Regular comprehensive eye exams include checking your glasses prescription and assessing the ocular health of your eye with a dilated exam. Your Optometrist is able to use the latest imaging technology to better assess your eye health, allowing them to see different aspects of the eye and to document the current ocular condition at different points in time. All imaging are non-invasive and allows your eye doctor to view your ocular health in more depth. Such technology includes topography, anterior segment photos, and posterior segment photos.
Topography is an imaging technique that measures the curvature of the cornea (clear part of the eye). This technique displays a three-dimensional map showing whether the cornea has an irregular shape. A smooth corneal curvature is necessary to maintain clear vision, if there are any distortions to this smooth surface, decreased vision could occur. Diseases that can be diagnosed or monitored with topography include keratoconus, pellucid marginal degeneration, irregular astigmatism, corneal deformities, corneal scars, and ocular surface disease like dry eye.
Anterior Segment Photos are images of the front surface of the eye. This includes the eyelids, cornea, and conjunctiva (white part of eye). This imaging is important to monitor various ocular conditions and ensure that no growth has occurred. Such conditions could be benign such as nevus on the eyelid (pigmented lesion) or melanosis (hyperpigmentation). Additionally, anterior segment photos are useful for monitoring more severe conditions such as corneal ulcers to help ensure the lesion is healing with each visit.
Posterior Segment Photos are images of the retina (back portion of the eye). The retina is another part of the eye essential for vision. This portion of the eye is a common location for many manifestations of diseases. Posterior segment photos can help monitor disease processes and help identify if progression has occurred. Such diseases include diabetic retinopathy, age related macular degeneration, and maculopathy caused by systemic medications.