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Middle East African Journal of Ophthalmology Middle East African Journal of Ophthalmology
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EDITORIAL COMMENTARY
Year : 2011  |  Volume : 18  |  Issue : 1  |  Page : 1  

Ophthalmic genetics: Moving forward


Department of Ophthalmology, Ophthalmic Genetics Laboratory, College of Medicine, King Saud University, P. O. Box 245, Riyadh 11411, Saudi Arabia

Date of Web Publication19-Jan-2011

Correspondence Address:
Khaled K Abu-Amero
Department of Ophthalmology, Ophthalmic Genetics Laboratory, College of Medicine, King Saud University, P. O. Box 245, Riyadh 11411
Saudi Arabia
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0974-9233.75875

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How to cite this article:
Abu-Amero KK. Ophthalmic genetics: Moving forward. Middle East Afr J Ophthalmol 2011;18:1

How to cite this URL:
Abu-Amero KK. Ophthalmic genetics: Moving forward. Middle East Afr J Ophthalmol [serial online] 2011 [cited 2019 Sep 19];18:1. Available from: http://www.meajo.org/text.asp?2011/18/1/1/75875

The role of heredity in various ophthalmic diseases has been explored for more than 100 years, with the early focus on conditions that could be identified specifically as straightforward Mendelian inherited disorders. In these disorders, replication of the trait is easily observed and clear-cut probabilities of transmission can be readily calculated. The prevalence of consanguinity within Middle Eastern and African populations is relatively high and this is associated with increased frequency of inherited ocular diseases in this part of the world. [1] Therefore, the region should be at the forefront in attempting to benefit from recent advances in molecular genetics techniques and in putting these techniques to work for genetic testing and counseling.

Our understanding of the genetics of eye diseases has benefited tremendously from advances in molecular genetics techniques. [2] This became particularly apparent after the completion of the human genome mapping project, which facilitated the identification of an ever increasing number of human genes. Recently, the advent of exome sequencing (also known as targeted exome capture) to selectively sequence the coding regions of the human genome has certainly increased the likelihood of successfully identifying genes associated with specific familial ocular conditions. [3] This, in turn, will help in the development of suitable treatments and will improve our ability to decrease disease risk and to slow disease progression.

Unfortunately, the benefit of these advancements remains limited in Middle East and African developing countries. [4] This is clearly evident through the lack of genomic companies, the limited availability of genetic testing, and the limited number of significant scientific publications coming from this region in comparison with the developed world. Health authorities in the region served by the MEAJO, even though crippled by limited health budgets and concentrating efforts and resources on fundamental heath problems, need to make preventing genetic disorders (including hereditary ophthalmologic diseases) a priority. Certainly it is a challenging, but feasible task.

The purpose of this issue is to provide an up-to-date overview of the current status and future directions of the genetics of various common ophthalmic diseases. Reviews on the genetics and genomics of Keratoconus, [5] primary congenital glaucoma, [6] pseudoexfoliation syndrome/glaucoma, Leber hereditary optic neuropathy [7] and a comprehensive review on the genetic diagnostic methods for inherited eye diseases [8] are included in this issue.

We are very grateful to our colleagues who have contributed reviews to this special issue of MEAJO and who have served as reviewers for those manuscripts. We hope that this excellent collection of articles will provide the ophthalmologic community with up-to-date knowledge regarding this rapidly growing and changing field of ophthalmic genetics.

 
   References Top

1.Panter-Brick C. Parental responses to consanguinity and genetic disease in Saudi Arabia. Soc Sci Med 1991;33:1295-302.  Back to cited text no. 1
[PUBMED]    
2.Sherwin JC, Hewitt AW, Ruddle JB, Mackey DA. Genetic isolates in ophthalmic diseases. Ophthalmic Genet 2008;29:149-61.  Back to cited text no. 2
[PUBMED]  [FULLTEXT]  
3.Meyerson M, Gabriel S, Getz G. Advances in understanding cancer genomes through second-generation sequencing. Nat Rev Genet 2010;11:685-96.  Back to cited text no. 3
[PUBMED]  [FULLTEXT]  
4.Al-Gazali L, Ali BR. Mutations of a country: A mutation review of single gene disorders in the United Arab Emirates (UAE). Hum Mutat 2010;31:505-20.  Back to cited text no. 4
[PUBMED]  [FULLTEXT]  
5.Nowak D, Gajecka M. The Genetics of Keratoconus. Middle East Afr J Ophthalmol 2011;18:2-6.  Back to cited text no. 5
  Medknow Journal  
6.Kaur K, Mandal AK, Chakrabarti S. Primary congenital glaucoma and the involvement of CYP1B1. Middle East Afr J Ophthalmol 2011;18:7-16.  Back to cited text no. 6
    
7.Abu-Amero KK. Leber hereditary optic neuropathy: The mitochondrial connection revisited. Middle East Afr J Ophthalmol 2011;18:17-23.  Back to cited text no. 7
  Medknow Journal  
8.Gabriel LA, Traboulsi EI. Genetic diagnostic methods for inherited eye diseases. Middle East Afr J Ophthalmol 2011;18:24-29.  Back to cited text no. 8
  Medknow Journal  




 

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