Fundus photos are similar to digital retinal images, but they usually require pupil dilation beforehand.

Two different scans - an “A-scan” and “B-scan” - can be used to get different information about the retina and other tissues inside the eye.įundus photographs. They can be particularly useful when there is bleeding inside the eye, which can make it difficult for an eye doctor to spot the signs of retinal detachment, retinal tears or other retinal conditions. Ultrasounds use “silent” sound waves to get a real-time view of the inside of your eye. These tests are usually performed by an ophthalmologist, or more specifically, a retinal specialist. While basic digital imaging is used for the everyday patient, other retinal tests are more specialized for diagnosing and monitoring specific eye conditions. There are many ways an eye doctor can examine your retina. In our nationwide eye exam cost survey, we found that eye doctors charged an average of $33 for a digital retinal test. Some eye care professionals bundle digital retinal imaging into the overall fee for a comprehensive eye exam, but it’s more likely to be billed separately. One of the most common retinal screening devices is Optos’ optomap, which offers a 200-degree view of the retina. They also offer a wider field of view - about four to five times that provided by standard viewing instruments that require a dilated pupil. While dilation is still a common procedure, digital retina screenings offer an alternative without the extreme light sensitivity and blurry vision that can follow pupil dilation for several hours. In many cases, digital retinal imaging lets you bypass pupil dilation. In the past, an eye doctor would need to use special eye drops to dilate (enlarge) your pupils to get a wider view of the back of your eye. The process is quick and painless, and doesn’t have any side effects. Included in the image is a detailed view of the retina, optic nerve and retinal blood vessels, all of which can show signs of underlying eye conditions. These retinal imaging devices use special technology to photograph an ultra-wide view of the inside of your eye in a single image. This quick and affordable form of retinal screening is becoming a staple in eye doctors’ offices across the United States. If you’ve had an eye exam recently, there’s a good chance you’ve seen a digital retinal scan machine.

Hypertensive retinopathy (a complication of high blood pressure) In addition to monitoring the overall health of your eyes, a retinal exam can be used to detect the early signs of some conditions, including:ĭiabetic retinopathy (a complication of diabetes) Your eye doctor will decide which test(s) to perform depending on any risk factors and/or symptoms you may have. Some forms of retinal exams are better at detecting certain diseases than others. Each plays a slightly different role in maintaining the health of your retina - the thin layer of tissue in the back of your eye that is essential for good vision.

Optometrists and ophthalmologists have several forms of retinal imaging at their disposal.

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