Visual Function Screening System With Special Needs Children and Typical Preschoolers

Inclusion Criteria: * A. General Group 1. Inclusion Criteria General adults: 1. Aged over 18 and under 70 years 2. Willing to undergo assessment and video recording using the "Deep Visual Tracking System" 3. Willing to sign the informed consent form Typically developing preschool children aged 3 to 5: 1. Currently aged between 3 (inclusive) and 5 (inclusive) years 2. The primary caregiver agrees to allow the child to undergo assessment and video recording using the "Deep Visual Tracking System" Children under 3 years old: 1. Currently under 3 years of age 2. The primary caregiver agrees to allow the child to undergo assessment and video recording using the "Deep Visual Tracking System" 2\. Exclusion Criteria General adults: 1. Presence of severe corneal disease or cataract that may interfere with data collection 2. Obvious abnormalities in eye or facial appearance, such as ptosis or facial trauma affecting facial structure Typically developing preschool children aged 3 to 5: 1. Children with physical or mental disabilities 2. Children diagnosed with or suspected of having developmental delay 3. Children with obvious abnormalities in eye or facial appearance Children under 3 years old: (1) Children with physical or mental disabilities (2) Children diagnosed with or suspected of having developmental delay (3) Children with obvious abnormalities in eye or facial appearance \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_ B. Special Needs Group 1. Inclusion Criteria (1) Children under the age of 12 with special needs, including physical, mental, or multiple disabilities (2) The primary caregiver agrees to allow the child to undergo assessment and video recording using the "Deep Visual Tracking System" 2. Exclusion Criteria (1) Children with refractive errors that are diagnosed by an ophthalmologist to significantly impair vision and are unable to wear corrective glasses during assessment (2) Children who are physiologically or emotionally unstable and unable to adapt and complete at least two assessment sessions B. Special Needs Group 1. Inclusion Criteria (1) Children under the age of 12 with special needs, including physical, mental, or multiple disabilities (2) The primary caregiver agrees to allow the child to undergo assessment and video recording using the "Deep Visual Tracking System" Exclusion Criteria: * A. General Group 2. Exclusion Criteria General adults: 1. Presence of severe corneal disease or cataract that may interfere with data collection 2. Obvious abnormalities in eye or facial appearance, such as ptosis or facial trauma affecting facial structure Typically developing preschool children aged 3 to 5: 1. Children with physical or mental disabilities 2. Children diagnosed with or suspected of having developmental delay 3. Children with obvious abnormalities in eye or facial appearance Children under 3 years old: 1. Children with physical or mental disabilities 2. Children diagnosed with or suspected of having developmental delay 3. Children with obvious abnormalities in eye or facial appearance B. Special Needs Group 2. Exclusion Criteria 1. Children with refractive errors that are diagnosed by an ophthalmologist to significantly impair vision and are unable to wear corrective glasses during assessment 2. Children who are physiologically or emotionally unstable and unable to adapt and complete at least two assessment sessions