Materials and Methods: Right eyes of 20 patients with coronary heart disease and 13 patients with thyroid disease as control were recruited in this study. Subjects were determined to be candidate by Cardiothoracic Surgery, General Surgery and Ophthalmology Departments. Standard achromatic perimetric (SAP) and Short-wavelength automated perimetric (SWAP) analyses were performed at preoperative and postoperative terms. Visual fi eld analyses were performed using Humphrey Visual Field Analyzer 750i with full threshold, Central 24?2 program.

Results: When the results of SWAP tests were analyzed in CPBS group, mean deviation (MD) at the postoperative term were more signifi cantly decrease than the preoperative term (p=0,027), but no signifi cant differences were not detected in SAP tests. There were signifi cant differences in PSD and CPSD values of TdS group at preoperative and postoperative term via SWAP tests (p=0,012, p= 0,026, respectively), but no signifi cant changes via SAP tests.

Conclusion: Localized decrease of retinal sensitivity was detected in patients with TdS. CABS may lead loss of generalized retinal sensitivity in a subclinical manner and SWAP can be valuable to determine these early and undetectable changes over SAP. Keywords : Coronary artery disease, coronary arter bypass surgery, thyroidectomy, standard achromatic perimetry, short?wavelength automated perimetry