方法：选取过敏性结膜炎患者154例158眼，随机分为两组。对照组患者单纯给予氯雷他定片治疗，观察组患者在对照组基础上加用双氯芬酸钠滴眼液进行治疗。对两组患者症状和体征积分进行比较，并对治疗效果进行评价并比较。

结果：治疗前，两组患者患眼症状积分和体征积分无统计学差异(P>0.05)。经过治疗，观察组患眼眼痒、流泪、畏光、烧灼感以及异物感积分分别为1.03±0.10、0.83±0.10、0.62±0.06、0.80±0.05和1.10±0.09分，结膜充血水肿、分泌物、睑结膜乳头滤泡、角膜缘改变、角膜上皮改变以及眼睑和球周组织水肿得分分别为0.95±0.08、0.63±0.05、1.32±0.13、0.67±0.06、0.72±0.06和0.55±0.04分，均明显低于对照组，两组比较差异有统计学意义(P<0.05)。对照组患者患眼显效、总有效率分别为30.4%和68.4%； 观察组分别为50.6%和86.1%，观察组患者患眼显效率和总有效率均明显高于对照组，两组患眼比较差异有统计学意义(P<0.05)。

结论：在全身使用氯雷他定的基础上给予双氯芬酸钠眼液点眼，可以更好地缓解过敏性结膜炎患者的临床症状和体征，提高治疗效果，而且给药方便，是一种有效的治疗方案。

METHODS: The selected 154 patients(158 eyes)with allergic conjunctivitis were randomly divided into control group and observation group, 77 patients(79 eyes )in each group. Patients in control group were treated with loratadine. Patients in observation group were treated with diclofenac sodium eye drops besides loratadine. Scores on symptoms and physical signs of two groups were compared and clinical efficacy of two group was evaluated and compared.

RESULTS: Before treatments, the scores on symptoms and physical signs of two groups were not significantly different(P>0.05). After treatments,the scores of observation group on eye itching, tearing, photophobia, burning sensation and foreign body sensation were respectively 1.03±0.10, 0.83±0.10, 0.62±0.06, 0.80±0.05 and 1.10±0.09score. The scores on conjunctival congestion and edema, secretions, nipple-like follicular on palpebral conjunctiva, limbus change, corneal epithelial changes as well as eyelid and periocular edema of observation group were respectively 0.95±0.08,0.63±0.05,1.32±0.13,0.67±0.06,0.72±0.06, 0.55±0.04score.All the aspects mentioned above were lower in observation group than in control group and the differences were statistically significant(P<0.05). The effective rate and total effective rate of control group were 30.48% and 68.4% respectively, those of observation group were 50.6% and 86.1%, the differences of the two groups were statistically significant(P<0.05).

CONCLUSION: Systemic treatment of loratadine combined with local treatment of diclofenac sodium eye drops for allergic conjunctivitis can relieve the clinical signs and symptoms better, make the treatment more effective with easy drug administration, which is an effective treatment.