Clinical assessment of visual functions in infants and young children

Yonghong Jiao

Objective: To evaluate the feasibility and reliability of visual assessment system on infants.

Methods: To test 85 infants from 4 months to 48 months with children's graphic visual acuity chart and Teller visual acuity cards (47 cases of refractive errors, 25 cases of congenital cataract, 2 cases of congenital ptosis, 8 cases of esotropia, and 3 cases of speech disorder), and analysis the results.

Results: Children's graphic visual acuity chart :0.1-0.2, 17 eyes (14.41%); 0.3-0.5,76 eyes (64.40%); 0.6, 25 eyes (21.19%); Teller visual acuity cards 55 cm measured> 19cy/cm 3 eyes(5.77%); 4.8-9.8 cy / cm 22 eyes(42.31%); 1.3-3.2 cy / cm 20 eyes (38.47%); 0.86 cy/cm7 eyes (13.47%).

Conclusion: Crowded HOTV letter acuity is better for children more than 2 years old with more vision, and TAC grating acuity is better for very young children with low vision or speech disorder. Visual acuity assessment system on infants can observe the visual development of 0~2-year-old children. Compared to conventional test, it can find abnormal low vision earlier. Early intervention and treatment programs can be developed for congenital eye disorders in infants with low vision.