At what is can most children begin to cooperate during a visual acuity and stereopsis screening?
A. As soon as they can sit up
B. 3 years
C. Six months
D. One year
From Google:
Stereoacuity of children aged 3 to 5 years (n = 2898) participating in the Vision in Preschoolers (VIP) Study was evaluated using the Stereo Smile II test during a comprehensive vision examination.
To determine at what age most children can begin to cooperate during a visual acuity and stereopsis screening, we need to consider the developmental milestones and abilities related to cooperation.
Visual acuity refers to the sharpness or clarity of vision, while stereopsis is the ability to perceive depth and perceive objects in three dimensions. Screening for visual acuity and stereopsis often involves the use of specialized tests or equipment.
At around six months of age, most infants have developed the motor skills and ability to sit up independently. However, their ability to cooperate during a visual acuity and stereopsis screening may still be limited at this age. They might not fully understand the purpose of the test or have the attention span required for cooperation.
Around one year of age, children usually start to develop better coordination and are gradually becoming more capable of following simple instructions. They may be able to comprehend the task of a visual acuity and stereopsis screening to some extent, making cooperation more likely at this stage.
By the age of three, most children have improved their communication skills and cognitive abilities, allowing them to understand and follow instructions more effectively. They can typically cooperate relatively well during a visual acuity and stereopsis screening.
Based on these considerations, the correct answer is:
B. 3 years