Effects of an autostable bicanaliculus intubation stent in the management of acquired punctal stenosis

Autor: Mohamed Y Farag, Dikran Hovaghimian, Ahmed Taha Ismail, Olfat A. Hassanin
Rok vydání: 2014
Předmět:
Zdroj: Journal of the Egyptian Ophthalmological Society. 107:160
ISSN: 2090-0686
DOI: 10.4103/2090-0686.148128
Popis: Objectives To study the success rate of an autostable bicanaliculus intubation stent in the management of acquired punctal stenosis. Patients and methods Twenty-one eyes of 12 patients who underwent stent implantation using disposable sizers, from December 2012 till March 2013, were studied. In all patients, the superior and inferior puncti, with a 1 mm calibrated dilator supplied with the stent, was performed carefully to prevent damage to the ampulla; before the insertion of the stent, it was necessary to verify the absence of canalicular obstruction by probing and patency of the nasolacrimal duct by irrigation. An initial clinical examination indicated that tearing was not ocular in nature. For the management of acquired punctal stenosis and punctal obstruction, patients were evaluated retrospectively in terms of sex and age, the duration and severity of epiphora, associated blepharitis or trachoma, and the success of treatment. Stents were removed 2 months after insertion. Results Twenty-one eyes had punctal stenosis, causing epiphora. The mean age of the patients was 55 (±20) years. The mean interval between the onset of epiphora and stent implantation was 18.4 (±12.7) months. Associated chronic blepharitis was detected in four eyes and trachoma complication in three eyes. The patients were examined on the first day postoperatively, and at 1 week, 1 month, and 2 months. Success was achieved in 19 eyes (90%). We encountered four cases of minor conjunctival irritation that was resolved in 1 week and two cases of diminished palpebral fissure; in one case, we replaced the stent. Spontaneous stent loss was noted in five eyes between the 1-week and the 2-month follow-up. One patient had residual epiphora. Conclusion Autostable bicanaliculus intubation stent implantation is very effective for the treatment of acquired punctal stenosis and obstruction. However, careful punctum dilation should be performed and patients should be provided with proper instructions to wear protective eyeglasses following the procedure to decrease spontaneous stent extrusion.
Databáze: OpenAIRE