RESUMO
Objective To evaluate clinical application of irrigating solution of conjunctival sac be-fore intraocular surgery,which can clean the conjunctival sac with low irritability and low environmental pollution. Methods Patients (210 cases) without systemic inflammatory response and with expected in-traocular surgery were divided into three groups randomly (70 cases in each group). Group A used normal saline(200 ml). Group B used the mixed solution of 0.02% mercury bichloride(100 ml) and normal saline(100 ml). Group C used the mixed solution of 0.4% gentamicin (100 ml) and normal saline (100 ml).The specimens of conjunctival sac were collected and sent to check before and after irrigating.In 15 and 30 min-utes after irrigating,the conjunctival congestions of three groups were compared. Results There was no statistical difference in bacterial positive rate among three groups before and after irrigating:, bacterial posi-tive rate was 62.86% in group A, 54.29% in group B, 50.00% in group C before irrigating; 31.43% in group A, 27.14% in group B, 20.00% in group C after irrigating. There were statistical difference in bacterial cul-ture of conjunctival sac among three groups before and after irrigating (P< 0.05). The comparison of con- junctival congestion: group B had the most serious irritation, group C was median, group A had lightest irri-tation. Conclusions Normal saline as irrigating solution of conjunctival sac for intmecular surgery can reduce chemical irritation and toxicity by reducing use of antibiotics. It can supply clear visual operativefield for doctors so it can substitute traditional irrigating solution of conjunctival sac.