Early detection of vision problems during the critical developmental window could prevent lifelong visual impairments that affect academic performance and quality of life. When children's visual systems are still developing, untreated refractive errors and amblyopia can lead to permanent vision loss that becomes irreversible after age 8-9. The South Australian screening program revealed that nearly one in six children aged 7-9 had undiagnosed vision disorders requiring clinical intervention. Among 159 children tested across 15 schools, comprehensive eye examinations confirmed vision problems in 17% of participants, with significant refractive errors affecting 16.4% and suspected amblyopia in 2.5%. The screening protocol combined distance visual acuity testing with photorefraction technology to identify children needing further evaluation. This detection rate aligns with global estimates suggesting 15-20% of school-age children have undiagnosed vision problems. However, the study's modest sample size and focus on a single geographic region limits broader generalizability. The timing is particularly significant as children enter more demanding academic phases requiring sustained visual attention for reading and writing. Current pediatric vision screening practices vary widely in methodology and referral criteria, creating gaps where treatable conditions go undetected. This standardized approach demonstrates how systematic school-based programs can identify children who might otherwise reach adulthood with preventable vision impairments, though larger multi-site validation studies would strengthen the evidence base for widespread implementation.