title: Qualitative analysis of repaired filtering blebs with anterior segment-optical coherence tomography.
abstract: OBJECTIVE
  To provide a qualitative analysis of filtering blebs after being surgically repaired due to late blebs leaks.
  
  
  METHODS
  Blebs were studied 6 months after surgical reparation using AS-OCT Triton (Topcon®). An analysis was made of the morphological pattern and internal structures of blebs, including the covering, in 10 patients. The images were obtained using OCTs at a wavelength of 1050nm.
  
  
  RESULTS
  According to the Hirooka classification, three different patterns were found in the structure of blebs, which made it possible to correlate them with their functionality. A full covering was observed in 70% of the cases, and they showed sub-epithelial cysts (cystoid pattern). Two cases showed a full conjunctival retraction without Tenon's covering. The walls were thin, with a de-structured bleb (diffuse pattern) being visualised. In the third group, the image showed a partial conjunctival retraction with Tenon's covering. There were some sub-epithelial diffuse cysts with walls following a laminar pattern.
  
  
  CONCLUSIONS
  Using AS-OCT, it is possible to study the bleb's characteristics in detail, as well as the cover, in the case of blebs requiring repair due to late leaks, using conjunctival advancement. It allows for the early visualisation of conjunctival retractions that were not visible in a slit lamp, and to predict the functionality of the blebs by their morphology.
authors.affiliation: Departamento de Oftalmología. Hospital Clínico Universitario, Valencia, España. Electronic address: mcerdaib@gmail.com.
authors.forename: M
authors.initials: M
authors.lastname: Cerdà-Ibáñez
authors.affiliation: Departamento de Oftalmología. Hospital Clínico Universitario, Valencia, España.
authors.forename: V T
authors.initials: VT
authors.lastname: Pérez-Torregrosa
authors.affiliation: Departamento de Oftalmología. Hospital Clínico Universitario, Valencia, España.
authors.forename: A
authors.initials: A
authors.lastname: Olate-Pérez
authors.affiliation: Departamento de Oftalmología. Hospital Clínico Universitario, Valencia, España.
authors.forename: I
authors.initials: I
authors.lastname: Almor Palacios
authors.affiliation: Departamento de Oftalmología. Hospital Clínico Universitario, Valencia, España.
authors.forename: A
authors.initials: A
authors.lastname: Gargallo-Benedicto
authors.affiliation: Departamento de Oftalmología. Hospital Clínico Universitario, Valencia, España.
authors.forename: V
authors.initials: V
authors.lastname: Osorio-Alayo
authors.affiliation: Departamento de Oftalmología. Hospital Clínico Universitario, Valencia, España.
authors.forename: A
authors.initials: A
authors.lastname: Barreiro Rego
authors.affiliation: Departamento de Oftalmología. Hospital Clínico Universitario, Valencia, España.
authors.forename: A
authors.initials: A
authors.lastname: Duch-Samper
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D000869:Anterior Eye Segment / Q000000981:diagnostic imaging*; D003228:Conjunctiva / Q000601:surgery*; D005260:Female; D018463:Filtering Surgery; D005901:Glaucoma / Q000601:surgery*; D006801:Humans; D008297:Male; D008875:Middle Aged; D011446:Prospective Studies; D036301:Qualitative Research; D041623:Tomography, Optical Coherence
keywords: Ampolla de filtración; Anterior segment optic coherence tomography; Bleb morphology; Conjuctival retraction; Cystoid pattern; Filtering bleb; Filtering bleb leaks; Morfología de la ampolla; Patrón quístico; Retracción conjuntival; Seidel en ampollas de filtración; Tomografía de coherencia óptica de segmento anterior