However, tractional retinal detachments are the leading cause of blindness and permanent impairment in diabetes. It is the leading cause of decreased visual acuity in diabetes. Macular edema is a potential consequence of diabetic retinopathy. This can be repaired by surgery with a vitreo-retinal specialist, although vision is typically still reduced to some degree afterwards. Peripheral vision remains intact, but peripheral vision is just not sensitive to perform visually demanding tasks. Macular holes can be devastating to central vision. When it does release the vision may return to near normal levels, or in some cases it will proceed to the formation of a macular hole (See photo below). This will cause decreased/distorted vision until it releases. Typically there is a clean separation of the vitreous membrane and the retina at the time of PVD, but in this photo above there has remained an area of persistent vitreo-macular traction (VMT). These symptoms can mimic retinal tear and/or detachment, so a prompt appointment is recommended if ever encountered, in order to rule out those conditions. This posterior vitreous detachment (PVD) is a common cause of new floaters or flashes of light. The deepest layer of the retina, the retinal pigmented epithelium (RPE) is smooth and even (orange band).Īs people age, the vitreous gel often eventually pulls away from the retina. The normal macula is flat but with a slight dip at very center (known as the fovea). It is particularly useful in the diagnosis and management of eye conditions such as vitreo-macular traction, macular hole, diabetic macular edema, age-related macular degeneration, epiretinal membrane, and glaucoma. The OCT scan allows micro-structures of the eye to be imaged and shows different color-coded layers of the retina. OCT was chosen as the most efficient way to support clinicians in the assessment clinics, and to see if the addition of this step added value to the patient consultation and pre-operative assessment.Optical Coherence Tomography (OCT) is an imaging technique that provides unprecedented high resolution and cross-sectional images of the eye. In this study we sought to investigate the prevalence of retinal pathology in the patient cohort, the comparison of subjective clinical slit lamp fundoscopy assessmenet with OCT findings and the co-incidental OCT findings in the fellow eye at the time of cataract assessment. There may still be reluctance to use OCT in a normal cataract assessment clinic as it may be perceived as an additional step that decreases time efficiency and increase financial investment in the services. Optical coherence tomography (OCT) has been widely present in ophthalmology clinics since it's development 20 years ago although it is not commonly used in all units for the pre-operative assessment of patients referred for cataract surgery in high volume set ups such as the National Health Service (NHS) in the United Kingdom. There is also a degree of subjectivity from how much the cataract impairs the vision in comparison to the other elements of the optical pathway within the eye, and whilst there is no single way to evaluate this. The majority of anterior segment pathology may be diagnosed with simple slit lamp biomicroscopy, but posterior segment pathology may not be quite so obvious and can be missed on simple examination especially if a visually significant cataract is present impeding the view. Why Should I Register and Submit Results?.
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