Digital analysis of unilateral ptosis repair: external levator advancement vs. Müller's muscle conjunctival resection
Arq. bras. oftalmol
; 87(2): e2023, 2024. tab, graf
Artigo
em Inglês
|
LILACS-Express
| LILACS
| ID: biblio-1533800
Biblioteca responsável:
BR1.1
ABSTRACT
ABSTRACT Purpose:
Evaluation of lid contour and marginal peak point changes to compare outcomes of external levator advancement and Müller's muscle conjunctival resection surgery in unilateral ptosis.Methods:
We reviewed the charts of unilateral ptosis patients who underwent external levator advancement or Müller's muscle conjunctival resection. Eyelid contour analysis was conducted on preoperative and 6-month postoperative digital images. This was performed with the multiple margin reflex distances technique, measuring the vertical distance from a line intersecting the center of the pupil to the eyelid margin at 10 positions at 2 mm intervals. The marginal peak point changes were analyzed digitally using the coordinates of the peak point according to the pupil center. Each position's mean distance was compared preoperatively, postoperatively, and with the fellow eyelid.Results:
Sixteen patients underwent external levator advancement and 16 patients had Müller's muscle conjunctival resection. The mean margin reflex distance was improved by both techniques (1.46 vs. 2.43 mm and 1.12 vs. 2.25 mm, p=0.008 and p=0.0001 respectively) and approached that of the fellow eyelid (2.43 vs. 2.88 and 2.25 vs. 2.58 mm, p=0.23 and p=0.19, respectively). However, statistically significant lid margin elevation was limited to between the N6 and T6 points in the external levator advancement group. Whereas, significant elevation was achieved along the whole lid margin in the Müller's muscle conjunctival resection group. The marginal peak point was shifted slightly laterally in the external levator advancement group (p=0.11).Conclusions:
Both techniques provide effective lid elevation, however, the external levator advancement's effect lessens toward the canthi while Müller's muscle conjunctival resection provides more uniform elevation across the lid margin. The margin reflex distance alone is not sufficient to reflect contour changes.
Texto completo:
Disponível
Coleções:
Bases de dados internacionais
Base de dados:
LILACS
Idioma:
Inglês
Revista:
Arq. bras. oftalmol
Assunto da revista:
Oftalmologia
Ano de publicação:
2024
Tipo de documento:
Artigo
País de afiliação:
Turquia
Instituição/País de afiliação:
Van Training and Research Hospital/TR
/
Zonguldak Bulent Ecevit University/TR