[The relationship between eyeball structure and visual acuity in high myopia].
OBJECTIVE
To explore the relationship between eyeball structure and visual acuity in high myopia.


METHODS
Totally, 152 people (283 eyeballs) with different levels of myopia were tested for visual acuity, axial length, and fundus. All cases were classified according to diopter, axial length, and fundus. The relationships between diopter, axial length, fundus and visual acuity were studied. The mathematical models were established for visual acuity and eyeball structure markers.


RESULTS
The visual acuity showed a moderate correlation with fundus class, comus, axial length and diopter ([r] > 0.4, P < 0.000 1). The visual acuity in people with the axial length longer than 30.00 mm, diopter above -20.00 D and fundus in 4th class were mostly below 0.5. The mathematical models were established by visual acuity and eyeball structure markers.


CONCLUSIONS
The visual acuity should decline with axial length extension, diopter deepening and pathological deterioration of fundus. To detect the structure changes by combining different kinds of objective methods can help to assess and to judge the vision in high myopia.
Liu
Yi-Chang
YC
Medical College of Nantong University, Nantong 226001, China. liuyichang2008@126.com
Xia
Wen-Tao
WT
Zhu
Guang-You
GY
Zhou
Xing-Tao
XT
Fan
Li-Hua
LH
Liu
Rui-Jue
RJ
Chen
Jie-Min
JM
D000328:Adult; D005123:Eye / Q000473:pathology* / Q000503:physiopathology*; D005554:Forensic Medicine; D005654:Fundus Oculi; D006801:Humans; D008297:Male; D008875:Middle Aged; D008962:Models, Theoretical; D009216:Myopia / Q000473:pathology*; D012029:Refraction, Ocular; D012720:Severity of Illness Index; D014787:Vision Tests; D015354:Vision, Low / Q000473:pathology; D014792:Visual Acuity; D055815:Young Adult