Home About us Editorial board Ahead of print Current issue Search Archives Submit article Instructions Subscribe Contacts Login 
  • Users Online: 1229
  • Home
  • Print this page
  • Email this page

   Table of Contents      
PHOTO ESSAY
Year : 2020  |  Volume : 68  |  Issue : 11  |  Page : 2494-2495

Idiopathic spontaneous filtering bleb: Is there an autoimmune etiology?


Department of Glaucoma, Aravind Eye Hospital, Coimbatore, Tamil Nadu, India

Date of Submission26-Feb-2020
Date of Acceptance06-Jun-2020
Date of Web Publication26-Oct-2020

Correspondence Address:
Dr. Premanand Chandran
Department of Glaucoma, Aravind Eye Hospital, Avinashi Road, Coimbatore - 641 014, Tamil Nadu
India
Login to access the Email id

Source of Support: None, Conflict of Interest: None


DOI: 10.4103/ijo.IJO_406_20

Rights and Permissions
  Abstract 


Keywords: Autoimmune disease, scleral thinning, spontaneous filtering bleb


How to cite this article:
Thilagar SP, Venkataraman P, Chandran P. Idiopathic spontaneous filtering bleb: Is there an autoimmune etiology?. Indian J Ophthalmol 2020;68:2494-5

How to cite this URL:
Thilagar SP, Venkataraman P, Chandran P. Idiopathic spontaneous filtering bleb: Is there an autoimmune etiology?. Indian J Ophthalmol [serial online] 2020 [cited 2020 Nov 25];68:2494-5. Available from: https://www.ijo.in/text.asp?2020/68/11/2494/299087



A 45-year-old male presented with complaints of defective vision for near. There was no prior history of trauma, recurrent redness, or surgery. He is a known patient of hypothyroidism and vitiligo. His best-corrected visual acuity was 6/6, N6 in both the eyes (BE). Slit-lamp examination revealed a diffuse, elevated, avascular thin bleb near the limbus in the superonasal quadrant with underlying scleral thinning in BE. Right eye (RE) showed clear cornea, quiet and deep anterior chamber, normal iris pattern, and clear lens. Left eye (LE) showed peripheral corneal vascularisation with lipid deposits at 10'o clock anterior to the area of scleral thinning and bleb formation, the rest of the anterior segment was normal [Figure 1]a and [Figure 1]b. Schirmer's test was normal and Seidel's test did not reveal any leak in BE. His intraocular pressure was 9 and 10 mm Hg in the RE and LE, respectively. Gonioscopy revealed open angles in BE with an area of hyperpigmentation around fistula at 2 o'clock in the RE and increased pigmentation with prominent iris processes in the nasal quadrant in LE [Figure 1]c and [Figure 1]d. The fundus examination revealed an average size disc with a cup to disc ratio of 0.4:1, healthy neuroretinal rim and attached retina in BE.
Figure 1: Right eye showing superonasal diffuse avascular thin bleb (a). Left eye showing superonasal diffuse avascular thin bleb with scleral thinning, corneal vascularisation, and lipid deposits (b). Gonioscopy showing fistula with hyperpigmentation anterior to schwalbe's line at 2'0 clock (arrowhead) in the right eye (c) and increased pigmentation with prominent iris processes in the nasal quadrant in left eye (d). Ultrasound biomicroscopy image of the right (e) and left (f) eye showing communicating fistula between the anterior chamber and subconjunctival space, indicated by the arrowheads

Click here to view


Corneal topography was suggestive of oblique astigmatism with flattening along the meridian of the bleb without evidence of corneal ectasia in BE. Ultrasound biomicroscopy revealed a communicating fistula between the anterior chamber and subconjunctival space in BE [Figure 1]e and [Figure 1]f. Physical examination was unremarkable, except for depigmented patches in the skin. Blood investigations revealed high thyroid peroxidase antibody titer (157 IU/mL), whereas C-reactive protein, rheumatoid factor, and antinuclear antibody were within normal limits.


  Discussion Top


Spontaneous filtering bleb is a rare condition, which can develop if a communicating fistula between the anterior chamber and subconjunctival space is established. Spontaneous filtering bleb has been reported in patients with Axenfeld syndrome,[1] Terrien marginal degeneration,[2] Traboulsi syndrome,[3],[4] connective tissue diseases,[5],[6] and without any ocular or systemic association.[2],[7]

Our patient with hypothyroidism and vitiligo, has scleral thinning and subconjunctival bleb in both the eyes. There were no signs of anterior segment abnormalities or facial dysmorphism. Considering the fact that our patient has 2 autoimmune systemic conditions, we postulate that the scleral thinning and spontaneous bleb formation could be due to autoimmune etiology.

Declaration of patient consent

The authors certify that they have obtained all appropriate patient consent forms. In the form the patient(s) has/have given his/her/their consent for his/her/their images and other clinical information to be reported in the journal. The patients understand that their names and initials will not be published and due efforts will be made to conceal their identity, but anonymity cannot be guaranteed.

Financial support and sponsorship

Nil.

Conflicts of interest

There are no conflicts of interest.



 
  References Top

1.
Nemet P, Bracha R, Lazar M. Spontaneous filtering blebs in Axenfeld syndrome. Am J Ophthalmol 1973;76:590-1.  Back to cited text no. 1
    
2.
Munro M, McWhae J, Romanchuk K, Crichton A, Carter G, Ball A. Two cases of spontaneous filtering blebs, one idiopathic and one associated with Terrien marginal degeneration. Cornea 2014;33:752-4.  Back to cited text no. 2
    
3.
Patel N, Khan AO, Mansour A, Mohamad JY, Al-Assiri A, Haddad R, et al. Mutations in ASPH cause facial dysmorphism, lens dislocation, anterior-segment abnormalities, and spontaneous filtering blebs, or Traboulsi syndrome. Am J Hum Genet 2014;94:755-9.  Back to cited text no. 3
    
4.
Chandran P, Chermakani P, Venkataraman P, Thilagar SP, Raman GV, Sundaresan P. A novel 5 bp homozygous deletion mutation in ASPH gene associates with Traboulsi syndrome. Ophthalmic Genet 2019;40:185-7.  Back to cited text no. 4
    
5.
Mantravadi AV, Stock EL. Spontaneous filtration bleb as a consequence of scleritis. Arch Ophthalmol 2007;125:1578-9.  Back to cited text no. 5
    
6.
Gerke E, Meyer-Schwickerath G, Joussen F. Sclerodermie en coup de sabre with Spontaneous filtering bleb. Klin Monbl Augenheilkd 1976;168:426-8.  Back to cited text no. 6
    
7.
Tatham A, Karwatowski W, Kumar P. Spontaneous bleb formation. Clin Exp Ophthalmol 2011;39:712.  Back to cited text no. 7
    


    Figures

  [Figure 1]



 

Top
 
 
  Search
 
    Similar in PUBMED
   Search Pubmed for
   Search in Google Scholar for
 Related articles
    Access Statistics
    Email Alert *
    Add to My List *
* Registration required (free)  

 
  In this article
Abstract
Discussion
References
Article Figures

 Article Access Statistics
    Viewed307    
    Printed0    
    Emailed0    
    PDF Downloaded31    
    Comments [Add]    

Recommend this journal