Purpose.The aim of this study was to a ssess visual per-ception at school age of children born preterm with known lesions to the posterior visual path ways or with ophthalmo-logic signs that might indicate such lesions.Methods.The study group consisted of 91patients born before the 37th gestational week.Visual perceptio n was assessed using the TVPS-R(Test of Visual Perceptual Skills-Re vised)and a structured interview.In addition,ophthalmologic and or-thoptic examinations were performe d.Results.On the test of visual perception,67%of the patients had results below the third percentile of the American reference group.This is to be compared with 10%of Swedish f ull-term controls.Scores below the third percentile we re observed in 87%of the patients with known brain lesion s,48%of those with strabismus without known brain lesion,and 86%of those with reduced visual acuity in the absence of strabismus and known brain lesion.Conclusions.Re duced visual percep-tion is common among children born pr eterm who have strabismus and /or reduced visual acuity,as well as in those with known brain lesions.This study emphasises the need to find tools to identify and ass ess those patients who have visual perceptual problems that may restrict their a-bility to meet the demands of daily li fe. Purpose.The aim of this study was to a ssess visual per-ception at school age of children born preterm with known lesions to the posterior visual path ways or with ophthalmo-logic signs that might indicate such lesions. Methods. The study group consisted of 91patients born before the 37th gestational week. Visual perceptio n was assessed using the TVPS-R (Test of Visual Perceptual Skills-Revised) and a structured interview. In addition, ophthalmologic and or-thoptic examinations were performe d. Results. On the test of visual perception, 67% of the patients had results below the third percentile of the American reference group. This is to be compared with 10% of Swedish f ull-term controls. Scores below the third percentile we re observed in 87% of the patients with known brain lesion s, 48% of those with strabismus without known brain lesion, and 86% of those with reduced visual acuity in the absence of strabismus and known brain lesion. Conclusions. Reduced visual perception is common among children b orn pr eterm who have strabismus and / or reduced visual acuity, as well as in with with known brain lesions. this study emphasises the need to find tools to identify and ass ess those patients who have visual perceptual problems that may restrict their a-bility to meet the demands of daily li fe.