간헐외사시 수술 후 장기간 정위를 유지한 환자의 임상양상

다국어 초록 (Multilingual Abstract)

Purpose: To investigate clinical features in patients with orthophoria over three years after surgical correction of intermittent exotropia. Methods: Sex, age at onset and surgery, preoperative and postoperative angles of ocular deviation, type of surgery, associated disorders, and preoperative and postoperative binocular sensory status were retrospectively investigated in 27 patients with orthophoria or ocular deviation under 8 prism diopters (PD) at least three years after surgical correction of intermittent exotropia. Results: The mean age at surgery was 5.3±4.8 years (range, 2 to 27 years). Ten patients (37.0%) were younger than four at the time of the operation, while 17 (63.0%) were four or older. The mean size of the preoperative exodeviation at distance and near was 27.4±7.3PD (range, 15 to 45PD) and 28.2±8.5PD (range, 12 to 50PD), respectively. On the first postoperative day, 7 patients (26.0%), 13 patients (48.1%), 6 patients (22.2%), and 1 patient (3.7%) showed esophoria (9 to 15PD), esophoria (under 8PD), orthophoria, exophoria (under 8PD), respectively. Twenty-two patients (81.5%) developed orthophoria within 2 months after surgery. After three years following the operation, 16 patients (59.3%) had developed orthophoria, while 11 patients (40.7%) showed exophoria within 8PD. Conclusions: At the first postoperative day, most patients (74.1%) were overcorrected, while the rest (25.9%) were either undercorrected or orthophoric. Our investigation showed that patients not initially overcorrected can maintain good results. None of the patients had an A or V pattern of strabismus or dissociated vertical deviation with exodeviation before surgery.

참고문헌 (Reference)

1 "The surgical outcome of intermittent exotropia and the prognostic factors" 39 : 1255-1263, 1998

2 "The relationship between binocular function and the surgical outcome of intermittent exotropia" 42 : 1588-1593, 2001

3 "The Clinical Analysis of Recurrence after Surgical Correction of Intermittent Exotropia" 43 : 2220-2226, 2002

4 "Surgical results of 79 cases of intermittent exotropia in children" 31 : 1594-9, 1990

5 "Risk factors for esotropia and exotropia" 112 : 1349-55, 1994

6 "Related Factors of Surgical Outcome of Unilateral R&R for Basic Type Intermittent Exotropia in Children" 44 : 2844-2849, 2003

7 "Recession of the lateral recti in intermittent exotropia evaluation of the amount of immediate postoperative deviation" 31 : 1445-9, 1990

8 "Recession of the lateral recti" 82 : 203-8, 1969

9 "Preschool vision screening in Korea;results in the year of 2001" 44 : 2318-2327, 2003

10 "Preschool vision screening in Korea results in 2003" 47 : 112-120, 2006

11 "Preschool vision screening for 3 to 6-year old children in Korea" 44 : 971-981, 2003

12 "Ophthalmic screening of 38 age 1 to 2 1/2 years" in child welfare clinics 000 261-7, jpediatrophthalmolstrabismus1980

13 "Ocular deviation" 4 : 567-72, 1964

14 "Mean visual acuity" 111 : 372-4, 1991

15 "Long-term surgical results of intermittent exotropia" 35 : 1321-6, 1994

16 "Factors related to surgical results of intermittnet exotropia" 37 : 179-184, 1996

17 "Factors influencing the outcome of strabismus surgery in patients with exotropia" 8 : 56-60, 2004

18 "Early surgery in intermittent exotropia" 84 : 689-94, 1977

19 "Demographics:geographic variations in the prevalence and management of exotropia" 42 : 82-7, 1992

20 "Consecutive esodeviation then what" 38 : 111-6, 1988

21 "Comparison of surgical results by initial postoperative alignment following bilateral lateral rectus recession and unilateral lateral rectus recession-Medial rectus resection in intermittent exotropes" 40 : 2604-2610, 1999

22 "Comparison of surgical results between bilateral recession and unilateral recession-resection in 25 PD intermittent exotropia" 43 : 2202-2207, 2002

23 "Comparison of Surgical Results Between Bilateral Recession and Unilateral Resection-Recession in Intermittent Exotropia" 44 : 911-916, 2003

24 "Clinical study for risk factors of recurrence in intermittent exotropia" 41 : 1417-1424, 2000

25 "Characteristics of suppression in strabismus" 54 : 683-96, 1955

26 "Binocular vision and ocular motility. Theory and management of strabismus" Mosby 356-372, 2002

27 "Baltimore vision screening project" 103 : 105-109, 1996