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Related Experiment Video

Updated: Jun 27, 2026

Morphometric Analyses of Retinal Sections
14:33

Morphometric Analyses of Retinal Sections

Published on: February 19, 2012

Structure-Function Correlation Using a Targeted Image- Guided Microperimetry Approach for Retinal Atrophic Diseases:

Rubbia Afridi, M Sohail Halim, Mohamed Ahmed

    Medrxiv : the Preprint Server for Health Sciences
    |July 17, 2025
    PubMed
    Summary
    This summary is machine-generated.

    Image-guided microperimetry (IGMP) is feasible for assessing retinal atrophic diseases like geographic atrophy and Stargardt Disease. This targeted approach enhances structure-function correlation and optimizes clinical trial efficiency.

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    Ex Vivo OCT-Based Multimodal Imaging of Human Donor Eyes for Research into Age-Related Macular Degeneration

    Published on: May 26, 2023

    Area of Science:

    • Ophthalmology
    • Medical Imaging
    • Retinal Diseases

    Background:

    • Retinal atrophic diseases, including geographic atrophy (GA) and Stargardt Disease (SD), significantly impact vision.
    • Accurate functional assessment and lesion mapping are crucial for understanding disease progression and evaluating treatments.

    Purpose of the Study:

    • To evaluate the feasibility of a targeted, image-guided microperimetry (IGMP) workflow.
    • To integrate Optical Coherence Tomography (OCT) and Fundus Autofluorescence (FAF) for precise lesion mapping and functional assessment.
    • To assess IGMP in patients with retinal atrophic diseases.

    Main Methods:

    • 22 eyes (17 GA, 5 SD) were analyzed.
    • Disease transition zones (TZs) identified via OCT and FAF were mapped onto enface infrared images.
    • Custom MATLAB applications facilitated the integration of microperimetry data.
    • Targeted IGMP scans were performed using MAIA and Nidek microperimeters.

    Main Results:

    • Targeted IGMP proved quicker than standard grids for both GA and SD assessments.
    • SD cases exhibited longer procedure/examination times and lower retinal sensitivity compared to GA.
    • IGMP approach demonstrated 100% feasibility and 100% algorithm compatibility on both tested devices.

    Conclusions:

    • The study confirms the feasibility of an IGMP workflow for targeted functional assessments in retinal degenerative diseases.
    • This method can improve structure-function correlation and streamline microperimetry in clinical trials.
    • Further validation in larger patient cohorts is recommended for broader clinical applicability.