ABSTRACT
Juvenile myopia has become a serious public health problem in China, presenting rapidly increasing incidence and younger onset age.Refractive eye development is controlled by both genetic and environmental factors.In recent years, near work among environmental factors has become a hotspot in myopia risk factors research.However, the association between near work and myopia still remains controversial.In this article, the epidemiological studies on the relationship between near work content, total time spent on near work, intensity of near work and myopia, and its possible mechanisms (including near-work-induced transient myopia, accommodative lag and scleral hypoxia) were summarized, so as to provide reference for myopia epidemiology and etiology.
ABSTRACT
Objective To investigate choroid thickness at horizontal meridian with optical coherence tomography (OCT) and compare the choroid thickness difference between first visit myopia children with those children who wear orthokeratology lens for more than 1 year.Methods This retrospective study enrolled 68 myopia children with low to moderate myopia (-1.00--6.00 D) who visited our hospital and took choroid images by OCT.The total subjects were divided into 2 groups.The subjects of 34 children in group 1 visited for myopia initially and wear spectacles.The other one group wear orthokeratology lens more than 1 year.Only the data of right eye were analyzed.Scans through the fovea at horizontal meridian were acquired with OCT.Choroid images were detected by custom software with 500 μm intervals up to 3.5 mm around fovea.Choroid thickness (CT) was calc~ated based on the average of the 7 zones.Statistical analysis was performed to evaluate choroid thickness at each zone.ANOVA was used to compare choroid thickness differences between various zones in each group.Paired t test was used to compare choroid thickness difference at the same zone between two groups.Results The mean age of OK lens group was (12.3 ± 1.8) years old,and the spectacles group was (11.8 ± 1.4) years old,there was no statistical difference.From temple to nasal choroid,the mean CT of the orthokeratology lens group were (296.7 ± 61.8) μm (T3),(290.7 ± 58.9) μm (T2),(285.7 ± 57.4) μm (T1),(278.5 ±57.7) μm (M),(262.2 ±57.9) μm (N1),(239.8 ±59.7) μm (N2),(214.7 ±59.0) μm (N3);And the mean CT of the spectacles group were (294.2 ± 45.4) μm (T3),(292.0±44.0) μm (T2),(283.6 ±45.5) μm (T1),(272.0 ±51.6) μm (M),(255.2 ± 56.3) μm (N1),(236.5 ±58.1)μm (N2),(212.8 ±57.7) μm (N3),respectively.The thicknesses were significantly thicker in temple zones than that in nasal zones in each group (all P ＜ 0.05),but the CT was not significantly different between the two groups in each zone (all P ＞ 0.05).Conclusion The choroid thickness has regional deference in myopia children,the thickest is in the temple and the thinnest in the nasal region.There is no significant difference between the children who initially corrected by spectacles and those who wear OK lens more than 1 year.
ABSTRACT
Bilingual teaching has become an important teaching method in the Higher Medical Education.The major of Optometry and Ophthalmology in Wenzhou Medical College is an organic integration of the modem western optometry and traditional ophthalmology,and also have the advantage of international education background.In the past twenty years,we have made positive practices and explorations in bilingual teaching.In this paper,we will take The Contact Lens Course ( National recconmentation course and National bilingual demonstration course ) for example to share the useful experiences and results,and to set an important model in spreading bilingual teaching for other clinical medicine disciplines.
ABSTRACT
In order to analyze the difference and the significance of the 5-year and 3-year Ophthalmology and Optometry education,we compare the 5-year and 3year teaching.The result indicates that there are different emphases and characteristics between the 5-year and 3-year teaching,especially in bringing up the students with practice skills.It also offers the reference to the teaching of different levels.