Accuracy and sensitivity of the dynamic ocular thermography and inter-subjects ocular surface temperature (OST) in Chinese young adults.

Purpose: To investigate the accuracy and sensitivity of the Thermo-Tracer TH9100MV, NEC San-ei in monitoring the temperature of the anterior eye surface and to establish an inter-subjects ocular surface temperature (OST) norm in Chinese young adults.

Methods: A blackbody with fixed temperature was used to study accuracy and sensitivity of the thermal camera used (Thermo-Tracer TH9100MV, NEC San-ei). Sixty healthy Chinese young adults aged 17-21 (mean age 19) were recruited from the Singapore Polytechnic Optometry Centre.

Efficacy of measuring visual performance of LASIK patients under photopic and mesopic conditions.

Introduction: The aim of the study was to compare the visual performance of LASIK eyes measured using high-contrast logMAR letter charts under bright (photopic) and dim (mesopic) conditions.

Materials And Methods: A total of 46 subjects (35 +/- 8 years of age) undergoing LASIK procedures were recruited for the study. The best spectacle-corrected visual acuity (BSCVA) of each subject was measured using the high-contrast ETDRS logMAR chart under photopic and mesopic conditions at 3 visits: preoperative (Pre), 1 month postoperative (Post1) and 3 months postoperative (Post3).