Background and Objective: There are different methods to improve sperm parmeters including swim up.Sperm washing is a basic step in This method during 2007. It seems that two times washing cause bether result especially in high viscosity sample and sample it is not liqufy. The aim of this study is to compare the single and double washing swim up method on sperm parameters.

Materials and Methods: This study was carried out on 50 semen samples referred to Fatemeh-Alzahra infertility center of Babol University of Medical Sciences during 2007. Semen samples had the following characteristics: volume 2-5ml, count>20 million/ml, motility>50% and normal morphology>14%. Sampling condition were completely considered. Sperm parameter analysis carried out after two times washing. Data entered to SPSS-10 and analyzed by repeated measurement and paired T-Test and p-value<0.05 considered statistically significant.

Results: Semen volume mean was 4.050±1.006. Mean sperm motility in one and two times washings increased (P<0.05), but there was not statistically significant differences between one and two times washing. In grading analysis, by increasing the washing, grade III, IV increase and grade I decrease (P<0.05). Sperm morphology mean increased with washing but it is not statistically different between one and two times washing.

Conclusion: This study showed that swim up method is effective method for sperm preparation and two times washing cause recuperation of sperm parameters.

Background and Objective: Evaluating the agreement among various corneal imaging devices is crucial due to their varying technologies in diagnosing corneal parameters. This study aimed to assess the agreement of Advanced Corneal Explorer (ACE) with Pentacam and Orbscan in myopic individuals with healthy corneas.
Methods: This descriptive-analytical study was conducted on 45 myopic individuals (25 women and 20 men; mean age=30.37±6.13 years) referring to Al-Zahra Ophthalmology Hospital in Zahedan, Iran, during 2023. Anterior segment imaging was performed using three devices: ACE, Pentacam, and Orbscan. Corneal parameters, including topography, tomography, and corneal aberrations, were examined. The intraclass correlation coefficient (ICC) and 95% limits of agreement (LoA) were used to evaluate the agreement of ACE data with the data obtained from the other two devices.
Results: ACE exhibited good agreement with Pentacam for the mean power (ICC=0.97), maximum power (ICC=0.98), and minimum power of the anterior corneal surface (ICC=0.97) (P<0.05). Additionally, ACE exhibited good statistical agreement with Orbscan for the mean power of the anterior corneal surface due to an ICC of 0.98 (P<0.05). The ICC values for central corneal thickness and thinnest corneal thickness with the ACE and Pentacam devices were 0.99 and 0.95, respectively, indicating significant statistical agreement (P<0.05). White-to-white distance, pupil size, and corneal aberrations did not show good agreement among the three devices (ICC<0.75).
Conclusion: Topography values and corneal thickness measured with ACE showed good agreement with Pentacam; therefore, they can be used interchangeably. Other measured variables from ACE did not show good agreement with Pentacam and Orbscan and are not interchangeable.