Idiopathic macular hole : unusual cause of vision loss
Hajji Chaimae, Rajae Daoudi
The Pan African Medical Journal. 2014;18:246. doi:10.11604/pamj.2014.18.246.4791

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Idiopathic macular hole : unusual cause of vision loss

Cite this: The Pan African Medical Journal. 2014;18:246. doi:10.11604/pamj.2014.18.246.4791

Received: 09/06/2014 - Accepted: 06/07/2014 - Published: 26/07/2014

Key words: Idiopathic macular hole, vision loss, visual acuity

© Hajji Chaimae et al. The Pan African Medical Journal - ISSN 1937-8688. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Available online at: http://www.panafrican-med-journal.com/content/article/18/246/full

Corresponding author: Hajji Chaimae, Université Mohammed V Souissi, Service d’Ophtalmologie A de l’Hôpital des Spécialités, Centre Hospitalier Universitaire, Rabat, Maroc (chaimae.ha@gmail.com)


Low visual acuity and asteroid hyalosis

 

Salim Belhassan1,&, Rajaa Daoudi1

 

1University of Mohamed V souissi, hôpital des Spécialités, Ophtalology A Department

 

 

&Corresponding author
Salim Belhassan, University of Mohamed V Souissi, hôpital des Spécialités, ophtalmology A department, Morocco

 

 

Image in medicine

A 56 years old man was admitted to the ophthalmology department for low visual acuity since his 45 years old with no amelioration after optic correction. The physical exam found visual acuity at 1/10 on the right eye and 9/10 on the left one, clear cornea, intraocular pressure at 14 mmhg on both eyes, the fundus of the right eye showed multiple yellow mobile vitreous particles that are absent on the left fundus. Asteroid hyalosis is a degenerative condition of the eye involving small white opacities in the vitreous humor. Clinically, these opacities are quite refractile, giving the appearance of stars (or asteroids) shining in the night sky except that ocular asteroids are often quite mobile. Ocular asteroids must be distinguished from the more common typical vitreous floaters, which are usually fibrillar or cellular condensates. The cause of asteroid hyalosis is unknown, but it has been associated with diabetes mellitus, hypertension and hypercholesterolemia. The asteroid bodies are made up of hydroxylapatite, which in turn consists of calcium and phosphates or phospholipids. While asteroid hyalosis does not usually severely affect vision, the floating opacities can be quite annoying, and may interfere significantly with visualization and testing of the retina. The treatment of asteroid hyalosis is usually unnecessary, vitrectomy may occasionally be indicated, for both diagnostic and therapeutic purposes.

Figure 1: Asteroid hyalosis: multiple yellow mobile vitreous particles

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 


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