The Minnesota Grading System of eye bank eyes for age-related macular degeneration.
نویسندگان
چکیده
PURPOSE The Minnesota Grading System (MGS) is a method to evaluate human eye bank eyes and determine the level of age-related macular degeneration (AMD), by using criteria and definitions from the Age-Related Eye Disease Study (AREDS). METHODS Donor eyes (108 pairs) from the Minnesota Lions Eye Bank were cut circumferentially at the pars plana to remove the anterior segment. A 1000 +/- 2.5-microm ruby sphere was placed on the optic nerve as a size reference. A digital, high-resolution, color macular photograph was taken through a dissecting microscope. The neurosensory retina was removed from one globe of the pair. The underlying retinal pigment epithelium was rephotographed, localizing the fovea with a proportional triangle. A grid was superimposed in the macular photographs and images were graded according to AREDS criteria. Twenty pairs were dissected bilaterally and graded for symmetry. RESULTS Eighty-eight globes were graded into one of four MGS categories. Nineteen (95%) of 20 globes had symmetric grades. CONCLUSIONS The MGS provides a methodology to grade donor tissue from eye bank eyes to correspond to the AREDS classification system. Donor tissue may be used for subsequent molecular analysis, including genomics and proteomics.
منابع مشابه
The Minnesota Grading System using fundus autofluorescence of eye bank eyes: a correlation to age-related macular degeneration (an AOS thesis).
PURPOSE To establish a grading system of eye bank eyes using fundus autofluorescence (FAF) and identify a methodology that correlates FAF to age-related macular degeneration (AMD) with clinical correlation to the Age-Related Eye Disease Study (AREDS). METHODS Two hundred sixty-two eye bank eyes were evaluated using a standardized analysis of FAF. Measurements were taken with the confocal scan...
متن کاملAxial and Posterior Wall Thickness Elastic Modulus of Eyes in Age-related Macular Degeneration (ARMD) Patients Compared to Healthy Individuals Using Ultrasound Images
Background & Aims: Age-related macular degeneration (ARMD) is one of the common retina disorders that can lead to loss of vision by increase in age. In this study, the efficacy of a non-invasive ultrasound technique for the evaluation of alastic properties of eye in the diagnosis of ARMD has been evaluated. Methods: For estimation of the elastic modulus of eye, spatial loading system designed a...
متن کاملDeclines in arrestin and rhodopsin in the macula with progression of age-related macular degeneration.
PURPOSE Biochemical analysis of age-related macular degeneration (AMD) at distinct stages of the disease will help further understanding of the molecular events associated with disease progression. This study was conducted to determine the ability of a new grading system for eye bank eyes, the Minnesota Grading System (MGS), to discern distinct stages of AMD so that retinal region-specific chan...
متن کاملTranspupilary thermotherapy of occult subfoveal choroidal neovascularization secondary to age related macular degeneration
Abstract Background: Transpupillary thermotherapy is a new treatment for subfoveal choroidal neovascularization which needs further evaluation. This study was aimed to evaluate the efficacy of transpupillary thermotherapy on regression of occult subfoveal choroidal neovascularization with or without pigment epithelial detachment in patients with age-related macular degeneration. Methods: In a ...
متن کاملThe Alabama Age-Related Macular Degeneration Grading System for donor eyes.
PURPOSE To develop a systematic method for identifying and grading age-related macular degeneration (ARMD) in human donor eyes, postmortem fundus appearance was compared with histopathologic assessment in eyes with a spectrum of age-related macular change. METHODS Eyes without grossly visible, late ARMD were obtained from 8 cancer patients and 26 donors older than 50 years. Postmortem fundus ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- Investigative ophthalmology & visual science
دوره 45 12 شماره
صفحات -
تاریخ انتشار 2004