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Clinical Research

Clinical and genetic determinants of chronic visual pathway changes after methanol - induced optic neuropathy: four-year follow-up study

, , , , , , , , , , , , , , , & show all
Pages 387-397 | Received 15 Aug 2018, Accepted 28 Sep 2018, Published online: 17 Nov 2018

Figures & data

Table 1. Demographic and laboratory data of the study population and the control group (means with SD).

Figure 1. P1 latency of visual evoked potentials in the study population (n = 42) versus controls (n = 41). OD: oculus dexter; OS: oculus sinister; ms: : milliseconds; “6 months”, “24 months”, “48 months”: clinical examinations performed after discharge from hospital; ***p < .001; **p < .01; *p < .05.

Figure 1. P1 latency of visual evoked potentials in the study population (n = 42) versus controls (n = 41). OD: oculus dexter; OS: oculus sinister; ms: : milliseconds; “6 months”, “24 months”, “48 months”: clinical examinations performed after discharge from hospital; ***p < .001; **p < .01; *p < .05.

Figure 2. Dynamics of P1 latency changes during the observation period depending on arterial blood pH at admission. OD: oculus dexter; OS: oculus sinister; Latency: : mean P1 latency, ms; pH: arterial blood pH measured on admission to hospital.

Figure 2. Dynamics of P1 latency changes during the observation period depending on arterial blood pH at admission. OD: oculus dexter; OS: oculus sinister; Latency: : mean P1 latency, ms; pH: arterial blood pH measured on admission to hospital.

Table 2. Mixed effect model predicting changes of P1 latency during four years of observation.

Figure 3. (A) N1P1 amplitude of VEPs in the study population (n = 42) versus control group (n = 41). (B) N1P1 amplitude of VEPs in the patients with the amplitude of at least 1.0 mcV in at least one eye during the observation period (n = 17) versus control group (n = 41). OD: oculus dexter; OS: oculus sinister; ms: milliseconds; “6 months”, “24 months”, “48 months”: clinical examinations performed after discharge from hospital; ***p < .001; **p < .01; *p < .05.

Figure 3. (A) N1P1 amplitude of VEPs in the study population (n = 42) versus control group (n = 41). (B) N1P1 amplitude of VEPs in the patients with the amplitude of at least 1.0 mcV in at least one eye during the observation period (n = 17) versus control group (n = 41). OD: oculus dexter; OS: oculus sinister; ms: milliseconds; “6 months”, “24 months”, “48 months”: clinical examinations performed after discharge from hospital; ***p < .001; **p < .01; *p < .05.

Table 3. Apolipoprotein E genotype and allele distribution between the study population and general czech populationa.

Table 4. The association of ApoE genotype group (ApoE2/E2(E3/E2) versus ApoE3/E3 versus ApoE4/E3(E4/E4)) with chronic structural and functional changes of the visual pathway during the observation period (n = 41).

Table 5. Apolipoprotein E genotype group (ApoE4 carriers versus non-carriers) and chronic structural and functional changes of the visual pathway during the observation period (n = 41).