Prospective Evaluation of Myopic Keratomileusis

Swinger, Casimir A.; Barker, Barbara A.

doi:10.1016/s0161-6420(84)34237-3

Cited by 74 publications

(4 citation statements)

References 5 publications

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“…Isto se deve, nos míopes, ao fato de proporcionarmos uma diminuição da minificação da imagem retiniana corrigindo a miopia no plano corneano 32 . A grande maioria dos relatos faz esta comparação (acuidade visual com óculos pré e pós-operatório), entretanto ao compararmos a qualidade visual pré-operatória com lentes de contato rígidas e a pós-operatória com óculos, especialmente à noite e dos altos míopes e hipermétropes, observamos que vários pacientes relatam perda em sua capacidade visual, diminuição da sensibilidade de contraste e halos ao redor das luzes 4,10,33 .…”

Section: Discussionunclassified

Lasik para correção de miopia, astigmatismos e hipermetropia

Kwitko¹,

Marinho²,

Raskin³

et al. 2000

Arq. Bras. Oftalmol.

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Objetivo: Relata a experiência em nossos primeiros 329 olhos operados com a técnica de Lasik para miopia, astigmatismo e hipermetropia, com um mínimo de 6 meses de seguimento pós-operatório.Métodos: Foram analisados retrospectivamente os resultados de Lasik em 110 olhos com baixa miopia (grupo I), 113 com miopia moderada (grupo II), 47 com alta miopia (grupo III), 139 com astigmatismo baixo (grupo IV), 31 com astigmatismo moderado (grupo V), 27 com baixa hipermetropia (grupo VI) e 25 com hipermetropia moderada (grupo VII).Resultados Foram necessárias re-intervenções em 4,9% dos olhos operados (3,4% para hipocorreção, 0,6% hipercorreção, e 0,9% para limpeza da interface). Perda de uma ou duas linhas na tabela de Snellen ocorreu em 3,7% dos míopes baixos, 12,4% dos míopes moderados, 0% dos míopes altos, 18,5% dos baixos hipermétropes, e 20% dos hipermétropes moderados. Outras complicações, raras, foram as seguintes: corte completo do disco, entretanto sem perda do disco (0,3%), corte incompleto (0,3%), corte irregular por perda de sucção do anel (0,3%), astigmatismo regular induzido (7,4%), descentração da foto-ablação induzindo astigmatismo irregular (0,3%), opacidades e fragmentos na interface (0,6%), estrias importantes do disco (0,3%).Conclusões: A cirurgia de Lasik demonstra ser segura, eficaz, e previsível para uma grande parte das ametropias. Lasik for myopia, astigmatism and hyperopia INTRODUÇÃOA evolução da cirurgia refrativa corneana chegou a uma fase em que a pequena remodelação do estroma corneano, alterando a curvatura da córnea através da técnica de ceratomileusis in situ associada à foto-ablação com o Excimer Laser (Lasik) tem permitido correção de diversos erros de refração.

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Section: Discussionunclassified

Lasik para correção de miopia, astigmatismos e hipermetropia

Kwitko¹,

Marinho²,

Raskin³

et al. 2000

Arq. Bras. Oftalmol.

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“…It also had other disadvantages, such as slow recovery time, in part due to corneal oedema and de‐epithelialisation caused by dead keratocytes and damaged lamellar architecture from the freezing process . It was also associated with irregular astigmatism and corneal haze . Owing to these disadvantages, non‐freeze modifications were developed, such as the Barraquer‐Krumeich‐Swinger (BKS) non‐freeze technique.…”

Section: Keratomileusismentioning

confidence: 99%

Corneal refractive surgery: past to present

McAlinden

2012

Clinical and Experimental Optometry

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There have been many historical corneal refractive techniques and procedures developed over the years. From early techniques of radial keratotomy to modern excimer laser techniques, the field of refractive surgery is one of the most rapidly developing in ophthalmology. This review details the historical aspects of the many early techniques up to current techniques used on millions of eyes around the world.

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“…Disadvantages of the procedure include the creation of irregular astigmatism, loss of BCSVA, prolonged recovery of visual acuity, and large percentages of enhancements for undercorrection. 3,5 The surgical techniques discussed above are limited by the range of refractive error correction any one technique can achieve. Surgeons in general will use RK to correct for myopic refractive errors from 1.5 to 6 diopters and PRK from 2 to 6 diopters, while KMIS is used for myopic refractive errors above 6 diopters.…”

Section: Keratomileusis In Situmentioning

confidence: 99%

“…It involved using a microkeratome to remove a central, anterior corneal cap, freezing it, placing it on a lathe and reshaping it, and then suturing the thawed tissue back onto the corneal surface. 3,4 A simpler procedure known as keratomileusis in situ (KMIS) was introduced by Luis Ruiz, a student of Barraquer. 5 In this technique, two lamellar (parallel-faced), con-centric disks are removed from the central cornea, the second underlying excision being smaller in diameter than the first.…”

Section: Introductionmentioning

confidence: 99%

New method for reshaping the cornea

Littlefield¹,

Koepnick

Binder³

et al. 1997

J. Biomed. Opt.

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The optical theory behind a new technique for reshaping the cornea to correct refractive errors of the eye is presented. This technique is capable of excising both positive and negative meniscus (lenticular)-shaped tissues of predetermined optical power from the anterior cornea. The optical lens bending theory routinely used by optical designers to reduce the amount of spherical and comatic aberrations in a lens system is employed in this technique. This technique uses a microkeratome to remove a planoconvex, or planoconcaveshaped tissue from the cornea while the eye is in a deformed state. When the eye returns to its natural, undeformed state, a lenticular tissue of predetermined optical power has been removed, correcting for myopic or hyperopic refractive errors, respectively. An elementary introduction to the current surgical techniques used for the correction of refractive errors is presented. Meniscus cross sections of the excised tissues are shown to demonstrate the optical theory discussed.

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Prospective Evaluation of Myopic Keratomileusis

Cited by 74 publications

References 5 publications

Lasik para correção de miopia, astigmatismos e hipermetropia

Lasik para correção de miopia, astigmatismos e hipermetropia

Corneal refractive surgery: past to present

New method for reshaping the cornea

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