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| OPHTHALMIC IMAGES |
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| Year : 2020 | Volume
: 58
| Issue : 3 | Page : 224 |
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Dynamic tube of ahmed glaucoma valve implant
Premanand Chandran, Abhipsa Sahu, Ganesh V Raman
Department of Glaucoma, Aravind Eye Hospital, Coimbatore, Tamil Nadu, India
| Date of Submission | 24-Mar-2020 |
| Date of Decision | 06-Apr-2020 |
| Date of Acceptance | 21-Apr-2020 |
| Date of Web Publication | 14-Sep-2020 |
Correspondence Address:
Dr. Premanand Chandran
Aravind Eye Hospital, Avinashi Road, Coimbatore - 641 014, Tamil Nadu
India
 Source of Support: None, Conflict of Interest: None
DOI: 10.4103/tjosr.tjosr_27_20
How to cite this article:
Chandran P, Sahu A, Raman GV. Dynamic tube of ahmed glaucoma valve implant. TNOA J Ophthalmic Sci Res 2020;58:224 |
A 12-year-old girl with congenital glaucoma underwent trabeculotomy with trabeculectomy followed by Ahmed glaucoma valve implantation in the left eye. On examination, her best-corrected visual acuity was 6/24, and intraocular pressure was 19 mmHg on four antiglaucoma medications. Slit-lamp examination showed megalocornea with the deep anterior chamber, tube in superior quadrant at 1 o'clock, and clear lens. The dynamic movement of the tube was noticed with eye movement whose length in the anterior chamber varied from 2 mm in primary gaze [Figure 1]a to 4 mm in up gaze [Figure 1]b and 1 mm in down gaze [Figure 1]c. The fundus examination revealed 0.8:1 cup-to-disc ratio with the thin neuroretinal rim. The possible reason for this could be loosening of the nonabsorbable suture, extrusion of the suture securing the plate to the sclera and/or a stronger adhesion of the fibrous capsule around the plate to the fornix than to the sclera.[1],[2] The patient was on regular follow up without surgical intervention as there was no sight-threatening complication. | Figure 1: Slit-lamp photograph showing dynamic tube movement with the movement of eye whose length in the anterior chamber varied from 2 mm in primary gaze (a) to 4 mm in up gaze (b) and 1 mm in downgaze (c)
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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 | |  |
| 1. | Law SK, Coleman AL, Caprioli J. Dynamic tube movement of Ahmed glaucoma valve. J Glaucoma 2009;18:628-31.  |
| 2. | Senthil S, Badakare A. Dynamic tube movement after reimplantation of Ahmed glaucoma valve in a child with glaucoma in aphakia. BMJ Case Rep 2014;2014:bcr2013203197. |
[Figure 1]
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