Module code: OPT4002-B
To provide students with a fundamental understanding of the principles underlying refraction and associated visual assessment. To develop an understanding of the effect of ametropia on unaided vision and to understand how this interacts with patient age and accommodation. To develop the ability to apply basic practical skills in refraction and visual assessment.
Lectures: Introduction & Spherical ametropia. Retinoscopy. Astigmatism. Retinoscopy on a patient. Distance visual acuity measurements. Subjective monocular refraction: best vision sphere. Interpupillary distance. Jackson crossed-cylinder. Fan and Block. Clinical Accommodation. Auto refractors. Measuring single vision lens power (e.g. focimetry). Development of refractive errors. Introduction to the Cover Test. Refractive Surgeries.
Practical Clinical Sessions: Lab orientation. Model eye retinoscopy. Retinoscopy, visual acuity and mean sphere subjective. Interpupillary distance. Retinoscopy, visual acuity, mean sphere and Jackson cross-cyl. Retinoscopy, visual acuity, mean sphere and Fan & Block. Accommodation. Putting it all together.
The clinical portfolio is a completed portfolio of evidence of clinical experience and skills, to include practical examinations in retinoscopy and subjective refraction, logbook completion/submission, eye clinic attendance and reflection in semesters 1 and 2, model-eye work. Although this element does not contribute to the final mark for this module, this element must be passed.