The changes below were made to the article on the date noted. These changes have been incorporated in the article and the details are documented here.

3 January 2006:

The last sentence of the penultimate paragraph of the Discussion was corrected from:

The retinal degeneration associated with RP induces neurite sprouting and new synapse formation in human [51] and pig [24] retina, thus it is likely that a host of genes undergo changes in their regulation.

to:

The retinal degeneration associated with RP induces neurite sprouting in human retina [51] and new synapse formation in pig retina [28], thus it is likely that a host of genes undergo changes in their regulation.

The format of reference 1 was corrected from:

1. Gal A, Apfelstedt-Sylla E, Janecke AR, Zrenner E. Rhodopsin mutations in inherited retinal dystrophies and dysfunctions. In: Osborne NN, Chader GJ, editors. Progress in Retinal and Eye Research. Vol 16. Great Britain: Elsevier Science; 1997. p. 51-79.

to:

1. Gal A, Apfelstedt-Sylla E, Janecke AR, Zrenner E. Rhodopsin mutations in inherited retinal dystrophies and dysfunctions. Prog Retin Eye Res 1997; 16:51-79.

Reference 4 was changed from:

4. Portera-Cailliau C, Sung CH, Nathans J, Adler R. Apoptotic photoreceptor cell death in mouse models of retinitis pigmentosa. Proc Natl Acad Sci U S A 1994; 91:974-8.

to:

4. Chang GQ, Hao Y, Wong F. Apoptosis: final common pathway of photoreceptor death in rd, rds, and rhodopsin mutant mice. Neuron 1993; 11:595-605.

The fourth and third column headers for Table 1 and Table 2, respectively, were changed from "Dim flash response" to "Sensitivity (dim flash)".