, 2 weeks; P = 0.0001, 4 weeks) and TFBUT (P = 0.004, 1 week; P = 0.0003, 2 weeks; P = 0.0001, 4 weeks). Between-group differences in CFS were significant postoperatively (P = 0.045, 1 week; P = 0.020, 2 weeks).
  
  
  CONCLUSIONS
  Compared to fornix incision, limbal incision results in more serious dry eye symptoms and has a greater impact on corneal sensitivity and tear film stability.
authors.affiliation: Department of Ophthalmology, The Second People's Hospital of Jinan, 148#, Jingyi Road, Jinan, 250001, People's Republic of China, liqian078@sina.com.
authors.forename: Qian
authors.initials: Q
authors.lastname: Li
authors.forename: Te
authors.initials: T
authors.lastname: Fu
authors.forename: Jun
authors.initials: J
authors.lastname: Yang
authors.forename: Qiao-Ling
authors.initials: QL
authors.lastname: Wang
authors.forename: Zhong-En
authors.initials: ZE
authors.lastname: Li
mesh_terms: D000293:Adolescent; D000328:Adult; D002648:Child; D003315:Cornea / Q000503:physiopathology*; D015352:Dry Eye Syndromes / Q000503:physiopathology*; D005099:Exotropia / Q000503:physiopathology / Q000601:surgery*; D005260:Female; D015590:Fluorophotometry; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008875:Middle Aged; D009801:Oculomotor Muscles / Q000503:physiopathology / Q000601:surgery*; D013508:Ophthalmologic Surgical Procedures / Q000379:methods*; D011446:Prospective Studies; D011795:Surveys and Questionnaires; D013536:Suture Techniques; D013666:Tears / Q000737:chemistry / Q000502:physiology*