Age-related macular degeneration (AMD) affects the choroid, RPE and outer retinal layers. The condition is divided into non-exudative/dry and exudative/wet. Early detection of exudative AMD is essential to prevent permanent vision loss. The goal of the eye care provider is to detect early CNVM before subretinal fibrosis develops leading to...

Progression of Dry AMD Over 76 Months : Baseline OCT images of the right eye (A) and left eye (B) show the initial state of drusenoid PEDs and pigmentary changes in dry AMD. After 76 months (C and D), the images reveal the development of geographic atrophy, the disappearance of drusenoid PEDs, and notable pigmentary alterations.

The better definition achieved by OCT devices that include SD technology allows a more detailed study of the outer retinal layers and RPE, which are important structures in the development of dry AMD. Thus, new SD-OCT instruments can accurately distinguish the presence and size of drusen and RPE changes, making it possible to differentiate the ...

2018年4月1日 · In this study, swept-source (SS) OCT-A allowed the researchers to monitor disease status in eyes with intermediate dry AMD or geographic atrophy (GA), with wet AMD in the fellow eye. Within a year, wet AMD developed in 24% of eyes with—and in 5.4% of eyes without—subclinical CNV detected by SS-OCT-A. 1

2021年4月15日 · Fig. 4. A patient with advanced dry AMD was seen with 20/20 OS. Less than three weeks later, the patient self reported visual changes and was brought into the clinic. OCT confirmed conversion to wet AMD OS and 20/25 vision (bottom). Click image to enlarge.

Color fundus photographs have been the traditional way to document the findings of dry AMD. OCT. In dry AMD, Spectral-domain OCT (SD-OCT) can be being used to monitor, count and quantify drusen and geographic atrophy which can be followed through time. SD-OCT has the advantage of being faster and has higher resolution than the older time-domain ...

There is evidence of early changes in the choroid, RPE, and photoreceptors in patients with dry AMD [22, 23]. OCT has been used extensively to study dry AMD. With the advent of high-resolution spectral-domain (SD) OCT, we have been able to observe and quantify the structural changes that occur in the retina and RPE and to some extent, the ...

2024年6月15日 · Fig. 4. This series of OCT images demonstrates slow progression of AMD from early to intermediate over five years; however, with increased drusen volume and development of pigment epithelial detachments, the patient converted from dry to neovascular AMD in less than a year. Click image to enlarge.

2025年1月1日 · In dry AMD, OCT images may reveal drusen deposits and thinning of the retinal layers, indicating a gradual degeneration process. These findings can help your doctor assess the severity of the condition and monitor any changes over time. In contrast, wet AMD is characterized by more dramatic changes visible on OCT scans.

2025年1月2日 · In dry AMD, you may observe drusen—small yellowish deposits located between the RPE and Bruch’s membrane—on OCT scans. ... By recognizing these common findings associated with AMD on macular OCT, you can better tailor treatment strategies and provide your patients with informed prognoses. Common Macular OCT Findings in Diabetic Macular ...