This module develops knowledge relating to the investigation of orthoptic patients within clinical practice. During this module, practical skills introduced in semester one will be recapped and then developed with additional skills relating to accommodative/convergence anomalies and refractive errors being introduced. Ultimately the module will equip the student with the theoretical knowledge and practical skills to enable them to investigate all types of concomitant strabismus, accommodative anomalies and refractive corrections. In order to develop and introduce these themes, the module will be delivered through a range of synchronous and asynchronous online lectures, online tutorials and clinical skills sessions. The sessions will not only introduce the students to the topic but also allow them to begin to start putting their theoretical knowledge in to practice. The module will be assessed via a two hour written examination, a 30 minute practical examination, clinical placement and a clinical portfolio.