The change in axial length in the pseudophakic eye compared to the unoperated fellow eye in children with bilateral cataracts

Objective. To observe the fellow eye in patients undergoing surgery on one eye for treating myopic traction maculopathy.Methods. 99 fellow eyes of consecutive patients who underwent unilateral surgery to treat MTM were retrospectively evaluated. All patients underwent thorough ophthalmologic examinations, including age, gender, duration of follow-up, refraction, axial length, intraocular pressure, lens status, presence/absence of a staphyloma, and best-corrected visual acuity (BCVA). Fundus photographs and SD-OCT images were obtained. When feasible, MP-1 microperimetry was performed to evaluate macular sensitivity and fixation stability.Results. At an average follow-up time of 24.7 months, 7% fellow eyes exhibited partial or complete MTM resolution, 68% stabilized, and 25% exhibited progression of MTM. Of the 38 eyes with “normal” macular structure on initial examination, 11% exhibited disease progression. The difference in progression rates in Groups 2, 3, and 4 was statistically significant. Refraction, axial length, the frequency of a posterior staphyloma, chorioretinal atrophy, initial BCVA, final BCVA, and retinal sensitivity all differed significantly among Groups 1–4.Conclusions. Long axial length, chorioretinal atrophy, a posterior staphyloma, and anterior traction contribute to MTM development. Patients with high myopia and unilateral MTM require regular OCT monitoring of the fellow eye to assess progression to myopic pre-MTM. For cases exhibiting one or more potential risk factors, early surgical intervention may maximize the visual outcomes.

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Differences in Axial Length and IOL Power Based on Alternative A-Scan or Fellow-Eye Biometry in Macula-Off Rhegmatogenous Retinal Detachment Eyes

Ophthalmology and Therapy ◽

10.1007/s40123-021-00439-x ◽

2021 ◽

Author(s):

Rui Liu ◽

Hongrong Li ◽

Qingchen Li

Keyword(s):

Retinal Detachment ◽

Axial Length ◽

Rhegmatogenous Retinal Detachment ◽

Fellow Eye ◽

Iol Power

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Differences in Axial Length and IOLs Power Basing on Alternative A-Scan or Fellow-Eye Biometry in Macular-Off Rhegmatogenous Retinal Detachment Eyes

10.21203/rs.3.rs-252317/v1 ◽

2021 ◽

Author(s):

Rui Liu ◽

Hongrong Li ◽

Qingchen Li

Keyword(s):

Retinal Detachment ◽

Axial Length ◽

Rhegmatogenous Retinal Detachment ◽

Silicone Oil ◽

Power Prediction ◽

Fellow Eye ◽

Lens Extraction ◽

Silicone Oil Tamponade ◽

The Mean ◽

The Difference

Abstract We observe the potential refractive error basing on alternative A-scan ultrasound and fellow-eye biometry for phacovitrectomy in phakic macula-off rhegmatogenous retinal detachment (RRD) eyes, when IOLMaster fails to obtain data. Vitrectomy without lens extraction was performed for RRD repair. Preoperative axial length was measured using alternative A-scan ultrasound (AL-US). Postoperative axial length in eyes with silicone oil tamponade (AL-SO) and fellow-eye biometry (AL-FE) were obtained using IOLMaster. AL-US, AL-FE and AL-SO were 25.39 ± 2.14 mm, 25.85 ± 2.16 mm and 26.08 ± 2.53 mm, respectively. The Bland-Altman agreements among AL-US, AL-FE and AL-SO were well (95.5%, 21/22 of cases were in LoA). The mean IOLs power calculated using AL-US (Power-US) was 16.81 ± 7.19 D, using AL-FE (Power-FE) was 14.74 ± 6.95 D, and using AL-SO (Power-SO) was 13.54 ± 8.32 D. The difference between AL-US and AL-SO was significant (P < 0.05), while that between AL-FE and AL-SO was not (P > 0.05). The difference between Power-US and Power-SO was significant (P < 0.05), while that between Power-FE and Power-SO was not (P > 0.05). It showed that the alternative A-scan ultrasound leads to significant differences in axial length and IOLs power prediction, while fellow-eye biometry provided similar measurements compared with those of silicone oil-filled eyes after RRD repair.

