Repeatability of Corneal Thickness and Corneal Volume with Pentacam after Clear Cornea Phacoemulsification

黄锦海   温岱宗   王勤美   俞阿勇   陈世豪

温州医学院附属眼视光医院   325027

Objective：To investigate the repeatability for corneal thickness and corneal volume evaluated with Pentacam rotating Scheimpflug camera after clear cornea Phacoemulsification.

Method:Thirty two eyes of 32 subjects who had undergone clear cornea Phacoemulsification were assessed with the Pentacam.The mean of 3 consecutive measurements of corneal thickness and corneal volume was recorded.The repeatability was evaluated using intraclass correlation coefficients(ICC)and Cronbach's alpha.

Results:The central，diameter 2mm，diameter 4mm，diameter 6mm and diameter 8mm corneal thickness had a ICC of 98.4%，98.5%，98.2%，97.5%and 95.2%respectively.The ICC for diameter 3mm，diameter 5mm and diameter 7mm corneal volume was 97.9%，98.3%and 98.5%respectively.All the Cronbach's alphas were more than 99.0%.

Conclusion:Pentacam has a high degree of reliability for the corneal thickness and corneal volume after clear cornea Phacoemulsification.The Phacoemulsification did not affect the postoperative repeatability of the pachymeters.