It appears that morgagnian cataract is a special form of cortico-nuclear cataract. It is assumed that the process of fibre dissolution which is encountered in cortical cataract in general is speeded up and occurs en masse in morgagnian cataract. Enzymatic degradation of membrane and crystallin fibre components could then occur to produce liquefaction of the fibres and resorption of the cortical fluid. Factors responsible for the resistance of the nucleus to this process have been discussed. The high levels of calcium in the capsule and nucleus in this form of cataract could be due to the precipitation of calcium orthophosphate in the capsule and of calcium oxalate in the nucleus.
Download full-text PDF |
Source |
|---|
Publication Analysis
Top Keywords
Similar Publications
Identification of spontaneous age-related cataract in .
Zhong Nan Da Xue Xue Bao Yi Xue Ban
April 2024
Department of Laboratory Animal Science, Xiangya School of Medicine, Central South University; Changsha 410013.
Objectives: Age-related cataract is the most common type of adult cataract and a leading cause of blindness. Currently, there are few reports on the establishment of animal models for age-related cataract. During the experimental breeding of (), we first observed that aged 12 to 15 months could naturally develop cataracts.
View Article and Find Full Text PDFMorgagnian cataract.
Arq Bras Oftalmol
July 2024
Ophthalmology department, Hospital das Clínicas, Universidade de São Paulo, São Paulo, SP, Brazil.
Purpose: This study was conducted to develop a new optimized phacoemulsification technique for Morgagnian cataract taking into account the anatomical and topographic parameters of the lens nucleus.
Material And Methods: A working classification of Morgagnian cataract was developed based on the size of the nucleus: if the edge of the nucleus is visualized at the upper edge of the pupil or between the upper edge and the middle of the pupil, it was classified as an initial stage of Morgagnian cataract with a large nucleus; if the upper edge of the nucleus is visualized in the middle of the pupil and below, it was classified as an advanced stage of Morgagnian cataract with a small nucleus. The first group included six patients who underwent surgery using the scaffold technique with removal of the whole small nucleus into the anterior chamber.
Characterisation of cataracts and other ophthalmic findings in various species of captive penguins.
Vet Rec
February 2024
Departamento de Medicina y Cirugía Animal, Hospital Clínico Veterinario Complutense, Universidad Complutense de Madrid, Madrid, Spain.
Background: The identification of ophthalmic diseases that affect vision and/or cause discomfort should be a priority in captive penguins to improve their overall health and quality of life.
Methods: A routine ophthalmological examination was performed on 80 clinically normal penguins (160 eyes), and any lesions observed were recorded.
Results: Ocular lesions were frequent (56% of penguins), with cataracts being the most common (48.
Morgagnian Cataract With Liquified Nuclear Cleft.
JAMA Ophthalmol
April 2023
Department of Ophthalmology, Bascom Palmer Eye Institute, University of Miami School of Medicine, Miami, Florida.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!