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Chris Morrison

Researcher at University of Pennsylvania

Publications -  8
Citations -  4416

Chris Morrison is an academic researcher from University of Pennsylvania. The author has contributed to research in topics: Randomized controlled trial & Macular degeneration. The author has an hindex of 8, co-authored 8 publications receiving 4097 citations.

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Journal ArticleDOI

A randomized, placebo-controlled, clinical trial of high-dose supplementation with vitamins C and E, beta carotene, and zinc for age-related macular degeneration and vision loss: AREDS report no. 8

TL;DR: People older than 55 years should have dilated eye examinations to determine their risk of developing advanced AMD and those with extensive intermediate size drusen, at least 1 large druse, noncentral geographic atrophy in 1 or both eyes, or advanced AMD or vision loss due to AMD in 1 eye should consider taking a supplement of antioxidants plus zinc.
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Evaluation of Grid Pattern Photocoagulation for Macular Edema in Central Vein Occlusion: The Central Vein Occlusion Study Group M Report

John G. Clarkson, +121 more
- 01 Oct 1995 - 
TL;DR: In this article, the efficacy of macular grid photocoagulation in preserving or improving central visual acuity in eyes with macular edema due to central vein occlusion was evaluated.
Journal ArticleDOI

A randomized, placebo-controlled, clinical trial of high-dose supplementation with vitamins c and e and beta carotene for age-related cataract and vision loss: AREDS report no. 9

TL;DR: Use of a high-dose formulation of vitamin C, vitamin E, and beta carotene in a relatively well-nourished older adult cohort had no apparent effect on the 7-year risk of development or progression of age-related lens opacities or visual acuity loss.
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The Age-Related Eye Disease Study (AREDS) system for classifying cataracts from photographs: AREDS Report No. 4

TL;DR: The AREDS system has demonstrated a high degree of reliability in grading the severity of lens opacities in a large study cohort with mostly early lens changes, the type of cohort most likely to be entered in clinical trials involving cataract prevention.
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Progression of Geographic Atrophy in Age-related Macular Degeneration: AREDS2 Report Number 16.

Tiarnan D L Keenan, +1001 more
- 01 Dec 2018 - 
TL;DR: GA enlargement, which was influenced by lesion features, was relentless, resulting in rapid central vision loss, and the genetic variants associated with faster enlargement were partially distinct from those associated with risk of incident GA.