What is normal thickness of retina?

What is normal thickness of retina?

Table 1

What is a normal retinal thickness in microns?

Age distribution of 100 volunteers examined in the study. The mean retinal thickness of all subjects was 249.0 (SD 21.8) μm (male 248.7 μm, female 249.2 μm). These values ranged from 191 μm and 310 μm, 95% of them were between 205.4 μm and 292.5 μm.

What are normal OCT results?

Reports of RNFL thickness values measured by OCT in large studies (n>100)

What is a good macular thickness?

Using the ETDRS map, foveal thickness for all subjects was measured to be 229±20.46 µm. The mean macular thickness for all subjects was 262.8±13.34 µm….Table 1.

What is a normal retina?

The retina is a delicate, multilayered light-sensitive membrane lining the inside wall at the back of the eye. It is connected by the optic nerve to the brain. The macula, at the center of the retina, creates our ability to see detail. The central pit in the macula that produces the sharpest vision is the fovea.

How is retinal thickness measured?

The scanning laser ophthalmoscope produces an image by rapidly scanning a laser spot across the retina, both horizontally and vertically. Any laser wavelength can be used, but red or infrared light is usually chosen for three-dimensional imaging, as the longer wavelengths are able to penetrate deeper into the retina.

What is normal RNFL thickness on OCT?

Reproducibility studies using an OCT prototype have shown SDs of measurement of RNFL and retinal thicknesses of approximately 10 to 20 µm (10%-20%) in normal and glaucomatous eyes.

Does the Stratus Oct™ machine increase retinal thickness?

These results are consistent with two studies using earlier OCT models.2, 3This, however, is in contrast to two other studies which did not use an Stratus OCT™ machine which found increased retinal thickness in subjects with diabetes but no retinopathy.

What is the purpose of retinal thickness analysis (RTA)?

Fritsche P, Van Der Heijde R, Suttorp-Shulten M, Polak B. Retinal thickness analysis(RTA): an objective method to assess and quantify the retinal thickness in healthy controls and in diabetics without diabetic retinopathy. Retina. 2002;22:768–771.

What is the normal thickness of the retina?

The mean and standard deviation retinal thickness by sector are shown in Figure 2 and Table 1. The foveal thickness never exceeded 252 μm in any of the healthy eyes. As expected, macular thickness was thinnest at the center, thickest within 3-mm diameter of the center, and diminished toward the periphery of the macula.

Can we measure normal macular thickness using OCT mapping software?

Objective To report normal macular thickness measurements in healthy eyes using the latest commercially available optical coherence tomography (OCT) mapping software, version 3.0, from the Stratus OCT (OCT3). Methods Thirty-seven eyes from 37 healthy subjects underwent a complete ophthalmologic examination, including OCT.