TY  - JOUR
A1  - Alnawaiseh, Maged
A1  - Schubert, Friederike
A1  - Nelis, Pieter
A1  - Wirths, Gabriele
A1  - Rosentreter, André
A1  - Eter, Nicole
T1  - Optical coherence tomography (OCT) angiography findings in retinal arterial macroaneurysms
JF  - BMC Ophthalmology
N2  - Background

Optical coherence tomography angiography is a novel imaging technique that allows dyeless in vivo visualization of the retinal and choroidal vasculature. The purpose of this study was to describe optical coherence tomography (OCT) angiography findings in patients with retinal arterial macroaneurysms (RAMs).

Methods

Three eyes of three patients with RAMs were retrospectively included. Fundus photography, OCT, fluorescein angiography (FA), and OCT angiography were performed. The entire imaging data was analyzed in detail.

Results

OCT angiography could detect the RAMs noninvasively without dye injection. By simultaneously observing the OCT scans, it was possible to determine the depth of the RAMs in the retina, to detect the exact localization in relation to the main vessel, and to determine the level of blood flow in the RAMs.

Conclusions

OCT angiography can clearly visualize RAMs without use of a dye. It also allows layer-specific observation of blood flow in each layer of the RAM. OCT angiography provides additional dynamic information on RAMs, which is not obtained with FA and facilitates a better understanding of its morphology and activity. This information in combination with ICG and fluorescein angiography can help to optimize direct laser treatment.
KW  - OCT angiography
KW  - Retinal arterial macroaneurysms
KW  - Fluorescein angiography
Y1  - 2016
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-164702
VL  - 16
IS  - 120
ER  - 
TY  - JOUR
A1  - Rosentreter, André
A1  - Lappas, Alexandra
A1  - Widder, Randolf Alexander
A1  - Alnawaiseh, Maged
A1  - Dietlein, Thomas Stefan
T1  - Conjunctival repair after glaucoma drainage device exposure using collagen-glycosaminoglycane matrices
JF  - BMC Ophthalmology
N2  - Background:
To report the results of the repair of conjunctival erosions resulting from glaucoma drainage device surgery using collagen-glycosaminoglycane matrices (CGM).

Methods:
Case series of 8 patients who underwent revision surgery due to conjunctival defects with exposed tubes through necrosis of the overlying scleral flap and conjunctiva after Baerveldt drainage device surgery. The defects were repaired by lateral displacement of the tube towards the sclera, with a slice of a CGM as a patch, covered by adjacent conjunctiva.

Result:
Successful, lasting closure (follow-up of 12 to 42 months) of the conjunctival defects was achieved without any side-effects or complications in all eight cases.

Conclusions:
Erosion of the drainage tube, creating buttonholes in the conjunctiva after implantation of glaucoma drainage devices, is a potentially serious problem. It can be managed successfully using a biodegradable CGM as a patch.
KW  - Ahmed
KW  - Baerveldt
KW  - biodegradable implant
KW  - collagen-glycosaminoglycane matrix (CGM)
KW  - conjunctival defect
KW  - episcleral drainage device
KW  - drainage tube
KW  - conjunctival repair
KW  - conjunctival hole
KW  - glaucoma drainage device
KW  - ologen implant
Y1  - 2018
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-175534
VL  - 18
IS  - 60
ER  -