Assessing number and quality of urology open access journals: 2011 to 2018.

Background/aims: There is clear evidence that publishing research in an open access (OA) journal or as an OA model is associated with higher impact, in terms of number of reads and citation rates. The development of OA journals and their quality are poorly studied in the field of urology. In this study, we aim to assess the number of OA journals, their quality in terms of CiteScore, percent cited and quartiles, and their scholarly production during the period from 2011 to 2018.

Perinatal events predicting retinopathy of prematurity in extremely pre-term infants.

Background: Extremely preterm infants are peculiar in regard to their risk of retinopathy of prematurity (ROP). In this study, we aim to study insults that may affect extremely preterm infants, including prenatal, at birth, and postnatal insults and their effect on the development of ROP.

Methods: This study used the data from Prematurity and Respiratory Outcomes Program (PROP).

Ocular Manifestations of Sickle Cell Disease: Signs, Symptoms and Complications.

Background: Sickle cell disease is an inherited hematological disorder that can affect any organ in the body including the eyes (1-6). Previous studies on ocular manifestations of sickle cell disease generally included samples of less than 100 patients. In this study, we aim to assess the frequency of different ocular signs, symptoms and complications among sickle cell disease patients.