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Comparative analysis of the morphometric parameters of the macular area of the retina in patients with refractive, axial, mixed and combined tipes of myopia
Author(s) -
Bushuyeva N.,
Maliieva O.
Publication year - 2016
Publication title -
acta ophthalmologica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.534
H-Index - 87
eISSN - 1755-3768
pISSN - 1755-375X
DOI - 10.1111/j.1755-3768.2016.0296
Subject(s) - ophthalmology , refraction , retina , medicine , optics , physics
Purpose Comparing the parameters of the macular area in patients with refractive, axial, mixed and combined myopia. Methods 63 patients (121 eyes) with myopia (−3.20 ± 2.8 D) (20.46 ± 12.13 y.o.) were identified in the groups: refractive (RM) – 28 eyes, combined (CM) – 11 eyes, axial (AM) – 65 eyes and mixed myopia (MM) – 17 eyes. Patients hold: visometry, kerathometry, refraktometry, ultrasonic echobiometry, OCT of the retina and the anterior chamber angle (ACA). Results In patients with MM (242.0 ± 12.4 μ m) macular thickness (MT) was less than in RM group (249.2 ± 9.4 μ m). In AM group the fovea thickness (FT) was (184.44 ± 20.28 μ m) higher (p < 0.01) than in the RM (169.64 ± 20.64 μ m) MM (168.05 ± 19.74 μ m) and CM (172.30 ± 15.2 μ m) droups. Fovea volume (FV) was less (p < 0.01) in the MM group than in patients with AM (6.90 ± 0.34 mm³), RM (7.01 ± 0.26 mm³) and CM (6.91 ± 0.24 mm³). Conclusions 1. Patients with MM had a tendency to decrease MT at 2.5% in comparing to CM and AM and significant reduction at 2.9% compared to the RM (p < 0.05), as well reduction of FV at 10% (p < 0.01) comparing to AM, RM and CM. MM showed the correlation FV with the axial length (AL) ( r = −0.54, p < 0.026) and refraction ( r = 0.54, p < 0.024). MM had correlation between corneal thikness and FT ( r = 0.58, p < 0.014). 2. AM had minimal FT thikner at 11% and FT in the area of 0.6 mm at 8% comparing to the RM (p < 0.01), MM (p < 0.01) and CM (p < 0.05 and p < 0.01). 3. RM had tendency of influence of the anterior segment parameters on the macula area – a negative correlation of the width of the ACA ( r = −0.27, p < 0.16) and the intraocular pressure ( r = −0.48, p < 0.009) with TF and positive correlation corneal`s curvature with MT ( r = 0.34, p = 0.07) and FV ( r = 0.35; p = 0.06).