Optical coherence tomography evaluation of the corneal cap and stromal bed features after laser in situ keratomileusis for high myopia and astigmatism

Maldonado, Miguel J.; Ruiz-Oblitas, Lilian; Munuera, Juan M; Aliseda, Daniel; García‐Layana, Alfredo; Moreno-Montañés, Javier

doi:10.1016/s0161-6420(99)00022-6

Cited by 186 publications

(89 citation statements)

References 33 publications

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“…Spain, 19 Denmark, 20,21 Holland, 22 Turkey, 23 Israel, 24 Canada, 25 New Zealand, 26 India, 27,28 and Rwanda. 29 According to Doughty and Zaman, 30 who reviewed and performed a metaanalysis of more than 300 articles, if we consider that the normal cornea averages 53670.031 mm, CCT was found to be significantly thinner (mean CCT values of less than 530 mm) in African-American, Mongolian, and Indian patients than in Caucasian, Asian, Hispanic, or European patients.…”

Section: 18mentioning

confidence: 99%

Central corneal thickness and its relationship to the patient's origin

Lifshitz

Levy

Rosen

et al. 2005

Eye

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Objectives To report central corneal thickness (CCT) measurements on patients requesting refractive surgery and to search for possible associations between CCT and patient's origin, age, sex, and preoperative data. Patients of North African origin were significantly older than patients of other origins (P ¼ 0.028). No differences were found when comparing for sex, intraocular pressure, refractive status, and keratometry. When multivariate analysis was performed patient's origin was the only independently associated factor associated with CCT. Conclusions This is the first work in reporting lower CCT in people of North African origin examined in a refractive surgery centre. Studies from similar populations are needed to confirm our results.

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Section: 18mentioning

confidence: 99%

Central corneal thickness and its relationship to the patient's origin

Lifshitz

Levy

Rosen

et al. 2005

Eye

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“…O estado de hidratação ocular e a qualidade das lâminas são fatores conhecidos que influenciam nestes parâmetros (4,6,11) . Muitos estudos de espessura de lamela corneana pediculada observaram que as espessuras efetiva das lamelas estavam abaixo das programadas (9,(12)(13)(14)(15)(16)(17)(18)(19) . E outros poucos observaram que as espessuras efetivas correspondiam às espessuras programadas (20)(21)(22)(23) .…”

Section: Discussionunclassified

“…Pode haver diferenças nas aferições entre avaliações realizadas in vivo ou in vitro, pela diferente elasticidade e hidratação entre tecidos vivos e tecido sem vitalidade. Neste estudo, a espessura efetiva da lamela corneana pediculada e seu diâme-tro foram correspondentes à programação, e, os respectivos desvios-padrão inferiores à maioria dos outros estudos semelhantes com outros MKs (9,(12)(13)(14)(15)(16)(17)(18)(19)(20)(21)(22)(23) . A avaliação dos MKs é de grande importância pois a qualidade óptica da cirurgia refrativa é muito dependente da perfeita confecção da lamela corneana pediculada.…”

Section: Discussionunclassified

Avaliação da qualidade de corte do microcerátomo Masyk® na confecção de lamela corneana pediculada em olhos humanos de Banco de Olhos

Victor¹,

Alves²,

Nosé³

2006

Arq. Bras. Oftalmol.

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“…[20][21][22][23][24][25] According to manufacturers, flap thickness should ideally fall within 10-15% of the intended thickness. However, flap thickness shows often a wide variability, 3-5,21,22 thus intraoperative pachymetry is considered crucial for its measurement.…”

Section: Discussionmentioning

confidence: 99%

The effect of flap thickness on the visual and refractive outcome of myopic laser in situ keratomileusis

Eleftheriadis

Prandi

Diaz-Rato

et al. 2004

Eye

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Aims To study the effect of flap thickness on the visual and refractive outcome of myopic laser in situ keratomileusis (LASIK) surgery. Methods A total of 196 myopic eyes with spherical equivalent (SE) from À2.00 to À5.00 dioptres which underwent LASIK were studied retrospectively. Uncorrected visual acuity (UCVA), best-corrected visual acuity (BCVA) and manifest refraction were measured up to 6 months postoperatively. Logistic and linear regression analyses were used to examine the correlation of flap thickness to visual and refractive outcomes, postoperative complications and enhancement rate. Results UCVA at 1 week and 1 month, but not at 1 day and at 6 months (P40.05), were negatively correlated to flap thickness (Po0.05). BCVA was unrelated to flap thickness (P40.05). At 1-month post-LASIK sphere and cylinder were not related to flap thickness (P40.05), but spherical equivalent was negatively correlated (Po0.05). Significant negative correlations with the sphere and SE were noticed at 6 months for the eyes not requiring enhancements (Po0.05). Flap thickness had no significant relationship to postoperative complications (P40.05) and no significant predictive value on the rate of enhancement procedures or the efficacy, safety and predictability indices (P40.05). Conclusions In myopic LASIK thinner flaps are associated with faster visual recovery and less myopic SE, but the BCVA and the final UCVA are independent of flap thickness. Postoperative complications are unrelated to flap thickness. Flap thickness does not affect the efficacy, safety and predictability, or the rate of enhancement procedures.

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Optical coherence tomography evaluation of the corneal cap and stromal bed features after laser in situ keratomileusis for high myopia and astigmatism

Cited by 186 publications

References 33 publications

Central corneal thickness and its relationship to the patient's origin

Central corneal thickness and its relationship to the patient's origin

Avaliação da qualidade de corte do microcerátomo Masyk® na confecção de lamela corneana pediculada em olhos humanos de Banco de Olhos

The effect of flap thickness on the visual and refractive outcome of myopic laser in situ keratomileusis

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