of dual fluorescein and ICG inflammatory angiographic signs for the grading of posterior segment inflammation (dual fluorescein and ICG angiographic scoring system for uveitis). Int Ophthalmol. 2010; 30: 539–552 14. Chylack LT Jr, Wolfe JK, Singer DM, Leske MC, Bullimore MA, Bailey IL, et al. The Lens Opacitates Classification Sistem III. The Longitudinal Study of Cataract Study Group. Arch Ophtalmol 1993;111:831-6. 15. Lafranco Dafflon M, Tran VT, Guex/Crosier Y, Herbot CP. Posterior sub-Tenon’s steroid injections for the treatment of posterior ocular inflammation
1 Introduction The advantages of regional anaesthesia over general anaesthesia in terms of safety, efficacy, and patient satisfaction are well known. In ophthalmic surgery, regional anaesthesia techniques usually utilized for day case surgery include peribulbar, retrobulbar and sub-Tenon’s block [ 1 , 2 ]. During the procedure, profound akinesia of the eye and anaesthesia of the surgical site are required, both of which are achieved with a retrobulbar block. Injection of 2 to 4 mL of anaesthetic solution is usually made between the extraocular muscles [ 3 ]. Due
main aqueous outflow into
subconjunctival venous plexus, are studied in this paper.
Possible additional outflow paths through the ostia of
Schlemm’s canal w27x and an outflow into the episcleral
veins through sub-Tenon’s space, which are present in
other glaucoma filtration surgeries w8, 19, 20, 27, 29x are
demonstrated in Figures 3 and 4 (light grey arrows), but
were not taken into account in detail here.
Summing up on the basis of clinical studies w7, 10, 17,
31x, postoperative aqueous outflow from the anterior
chamber was assumed through the main pathways