Backgroud: Phacoemulsification with trifocal intraocular lens helps patients achieve clear vision at all distances, reponding their needs and desires. Therefore, we have studied to evaluate the effectiveness of a trifocal intraocular lens. Objectives: (1) To describe the clinical features of cataract patients. (2) To evaluate the outcomes of cataract treatment by phacoemulsification with a trifocal intraocular lens. Methods: A prospective interventional clinical study was conducted on 80 eyes of 68 cataract patients who underwent phacoemulsification with a trifocal intraocular lens at the Ophthalmology Center, Hue Central Hospital. Results: At the 3-month postoperative period, 65.0% of the operated eyes had distance vision of 20/25 or better, 52.5% had intermediate vision of 20/25 or better, and 57.5% had near vision of 20/25 or better. The patient satisfaction rate was 91.2%. Conclusion: Phacoemulsification with a trifocal intraocular lens provides high effectiveness in terms of visual acuity and patient satisfaction.

Objective: Female sex workers (FSWs) are at high risk of human papillomavirus (HPV) infections and cervical cancer due to their high number of sexual partners. The objectives of this study were to determine the prevalence of HPV and identify risk factors for high-risk HPV infection among FSWs in Hanoi and Ho Chi Minh City (HCMC), Viet Nam. Methods: A cross-sectional study was conducted in Hanoi and HCMC between December 2017 and May 2018. We surveyed and screened 699 FSWs aged ≥18 years for HPV infection and abnormal cytology. A multivariable modified Cox regression model was used to determine risk factors for high-risk HPV infection. Results The overall prevalence of any HPV, high-risk HPV and HPV-16/18 infection in the 699 FSWs was 26.3%, 17.6% and 4.0%, respectively, and were similar in both cities. Multiple infections were identified in 127 participants (69.0%).HPV-52 was the most prevalent (7%), followed by HPV-58 (6%). Abnormal cytology was detected in 91 participants (13.0%). FSWs who are divorced (adjusted prevalence ratio [aPR]: 1.96, 95% confidence interval [CI]: 1.01–3.81), widowed (aPR: 3.26, 95% CI: 1.49–7.12) or living alone (aPR: 1.85, 95% CI: 1.01–3.39) were associated with a higher prevalence of high-risk HPV infection.