Lens-induced myopization and intraocular pressure in young guinea pigs

Autor: Li Dong, Yi Fan Li, Hao Tian Wu, Hai Di Kou, Yin Jun Lan, Ya Xing Wang, Jost B. Jonas, Wen Bin Wei
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Zdroj: BMC Ophthalmology, Vol 20, Iss 1, Pp 1-9 (2020)
Druh dokumentu: article
ISSN: 1471-2415
DOI: 10.1186/s12886-020-01610-x
Popis: Abstract Background Intraocular pressure (IOP) is an important physiological measure of the eye and is associated with some ocular disorders. We aimed to assess the influence of topical beta blocker-induced IOP reduction on lens-induced axial elongation in young guinea pigs. Methods The experimental study included 20 pigmented guinea pigs (age: 2–3 weeks). Myopia was induced in the right eyes for 5 weeks with − 10 diopter lenses. The right eyes additionally received either one drop of carteolol 2% (study group, n = 10) or one drop of artificial tears daily (control group, n = 10), while the contralateral eyes of all animals remained untouched. The outcome parameter was axial elongation during the follow-up period. The mean of all IOP measurements taken during the study was referred to as mean IOP. Results Greater axial elongation was associated with a shorter axial length at baseline (P 0.25). Conclusions In young guinea pigs with or without lens-induced axial elongation, neither the physiological IOP nor the IOP reduced by carteolol, a topical beta-blocker, was associated with the magnitude of axial elongation. These results suggest that IOP, regardless of whether it is influenced by carteolol, does not play a major role in axial elongation in young guinea pigs.
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