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Read e-book online Atlas of Posterior Fundus Changes in Pathologic Myopia PDF

By Takashi Tokoro

ISBN-10: 4431679510

ISBN-13: 9784431679516

ISBN-10: 4431680187

ISBN-13: 9784431680185

Pathologic myopia that's as a result of axial elongation motives thinning of the retina and choroid, specifically in circumstances of posterior staphyloma. the results of this myopia is the improvement of varied different types of chorioretinal atrophy within the posterior pole, with a steady development of the atrophic alterations extending over a number of many years. before, stories of atrophic lesions and their scientific path were incomplete, and diagnostic criteria and category of chorioretinopathy were doubtful. The Atlas of PosteriorFundus alterations in Pathologic Myopia discusses those and different vital questions about the foundation of long term remark and learn. an important characteristic of the ebook is the presentation of many case stories, with beneficiant use of full-color images to teach intimately the process fundus adjustments. The atlas is efficacious source not just for ophthalmologists drawn to myopia yet for optometrists, opticians, and scientific students.

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Percentage of eyes with diffuse chorioretinal atrophy in eyes with posterior staphyloma by age group. 0 60 60 Oll co u .... 682 ~ (\) ;: y 0 100 co E u 40 .... ~ 20 0 0 0 O9 l D- 19 2029 309 40 OJ 0 u p.. 0 D2 '">, ~ ..... 842 • 80 MA 0 60 (\) Oll ell c: C co 40 ... (\) 40 U .... () p.. 6069 (\) () OJ U y 100 () S 5059 Age (Years) (%) 100 4049 (\) p.. 20 0 09 1019 2029 • 3039 20 0 4049 5059 6069 7079 8089 Age (year ) • o9 lD19 2029 309 4049 5059 6069 Age (Year) Fig. 50. Scattergrams show each kind of diffuse chorioretinal atrophy by age in eyes with posterior staphyloma, with linear regression analyses calculated for each type The change in each type of diffuse chorioretinal atrophy also has been investigated.

2 Percentage of Eyes with Diffuse Chorioretinal Atrophy by Axial Length If the axial length is longer than 30 mm in high myopic eyes, chorioretinal atrophy and the functional impairment of the eye will become severe [1,3,22,23,28,40]. It is observed that about 90% of eyes with only tessellated In myopia, there is a correlation between axial length and fundus and no chorioretinal atrophy have an axial length refraction, which indicates that the degree of myopia will less than 26 mm. This percentage decreases linearly in be high if the axial length is long.

8%) had MA. 4% of all pathologic myopic eyes). 7% reported in the national survey conducted by a research group 28 4. Explanatory Factors of Chorioretinal Atrophy from the Ministry of Health and Welfare of Japan [8]. The difference in percentages may be because most of the patients we describe have severe complications and were referred to our high myopia clinic by other physicians. The percentage of choroidal vascular membrane tends to increase gradually with aging after 20 years, although no choroidal vascular membrane is observed in those under age 20 (Fig.

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Atlas of Posterior Fundus Changes in Pathologic Myopia by Takashi Tokoro

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