By Takashi Tokoro
Pathologic myopia that's as a result of axial elongation reasons thinning of the retina and choroid, in particular in situations of posterior staphyloma. the results of this myopia is the advance of varied varieties of chorioretinal atrophy within the posterior pole, with a gentle development of the atrophic adjustments extending over a number of many years. in the past, stories of atrophic lesions and their medical direction were incomplete, and diagnostic criteria and category of chorioretinopathy were doubtful. The Atlas of PosteriorFundus alterations in Pathologic Myopia discusses those and different very important questions about the root of long term commentary and learn. an immense function of the publication is the presentation of many case reviews, with beneficiant use of full-color photos to teach intimately the process fundus adjustments. The atlas is effective source not just for ophthalmologists drawn to myopia yet for optometrists, opticians, and scientific students.
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Extra resources for Atlas of Posterior Fundus Changes in Pathologic Myopia
Distribution by number of eyes is nearly normal. Shaded areas, eyes with posterior staphyloma; white areas, eyes without posterior staphyloma. 0 60 ::l 110 E Z 80 -5 3 E'" 70 :G ~ 60 ~ E 50 '0 ~ tlO OJ (/) co '30 2 0 c -~ 20 ~ ~ :... til 10 ... 9 329 above o 0.. 0.. 1 Diffuse Chorioretinal Atrophy Without Posterior Staphyloma (662 Eyes) 1. The percentage of eyes with progression of diffuse chorioretinal atrophy and no staphyloma is lower than that in all myopic eyes (the transition rate is small).
When all the eyes with high myopia are divided into groups under and over age 40, the percentage of eyes with D z differs by axial length. Because diffuse chorioretinal atrophy progresses with aging, the percentage of eyes with D z after age 40 is much higher than that before age 40 when the axial length is the same. In other words, chorioretinal atrophy is more common with aging, no matter how long the axial length (Fig. 27). When the axial length is within the range of 27 to 33 mm, the increase in the percentage of eyes with Dz can be calculated using a simple regression equation.
60 OJ 0) u 01 >. <1) '" C 0 0 OJ 0 20 20 0 0 0 09 1019 2029 3039 a 4049 5059 6069 7079 089 '"OJ>. • Lll ...... u 3039 4049 50- 59 69 60- 7079 809 6069 7079 09 100 • 0 02 U> <1) >. 0 60 00 E:! c 2029 (%) Y = . 721 0 1019 Age (Year ) Age (Years) (%) 100 09 MA 60 <1) ct 20 0 00 • 40 '" C OJ .. 48. Scattergrams show each kind of diffuse chorioretinal atrophy by age in eyes without posterior staphyloma, with linear regression analyses calculated for each type >-, -E. <: 0 ~~ '10 QI Q) Dl MA so O 'L: ~~ [J DI 90 UJ ...