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Effect of Altered Retinal Cones/Opsins on Refractive Development under Monochromatic Lights in Guinea Pigs.
- Source :
-
Journal of Ophthalmology . 2/20/2018, p1-9. 9p. - Publication Year :
- 2018
-
Abstract
- <italic>Purpose</italic>. To analyze the changes of refraction and metabolism of the retinal cones under monochromatic lights in guinea pigs. <italic>Methods</italic>. Sixty guinea pigs were randomly divided into a short-wavelength light (SL) group, a middle-wavelength light (ML) group, and a white light (WL) group. Refraction and axial length were measured before and after 10-week illumination. The densities of S-cones and M-cones were determined by retinal cone immunocytochemistry, and the expressions of S-opsins and M-opsins were determined by real-time PCR and Western blot. <italic>Results</italic>. After 10-week illumination, the guinea pigs developed relative hyperopia in the SL group and relative myopia in the ML group. Compared with the WL group, the density of S-cones and S-opsins increased while M-cones and M-opsins decreased in the SL group (all, p<0.05); conversely, the density of S-cones and S-opsins decreased while M-cones and M-opsins increased in the ML group (all, p<0.05). Increased S-cones/opsins and decreased M-cones/opsins were induced by short-wavelength lights. Decreased S-cones/opsins and increased M-cones/opsins were induced by middle-wavelength lights. <italic>Conclusions</italic>. Altered retinal cones/opsins induced by monochromatic lights might be involved in the refractive development in guinea pigs. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 2090004X
- Database :
- Academic Search Index
- Journal :
- Journal of Ophthalmology
- Publication Type :
- Academic Journal
- Accession number :
- 128093654
- Full Text :
- https://doi.org/10.1155/2018/9197631