The demand for anterior segment photography is considerably less than for retinal imaging, but this is an important technique for the documentation of anterior segment disease, and should be available in every advanced eye clinic.
Edgbaston Eye Clinic boasts one of the most advanced ocular Camera, the KOWA 3D Camera.
Visionix Imaging Device
Corneal Topography
Best practice management of keratoconus, including monitoring for disease progression, requires serial corneal tomography assessment. Corneal topography is also use for fitting of lenses, pre-op assessment for laser eye surgery.
At Edgbaston Eye Clinic, we specialise in fitting complex contact lenses and corneal topography is an invaluable tool to enable us achieve the best contact lens fit. We also use corneal topography to do pre-op laser assessment.
Overview
OCT uses interferometry to provide high resolution cross-sectional images of the cornea and anterior segment in a non-invasive manner. Anterior segment OCT is similar to posterior segment OCT although longer wavelengths light sources are more commonly used
Selected indications and requirements
The indications for anterior segment OCT are increasing rapidly and access to this modality is recommended for subspecialty eye clinics at tertiary referral centres. In glaucoma clinics, anterior segment OCT can be used for direct visualization of the anterior chamber angle, especially in patients with primary angle closure, and also for the diagnosis of patients with plateau iris configuration
In corneal and external disease clinics, it can be used to measure peripheral corneal thickness at multiple locations or the depth of anterior stromal corneal scarring useful for planning corneal transplantation surgery.
KOWA Imaging Technology
Many structures in the posterior segment possess innate fluorescent properties or “fundus autofluorescence” (FAF), that is, they fluoresce even in the absence of any exogenous contrast agent.
Blue-peak autofluorescence system (Heidelberg Engineering), with an excitation wavelength of 488nm. The Spectralis Heidelberg OCT has got one of the best autofluorescence module in all the imaging devices.
FAF imaging is an essential requirement for highly specialised retinal clinics. It plays a crucial role in the diagnosis and monitoring of patients with inherited retinal disease and in the assessment of patient with toxic retinopathies (e.g. hydroxychloroquine retinopathy).
It also has an emerging role in the diagnosis and monitoring of geographic atrophy in patients with “dry” AMD.
The latest OCT Imaging Device
OCT provides high-resolution images of the neurosensory retina in a non-invasive manner. OCT is analogous to ultrasonography, but measures light waves rather than sound waves.
Each OCT device incorporates image analysis software that provides measurement of retinal thickness via automated detection (“segmentation”) of the inner and outer retinal boundaries. Using these techniques, it is possible to measure retinal thickness at multiple locations and to construct retinal thickness maps corresponding to the Early Treatment of Diabetic Retinopathy Study (ETDRS) subfields.
Access to OCT imaging is an essential requirement for high quality eye care service. OCT imaging plays a central role in the detection, diagnosis, and long-term monitoring of nearly all posterior segment diseases. It also plays an important role in the assessment of unexplained visual loss in patients with normal biomicroscopic examination, particularly when combined with FAF imaging.
CT (Optical Coherence Tomography) has truly revolutionized eye care in the world
Edgbaston Eye Clinic is equipped with one of the most advanced OCT scanners
info@edgbastoneyeclinic.com
To schedule an appointment, please send us a message or give us a call during our business hours.
Sat Nav Users:
Please set your sat nav to
B15 3EB, which offers better parking.
Appointments Available
6 Days a Week
Mon- Fri: 8am-3pm
Sat: 7:30am-2:30pm
Sun: By Appointment only