Computerised perimetry with moving and steady fixation in children

Area of Science:

• Ophthalmology
• Medical Technology
• Pediatric Eye Care

Background:

• Accurate detection of visual field defects like scotomas is crucial in pediatric ophthalmology.
• Traditional perimetry methods can be challenging for young children due to fixation difficulties.
• The computer assisted moving eye campimeter (CAMEC) utilizes an interactive moving target to enhance patient engagement and fixation.

Purpose of the Study:

• To compare the efficacy of CAMEC with the Dicon Auto-Perimeter in detecting the blind spot in children.
• To evaluate CAMEC's ability to detect and quantify scotomas in pediatric patients.

Main Methods:

• Thirty-two children underwent blind spot testing using both CAMEC and the Dicon Auto-Perimeter.
• Patient fixation was maintained using a joystick-controlled moving target in the CAMEC system.
• Detection rates and quantitative scores were compared between the two devices.

Main Results:

• CAMEC achieved 100% detection of the blind spot in pediatric eyes, compared to 75% for the Dicon Auto-Perimeter.
• The mean CAMEC score (61.0%) was significantly higher than the Dicon Auto-Perimeter score (26.6%).
• CAMEC demonstrated superior performance in detecting and quantifying scotomas in children aged four and above.

Conclusions:

• CAMEC is a highly effective tool for detecting the blind spot in children.
• The interactive nature of CAMEC improves fixation and diagnostic yield in pediatric visual field testing.
• CAMEC offers a significant advancement for pediatric ophthalmology in identifying and assessing scotomas.