What is Mesopic Microperimetry?
Microperimetry is a non- invasive method used to analyse fixation and central retinal sensitivity. The introduction of mesopic and more recently scotopic microperimetry, in research and clinical practice of macular disorders allows us to better investigate macular function as it strictly relates to macular morphology.
What is Microperimetry testing?
Microperimetry is a type of visual field test which uses one of several technologies to create a “retinal sensitivity map” of the quantity of light perceived in specific parts of the retina. Visual field testing is widely used to monitor pathologies affecting the periphery of vision such as glaucoma.
How is Microperimetry performed?
Microperimetry was performed in all study subjects under mydriatric state using Goldmann size III stimuli, 4-2 staircase threshold strategy, using Square 5×5 -9° pattern. An automated program was used and 25 stimuli were projected in the central 9° of fundus in a 5 x 5 square pattern [Table/Fig-1].
What is an OCT test in ophthalmology?
Optical coherence tomography (OCT) is a non-invasive imaging test. OCT uses light waves to take cross-section pictures of your retina. With OCT, your ophthalmologist can see each of the retina’s distinctive layers. This allows your ophthalmologist to map and measure their thickness.
What is Mesopic pupil?
Mesopic vision is a combination of photopic vision and scotopic vision in low but not quite dark lighting situations. Mesopic light levels range from luminances of approximately 0.01 cd/m2 to 3 cd/m2. Most nighttime outdoor and street lighting scenarios are in the mesopic range.
What is perimetry in ophthalmology?
Perimetry is the systematic measurement of visual field function (the total area where objects can be seen in the peripheral vision while the eye is focused on a central point). The two most commonly used types of perimetry are Goldmann kinetic perimetry and threshold static automated perimetry.
What is mfERG?
Multifocal Electroretinography (mfERG) Vision Testing Multifocal ERG is a highly-advanced vision test that objectively measures how well your vision system is working.
What is an OCT test used for?
What is Optical Coherence Tomography (OCT)? OCT is an imaging method used to generate a picture of the back of the eye, called the retina. The picture is made by precisely measuring the amount of a dim red light that reflects off the retina. OCT is routinely used to image the eyes of patients with glaucoma.
What does an OCT scan measure?
The OCT scan uses a laser (without radiation) to obtain higher resolution images of the layers of the retina and optic nerve. The color-coded images provide a wealth of information to help your eye doctor measure the thickness of your retina and identify any optic nerve abnormalities.
What are mesopic conditions?
Mesopic vision is a combination of photopic vision and scotopic vision in low but not quite dark lighting situations. Mesopic light levels range from luminances of approximately 0.01 cd/m2 to 3 cd/m2. At many nighttime levels, a combination of both cones and rods supports vision.
What is photopic and scotopic?
Scotopic and Photopic Vision Scotopic vision uses only rods to see, meaning that objects are visible, but appear in black and white, whereas photopic vision uses cones and provides colour.
How does the Oct / SLO work in the retina?
The OCT/SLO delivers an image that shows a three dimensional, cross-sectional view of the retina in any particular area, typically in the central pole area of the retina around the optic nerve and macula and is used to detect the presence of and understand the severity of disease, determine treatment approaches and monitor post-treatment effect.
What do you need to know about OPTOS imaging?
Further to ultra-widefield retinal imaging and OCT products, Optos has an expanded range of imaging devices that support different customer segments and patient needs. The range includes visual acuity, perimetry and treatment laser products. For more information please visit our website www.optos.com.
When did OPTOS get 510 ( k ) clearance for retinal imaging?
11 March 2013 – Optos plc (LSE: OPTS), a world leader in retinal imaging, today announced that it has received 510 (k) clearance from the U.S. Food and Drug Administration (FDA) for Microperimetry as part of the OptosOCT SLO.
Which is the only SLO device on the market?
The Optos OCT SLO is the only device on the market that can conduct structural OCT and functional Microperimetry testing. This combination makes it easier for eye care professionals to effectively assess treatment results.