As a chronic eye disease caused by multiple factors, the treatment of dry eye disease (DED) should be individualized according to the cause and severity of the disease.In patients with severe DED who have lost lacrimal secretion but have not suffered severe damage to the salivary glands, autologous salivary gland transplantation may help bring hope to these patients if conventional treatments are not effective enough.According to the literature, the three major salivary glands and the minor salivary glands have been used as lacrimal gland replacements.Studies have shown that submandibular glands not only have a high gland survival rate after transplantation, but also maintain secretory activity after transplantation and therefore successfully serve as lacrimal gland replacement.During the up to 180-month follow-up period, the subjective symptoms and signs of DED such as dryness, foreign body sensation, and other objective indicators related to DED such as visual acuity and tear film break-up time are effectively improved.Among the minor salivary glands, the labial glands have been proven to maintain secretory function during the up to ten-year follow-up period after transplantation according to the literature, and have therefore become an alternative lacrimal gland replacement.This review summarized the indications, surgical techniques, efficacy evaluation, modulation of salivary flow and complications of the surgery, involving three major salivary glands, parotid, submandibular and sublingual glands, and minor salivary glands among which labial glands are most commonly used.

Objective: To explore the indoor air quality of Harbin and its suburbs, and analyze the influence of indoor air quality on the pulmonary function indexes of schoolchildren, and to provide a reference for preventing the related respiratory diseases. Methods: The concentration of CO 2, formaldehyde, benzene, PM 10 and total bacterial count in indoor of 80 residents in Harbin and its suburb were monitored. The IAAH model was used to evaluate the indoor air quality, and the correlation between the indoor air quality and the pulmonary function indexes of schoolchildren was analyzed. Results: The levels of indoor air pollutant in suburb was higher than that in the urban of Harbin, and the concentration of CO 2, PM 10 and total bacteria count in the suburb of Harbin increase significantly during the heating season(t=5.86，4.92，21.16, P<0.05). Among the 40 households monitored by IAAH model in suburb during heating season, 37.5% had moderate air pollution, and 20.0% had severe air pollution. The IAAH was correlated with FVC, FEF75% and FEF25% after excluding the confounding factors by multiple linear regression(β=-0.17, -0.34, -0.43, P<0.05). Conclusion Indoor air pollution is very serious in the suburb of Harbin during heating season, which should be paid attention to by parents to prevent related respiratory diseases of schoolchildren.