Modified surgical epikeratoplasty for keratoglobus: anatomic and visual findings

Keratoglobus is a controversial issue and still remains as one of the ambiguous corneal disorders; it can be managed by different surgical techniques successfully; yet the risk of globe rupture is high in these patients due to corneal weakness. In cases of progressive involvement, a large corneal graft is needed due to extreme thinness of the cornea. Recent adventures in surgical techniques have led to the introduction of new managements particularly in Keratoglobus treatment such as the "tuck procedure" in which a 12 mm corneo-scleral graft is miniaturized at its peripheral margin. A pocket is formed at the limbus of the recipient and the donor graft is "tucked" into it. We present a case of epikeratoplasty in Keratoglobus management. A 45-year-old man with no history of a systemic disease underwent epikeratoplasty with the diagnosis of advanced bilateral keratoglobus since three years and six months before in the left and right eye, respectively. Pachymetry and best-corrected visual acuity [BCVA] were recorded before and six months after surgery. The highest recorded BCVA was 5/200 before the operation, whereas it was measured 6/10 [left eye] and 4/10 [right eye] at six-month follow-up examinations. Pachymetric findings improved from 244 to 773 and 212 to 744 [thinnest points] in the left and right eyes, respectively. Epikeratoplasty is a relatively safe, effective and reversible extraoccular procedure in the management of keratoglobus. It can also be performed to flatten the cornea and protect it against acute corneal hydrops and perforation.

simple way to clear the media for vitrectomy in eyes with corneal edema

Herein we introduce a simple approach for clearing an edematous cornea during vitreoretinal surgery in eyes with decompensated corneal endothelium, allowing the surgeon to postpone penetrating keratoplasty. This technique was performed in 3 eyes by filling the anterior chambers with air or silicone oil, and sufficiently cleared the media for completion of vitrectomy. This simple technique enables completion of the vitrectomy without a temporary keratoprosthesis and penetrating keratoplasty in eyes with corneal edema due to endothelial decompensation

Non-endoscopic mechanical endonasal dacryocystorhinostomy

To circumvent the disadvantages of endoscopic dacryocystorhinostomy such as small rhinostomy size, high failure rate and expensive equipment, we hereby introduce a modified technique of non-endoscopic mechanical endonasal dacryocystorhinostomy [NE-MEDCR]. Surgery is performed under general anesthesia with local decongestion of the nasal mucosa. A 20-gauge vitrectomy light probe is introduced through the upper canaliculus until it touches the bony medial wall of the lacrimal sac. While directly viewing the transilluminated target area, a nasal speculum with a fiber optic light carrier is inserted. An incision is made vertically or in a curvilinear fashion on the nasal mucosa in the lacrimal sac down to the bone using a Freer periosteum elevator. Approximately 1 to 1.5 cm of nasal mucosa is removed with Blakesley forceps. Using a lacrimal punch, the thick bone of the frontal process of the maxilla is removed and the inferior half of the sac is uncovered. The lacrimal sac is tented into the surgical site with the light probe and its medial wall is incised using a 3.2 mm keratome and then excised using the Blakesley forceps. The procedure is completed by silicone intubation. The NE-MEDCR technique does not require expensive instrumentation and is feasible in any standard ophthalmic surgical setting