Diabetes mellitus is characterized by sustained elevation of blood sugar, which is the main body energy source derived from the food we eat. In Nigeria, diabetic management revolves around blood glucose control and less attention is given to eye care. The aim of the present study was to establish the relationship between Intra Ocular Pressure and Body Mass Index of Diabetics attending a Diabetes Care Centre in Port Harcourt. The Intra Ocular Pressure of the subjects was determined. Body Mass Index, was also determined. Fasting blood glucose was measured. Uncontrolled blood sugar for males were 30(53.6%), females, 23(52.3%). The relationship between fasting blood glucose and gender was not statistically significant (P<0.00). Most subjects were in over weight category (46%), normal (26%), obese (28%) and underweight (1%). 87% of the subjects had normal intra ocular pressure, 9% elevated intra ocular pressure and 4% had pathological condition. No association existed between Intra Ocular Pressure and Body Mass Index. This occurred because; most of the subjects had their blood sugar level under control. More diabetic care centres should be established and equipped by the government to care, educate and manage diabetic patients, thereby preventing them from developing visual impairment and blindness.