Purpose:
To evaluate the ocular refractive and biometric characteristicsin patients with tilted disc syndrome (TDS).
Methods:
This case-control study comprised 41 eyes of 25 patients withestablished TDS and forty eyes of 20 age- and sex-matched healthycontrol subjects. All had a complete ocular examination includingrefraction and analysis using Fourier transformation, slit lampbiomicroscopy, pachymetry, keratometry, and ocular biometry.Corneal topography examinations were performed in the syndromegroup only.
Results:
There were no significant differences in spherical equivalent(p = 0.334) and total astigmatism (p= 0.246) between groups.However, mean best spectacular corrected visual acuity was significantlyworse in TDS patients (P < 0.001). The lenticular astigmatismwas significantly greater in the syndrome group, while the cornealcomponent was greater in the controls (p = 0.004 and p = 0.002,respectively). The measured biometric features were the samein both groups, except for the lens thickness, relative lensposition, and lens-axial length factor which were greater inthe TDS group (p = 0.002, p = 0.015, and p = 0.025, respectively).
Conclusions:
Clinically significant lenticular astigmatism, more obliquecorneal astigmatism, and thicker lens were characteristic findingsin patients with TDS.