Objective To investigate the minimally surgical procedure for simple rhegmatogenous retinal detachment(RRD). Methods A total of 82 RRD patients (82eyes) with newonset

single hole or split holes

located within small area

from September 2015 to January 2018 in our hospital were randomly divided into three groups：the patients in group A were treated with scleral buckling;the patients in group B were treated with sterile air intravitreal injection after laser photocoagulation；the patients in group C were treated with sterile air intravitreal injection with scleral cryotherapy.Best correct visual acuity(BCVA)

diopter

intraocular pressure(IOP)

retinal reattachment ratio

preoperative anterior segment inflammation and postoperative anterior segment inflammation were observed. Results Compared with preoperative

the BCVA and Diopter were improved in different degree of 3 groups

the differences were significant(P<0.05)

the IOP had no obvious difference.The postoperative BCVA

Diopter and IOP of the 3 groups were compared

the differences were not signifcant(P＞0.05).The anterior segment inflammation of group A and group C were serious

there were statistically significant differences between the 3 groups(P=0.000).The retinal reattachment ratio in 3 groups were all over 90% within 2 weeks.All patients were followed up at 2 weeks

1 months

3 months

6 months and 1 years

expect 2 patients in group B with recurrent retinal detachment or retinal detachment was not reset received scleral buckling surgery and succeeded in 1 month after operation

no recurrence of retinal detachment nor serious complications occurred in the other patients. Conclusion Retinal photocoagulation or cryotherapy

combined with intravitreal injection of sterile air is a minimal invasive treatment for the fresh retinal detachment and superior RRD

however

the indications should be identified.