Ultra-wide field imaging system and traditional retinal examinations for screening fundus changes after cataract suraery

AIM：To compare the results of non-mydriatic ultra-wide field imaging system,mydriatic slit-lamp lens（Volk＋90 D） and mydriatic Goldmann three-mirror contact lens examinations in screening fundus lesions among patients after cataract surgery.METHODS：Non-mydriatic images were obtained with an Optomap panoramic 200Tx（Optomap 200Tx） 3d after surgery and graded by a blinded ophthalmologist.A mydriatic slit-lamp lens examination was performed by another blinded retinal specialist on the same day.A third blinded retinal specialist examined patients two weeks after surgery using a Goldmann three-mirror contact lens.RESULTS：In total,160 patients（184 eyes） were examined,and 66,69,and 75 cases of retinal lesion（s）were identified using the Optomap 200 Tx,slit-lamp lens,and Goldmann three-mirror contact lens,respectively.In13 cases,fundus changes were sight-threatening.The results obtained by Optomap 200 Tx examination and by mydriatic slit-lamp lens examination have good consistency（P =0.375,Kappa =0.942）.The mydriatic Goldmann three-mirror lens examination revealed more fundus lesions but are consistent with Optomap 200Tx（P=0.004,Kappa =0.897） and mydriatic slit-lamp lens examination（P=0.031,Kappa=0.932）.CONCLUSION：Early post-operative fundus screening in cataract patients is extremely important and necessary to prevent further vision loss.Wide-field imaging is a feasible and convenient tool for fundus examination that can be used as a primary screening method among patients after cataract surgery.