Observation on the thickness changes of macular and choroidal after phacoemulsification on diabetic cataract

Abstract

Objective To observe the changes of central foveal thickness(CFT) and subfoveal choroidal thickness(SFCT)after phacoemulsification and IOL implantation on patients with cataract and type 2 diabetic. Methods The data of 45 cases of phacoemulsification and IOL implantation in diabetic cataract were analysed retrospectively. The age range of patients was 48-72 years, average (65.0±5.7) years. The fundus of all cases were in non-proliferative diabetic retinopathy or without diabetic retinopathy, operated eye and another eye were defined for observe group and control group. The best corrected visual acuity (BCVA), CFT and SFCT by OCT at 1 week before and l week, 1 month and 3 months after operation were recorded. Results The difference between postoperative CFT of control group and preoperative CFT of observe group was not statistically significant (P>0.05). The difference of CFT at 1 week, 1 month and 3 months after operation between two groups were significant (all P 0.05) .The difference in SFCT at 1 week and 1 month after surgery were statistically significant between two groups.However, the difference at 3 months after surgery was not statistically significant between two groups. Conclusion After phacoemulsification and IOL implantation surgery in patients with type 2 diabetic without diabetic retinopathy or non-proliferative diabetic retinopathy, CFT and SFCT are increased obviously at 1 month after surgery. Key words: Central foveal thickness; Subfoveal choroidal thickness; Optical coherence tomography; Phacoemulsification surgery; Diabetic, type 2