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Multifocal Orthokeratology versus Conventional Orthokeratology for Myopia Control: A Paired-Eye Study

Journal of Clinical Medicine ◽

10.3390/jcm10030447 ◽

2021 ◽

Vol 10 (3) ◽

pp. 447

Author(s):

Martin Loertscher ◽

Simon Backhouse ◽

John R. Phillips

Keyword(s):

Visual Acuity ◽

Axial Length ◽

Length Change ◽

Fellow Eye ◽

Eye Growth ◽

Treatment Zone ◽

Ocular Biometry ◽

Center Distance ◽

Myopia Control ◽

Posterior Cornea

We conducted a prospective, paired-eye, investigator masked study in 30 children with myopia (−1.25 D to −4.00 D; age 10 to 14 years) to test the efficacy of a novel multifocal orthokeratology (MOK) lens compared to conventional orthokeratology (OK) in slowing axial eye growth. The MOK lens molded a center-distance, multifocal surface onto the anterior cornea, with a concentric treatment zone power of +2.50 D. Children wore an MOK lens in one eye and a conventional OK lens in the fellow eye nightly for 18 months. Eye growth was monitored with non-contact ocular biometry. Over 18 months, MOK-treated eyes showed significantly less axial expansion than OK-treated eyes (axial length change: MOK 0.173 mm less than OK; p < 0.01), and inner axial length (posterior cornea to anterior sclera change: MOK 0.156 mm less than OK, p < 0.01). The reduced elongation was constant across different baseline progression rates (range −0.50 D/year to −2.00 D/year). Visual acuity was less in MOK vs. OK-treated eyes (e.g., at six months, MOK: 0.09 ± 0.01 vs. OK: 0.02 ± 0.01 logMAR; p = 0.01). We conclude that MOK lenses significantly reduce eye growth compared to conventional OK lenses over 18 months.

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Differences in Axial Length and IOLs Power Basing on Alternative A-Scan or Fellow-Eye Biometry in Macular-off Rhegmatogenous Retinal Detachment Eyes

10.21203/rs.3.rs-115392/v1 ◽

2020 ◽

Author(s):

Rui Liu ◽

Hongrong Li ◽

Qingchen Li

Keyword(s):

Retinal Detachment ◽

Axial Length ◽

Prediction Error ◽

Rhegmatogenous Retinal Detachment ◽

Silicone Oil ◽

Fellow Eye ◽

Lens Extraction ◽

Significant Difference ◽

Silicone Oil Tamponade ◽

The Difference

Abstract Background: To observe the potential refractive prediction error basing on alternative A-scan ultrasound and fellow-eye biometry for phacovitrectomy in macula-off rhegmatogenous retinal detachment (RRD) eyes, when the optic biometry IOLMaster fails to obtain data.Methods: Phakic macula-off RRD eyes without axial length (AL) measured using IOLMaster were included. Vitrectomy with silicone oil tamponade but not lens extraction was performed. Preoperative AL was measured using A-scan ultrasound, and postoperative AL, as well as fellow-eye biometry, was obtained using IOLMaster. The IOLs power was calculated according to preoperative A-scan, postoperative IOLMaster and fellow-eye AL.Results: AL measured by alternative A-scan (AL-US) was 25.39±2.14 mm, and AL of fellow-eyes (AL-FE) was 25.85±2.16 mm, and AL in eyes with silicone oil tamponade (AL-SO) was 26.08±2.53 mm. The Bland-Altman agreements among AL-US, AL-FE and AL-SO were well (95.5%, 21/22 of cases were in LoA). The mean IOLs power calculated using AL-US (Power-US) was 16.81±7.19 D, using AL-FE (Power-FE) was 14.74±6.95 D, and using AL-SO (Power-SO) was 13.54±8.32 D. The difference between AL-US and AL-SO was significant (P<0.05), while that between AL-FE and AL-SO was not (P>0.05). The difference between Power-US and Power-SO was significant (P<0.05), while that between Power-FE and Power-SO was not (P>0.05).Conclusion: The alternative A-scan ultrasound leads to a significant difference in AL and prediction error in IOLs power, while fellow-eye biometry provided similar results compared with those of silicone oil-filled eyes after RRD repair.

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