Certified Ophthalmic Medical Technologist (COMT) Practice Exam

Which two tests are commonly used for preschool visual acuity testing?

1. LogMAR and Snellen

2. HOTV and Lea

3. Teller and Pelli-Robson

4. Bailey-Lovie and ETDRS

The correct answer is: HOTV and Lea

The selection of HOTV and Lea as the correct choices for preschool visual acuity testing is grounded in their specific design to accommodate the unique needs of young children. These tests utilize symbols rather than letters to help mitigate the challenges preschoolers face with standard letter recognition. HOTV employs a set of letters—H, O, T, and V—presented in a way that is easy for children to identify as they are often familiar with these shapes. This method allows for straightforward testing since the child only has to identify a selection of letters. Lea symbols consist of simple shapes (like a circle, house, apple, and square) that are intuitive and recognizable to young children, making it easier for them to engage with the test. Both of these testing methods are designed to assess visual acuity in an age-appropriate manner, ensuring accuracy and reliability. In contrast, other tests like LogMAR and Snellen utilize standardized letters and are better suited for older children and adults who have developed letter recognition skills. Teller and Pelli-Robson tests are primarily used for different populations, such as infants or those with special needs, and do not match the specific requirements of typical preschool visual acuity testing. Similarly, Bailey-Lovie and ETDRS