The effect of contact lens wear on retinal spectral domain optical coherence tomography

Aviram, Talia; Beeri, Idan; Berkow, David; Zayit‐Soudry, Shiri; Blumenthal, Eytan Z.; Shapira, Yinon

doi:10.1111/cxo.13064

Cited by 5 publications

(4 citation statements)

References 39 publications

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“…Their study included 20 eyes from only 12 patients. Aviram et al 12 did not find any difference in OCT image quality nor macular thickness results with and without contact lens wear. However, subjects had only low to moderate amount of myopia.…”

Section: Introductionmentioning

confidence: 86%

Fixation stability and deviation in optical coherence tomography angiography using soft contact lens correction in myopes

Lam

Lau

Wong

et al. 2021

Sci Rep

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To compare fixation deviation and stability with soft contact lens correction and device built-in auto-focus system during optical coherence tomography angiography (OCTA). This observational study measured OCTA metrics first with contact lens correction, followed by removal of contact lenses, using the device auto-focus system at a University Optometry Clinic, Hong Kong. All participants were habitual soft contact lens wearers with either low or high myopia. OCTA measurements were obtained using a spectral domain OCTA. Fixation deviation was distance (in pixels) of the fovea to the center of the OCTA measurement grid. Fixation stability was test–retest repeatability (TRR) and coefficient of variation (CV) of fixation deviation from three consecutive OCTA measurements. OCTA metrics included vessel length density (VD), perfusion density (PD), and foveal avascular zone (FAZ) area. Averaged OCTA metrics were calculated from three measurements and compared between the two correction methods. The mean ± SD spherical equivalent of 74 eyes from 74 myopes measured was − 1.94D ± 0.75D in low myopes (n = 37) and − 7.97D ± 1.31D in high myopes (n = 37). When corrected with contact lenses, visual acuities of high myopes (median [IQR], − 0.06 [0.08] logMAR) and low myopes (− 0.02 ± 0.08 logMAR) were similar (P = 0.060), and with similar fixation deviation (5.0 ± 2.2 pixels vs 5.3 [3.6] pixels; P = 0.689). High myopes had poorer fixation stability than low myopes (TRR: 10.2 pixels vs 7.5 pixels; CV: 65% vs 54%, respectively). The worst fixation stability occurred when high myopes were corrected using the auto-focus system (TRR: 12.5 pixels, CV: 72%). The difference in VD and PD was within 1 mm−1 and 1%, respectively. The FAZ area was similar. Difference in OCTA metrics was small in each refractive group (< 1 mm−1 in VD, and < 2% in PD). High myopes had more stable fixation when corrected when wearing contact lenses. Subjects with good contact lens corrected visual acuity should wear their contact lenses during OCTA measurements.

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Section: Introductionmentioning

confidence: 86%

Fixation stability and deviation in optical coherence tomography angiography using soft contact lens correction in myopes

Lam

Lau

Wong

et al. 2021

Sci Rep

View full text Add to dashboard Cite

show abstract

“…Their study included 20 eyes from only 12 patients. Aviram et al 12 did not nd any difference in OCT image quality nor macular thickness results with and without contact lens wear. However, subjects had only low to moderate amount of myopia.…”

Section: Introductionmentioning

confidence: 86%

Fixation Stability and Deviation in Optical Coherence Tomography Angiography Using Soft Contact Lens Correction in Myopes

Lam

Lau

Wong

et al. 2021

Preprint

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ObjectiveTo compare fixation deviation and stability with soft contact lens correction and device built-in auto-focus system during optical coherence tomography angiography (OCTA).MethodsThis observational study measured OCTA metrics first with contact lens correction, followed by removal of contact lenses, using the device auto-focus system at a University Optometry Clinic, Hong Kong. All participants were habitual soft contact lens wearers with either low or high myopia. OCTA measurements were obtained using a spectral domain OCTA. Fixation deviation was distance (in pixels) of the fovea to the center of the OCTA measurement grid. Fixation stability was test-retest repeatability (TRR) and coefficient of variation (CV) of fixation deviation from three consecutive OCTA measurements. OCTA metrics included vessel length density (VD), perfusion density (PD), and foveal avascular zone (FAZ) area. Averaged OCTA metrics were calculated from three measurements and compared between the two correction methods.ResultsThe mean ± SD spherical equivalent of 74 eyes from 74 myopes measured was -1.94D ± 0.75D in low myopes (n=37) and -7.97D ± 1.31D in high myopes (n=37). When corrected with contact lenses, visual acuities of high myopes (median [IQR], -0.06 [0.08] logMAR) and low myopes (0.02 ± 0.08 logMAR) were similar (P = 0.060), and with similar fixation deviation (5.0 ± 2.2 pixels vs 5.3 [3.6] pixels; P = 0.689). High myopes had poorer fixation stability than low myopes (TRR: 10.2 pixels vs 7.5 pixels; CV: 65% vs 54%, respectively). The worst fixation stability occurred when high myopes were corrected using the auto-focus system (TRR: 12.5 pixels, CV: 72%). The difference in VD and PD was within 1mm-1 and 1%, respectively. The FAZ area was similar.Conclusions High myopes had more stable fixation when corrected when wearing contact lenses. Subjects with good contact lens corrected visual acuity should wear their contact lenses during OCTA measurements.

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“…There are some contradictory reports about the influence of CL during analysis with optical coherence tomography. 24–26 This structural evaluation was performed to control other causes of poor quality of vision, which can present in these patients.…”

Section: Methodsmentioning

confidence: 99%

Keratoconus and Visual Performance with Different Contact Lenses

Marta¹,

Marques²,

Almeida³

et al. 2021

OPTH

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Purpose To analyze the visual performance in contact lens wearers with keratoconus. Methods A retrospective study including contact lens (CL) wearers was performed. The current best-corrected visual acuity with contact lens (BCVA-CL) and with spectacles (BCVA-S) correction, contrast sensitivity (CS) (by Metrovision-MonPack3 ® ), analysis of light scattering in the retina and vision break-up time (HD Analyzer ® ), and corneal tomography (Oculus Pentacam ® HR) were evaluated. Results This study included 96 eyes of 59 patients with Keratoconus. Rigid gas permeable contact lenses (RGPCL), hybrid contact lenses (HCL), and silicone hydrogel/hydrogel contact lenses (HGCL) were fitted in 67, 17, and 12 eyes, respectively. Dynamic objective scatter index (OSI) (p = 0.024), minimum OSI (p = 0.037) and maximum OSI (p = 0.040) were significantly better with RGPCL and worse with HGCL. Mean CS in photopic conditions was significantly worse with HGCL and better with HCL (p = 0.006), without differences in mesopic conditions (p = 0.121). RGPCL wearers showed a higher mean K (p = 0.020), and a lower corneal thickness at the thinnest point (p=0.011). Conclusion Visual quality varied significantly with different types of CL. Although RGPCL was fitted in patients with worse Pentacam tomographic parameters, RGPCL was associated with a better dynamic visual quality.

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The effect of contact lens wear on retinal spectral domain optical coherence tomography

Cited by 5 publications

References 39 publications

Fixation stability and deviation in optical coherence tomography angiography using soft contact lens correction in myopes

Fixation stability and deviation in optical coherence tomography angiography using soft contact lens correction in myopes

Fixation Stability and Deviation in Optical Coherence Tomography Angiography Using Soft Contact Lens Correction in Myopes

Keratoconus and Visual Performance with Different Contact Lenses

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