ABSTRACT
ABSTRACT A 27-year-old healthy man with a history of bilateral photorefractive keratectomy (PRK) enhancement after femtosecond laser in situ keratomileusis (LASIK) presented with decreased uncorrected distance visual acuity (UDVA) of 20/125 in the right eye (OD) and 20/300 in the left eye (OS) six months after PRK. Examination revealed bilateral dense subepithelial opacities. Both eyes (OU) were treated with superficial keratectomy combined with phototherapeutic keratectomy (PTK) and adjunctive application of mitomycin C 0.02%. At three months follow up UDVA was 20/30 OD and 20/25 OS. Superficial keratectomy combined with PTK seems to be a safe and efficient technique for treatment of dense subepithelial scar formation following PRK enhancement after LASIK.
RESUMO Um homem saudável de 27 anos de idade com história de aprimoramento com ceratectomia fotorrefrativa (PRK) bilateral, após Ceratomileuse Assistida por Excimer Laser In Situ (LASIK) com laser de femtossegundos, apresentou diminuição da acuidade visual à distância não corrigida (AVNC) de 20/125 no olho direito (OD) e 20/300 no olho esquerdo (OE) seis meses após PRK. O exame revelou opacidades subepiteliais densas bilaterais. Ambos os olhos (AO) foram tratados com queratectomia superficial combinada com ceratectomia fototerapêutica (PTK) e aplicação adjuvante de mitomicina C a 0,02%. Aos três meses de acompanhamento, o AVNC foi de 20/30 OD e 20/25 OE. A ceratectomia superficial combinada com PTK parece ser uma técnica segura e eficiente para o tratamento da formação densa de cicatrizes subepiteliais após o aprimoramento com PRK pós-LASIK.
Subject(s)
Humans , Male , Adult , Fibrosis/therapy , Photorefractive Keratectomy/adverse effects , Wound Healing , Fibrosis/etiology , Visual Acuity , Mitomycin/administration & dosage , Photorefractive Keratectomy/methods , Corneal Opacity/diagnosis , Corneal Opacity/etiology , Corneal Topography , Keratomileusis, Laser In Situ , Debridement , Corneal Surgery, Laser , Slit Lamp Microscopy , Myopia/surgeryABSTRACT
AIM:To evaluate the long-term clinical efficacy of Shotfile software for the myopia patients with presbyopia.METHODS:A total of 43 cases (82 eyes) over the age of 35 myopia patients were treated with laser corneal surgery in our hospital,added Shotfile software at the same time,and followed up for 3a.The uncorrected visual acuity(the distance and near vision),diopter change and visual satisfaction rate were observed at 1,2 and 3a after operation.RESULTS:At 1a after operation,there were 81 eyes (99％) with the uncorrected distance visual acuity reached the preoperative best corrected visual acuity,and 75 eyes (91％) with the uncorrected near visual acuity above 0.66,the average value of the spherical equivalent was (-0.64±0.63)D,the overall satisfaction rate was 91％.At 2a after operation,there were 79 eyes (96％) with the uncorrected distance visual acuity reached the preoperative best corrected visual acuity,and 69 eyes (84％) with the uncorrected near visual acuity above 0.66,the average value of the spherical equivalent was (-0.62±0.59) D,the overall satisfaction rate was 86％.At 3a after operation,There were 77 eyes (94％) with the uncorrected distance visual acuity reached the preoperative best corrected visual acuity,and 62 eyes (76％) with the uncorrected near visual acuity above 0.66,the average value of the spherical equivalent was (-0.55 ± 0.56) D,the overall satisfaction rate was 81％.Intraoperative or postoperative serious complications were not found in all the cases,1 eye of spherical equivalent with-10.0D was found-1.75D back after 1a,respected the willingness of patient for the second correction.CONCLUSION:Shotfile software for the patients myopia with presbyopia is safe and stable in the long-term clinical treatment,and the patient satisfaction is higher,but the near visual ability of some patients may be weakened with the prolongation of time,preoperative communication with patients should be fully.