Clinical results of arcuate incisions to correct astigmatism

Abstract

The predictability and safety of arcuate incisions are reflected in these results.

Incisões relaxantes limbares durante a cirurgia de catarata: resultados após seguimento de um ano

“…A busca da correção do astigmatismo, concomitante com a redução do grau esférico, durante a cirurgia de catarata, tem feito surgir várias técnicas (12)(13)(14)(15)(16) . Estas, no entanto, devem visar à diminuição do erro refrativo sem alterar as qualidades ópticas da córnea (6) , não levar ao surgimento de complicações e, ainda, alcançarem um efeito estável e duradouro.…”

“…As incisões relaxantes corneanas apresentam grande oscilação de seus resultados e flutuação pós-operatória freqüente na refração (16) , podendo levar ao aparecimento de complicações como diplopia, aniseiconia e alteração do senso espacial (12) .…”

Long-term refractive stability following combined astigmatic keratotomy and phakoemulsification

“…For many years, cataract surgeons have used corneal relaxing incisions to reduce significant corneal astigmatism. A number of studies have demonstrated the effectiveness of modern techniques such as LRIs and astigmatic keratotomy [2][3][4][5][6][7][8][9][10][11][12][13][14][15][16].…”

“…Several techniques have been developed to surgically reduce astigmatism. Horizontal and, later, arcuate corneal incisions were introduced to good effect and are now commonly termed astigmatic keratotomy [2][3][4][5][6][7][8][9][10][11][12][13]. A variety of nomograms have been devised to assist in determining the length of corneal incisions during astigmatic keratotomy, depending on the degree of astigmatism and the age of the patient.…”

Refractive surgery

“…As most series contain a mixture of causes of astigmatism direct comparison of results is difficult, but the general trend seems to be towards reducing astigmatism by between 50% and 70%. Most surgeons use a nomogram (examples Buzard et al  22 and Lindstrom23) to determine the variables of surgery, but some (myself included) prefer to use some form of intraoperative keratoscopy or keratometry 23. Most surgeons use corneal markers with a free hand technique but automated instruments have been developed to make the arcuate incisions 24…”