Excimer laser photorefractive keratectomy: first Australian series.
Explore the source record for details and available documents.
Cornea↗
Biomedical subjects
M A Lawless
Publications and source records attributed to M A Lawless.
Corneal biopsy in microbial keratitis.
Presumed microbial keratitis in the absence of a specific microbiological diagnosis is a particularly difficult clinical problem. Corneal biopsy may provide the diagnosis when corneal scrapings have been negative. We present two cases in which corneal biopsy was helpful and discuss the role of corneal biopsy in the management of chronic keratitis.
Acanthamoeba Keratitis↗
The role of penetrating keratoplasty and epikeratoplasty in the surgical management of keratoconus.
A series of 86 penetrating keratoplasties for keratoconus was analysed. The surgery, using an 8.2 mm donor cornea into an 8.0 mm recipient opening, was performed between January 1983 and January 1986. The donor cornea was secured by two opposing continuous sutures, placed at full corneal thickness under surgical keratometry control. Both sutures were removed on average 30 weeks after surgery. The mean postoperative sutures out astigmatism was 5.4 dioptres (range 0 to 19.0), and following astigmatism surgery in 17 eyes, the mean astigmatism was 4.3 dioptres (range 0 to 10.5). Graft reaction occurred in 11.6% but was cleared medically in all cases and no corneas were lost. One month after suture removal, with spectacle correction, 45.5% of the primary group achieved vision of 6/6, 90.7% were 6/9 or better, and 97.7% were 6/12 or better. Comparing these results with recently published data on epikeratoplasty, for the treatment of keratoconus, it is evident that penetrating keratoplasty offers the best means whereby the eye can obtain its full visual potential.
Adolescent↗
Penetrating keratoplasty for keratoconus.
A series of 86 penetrating keratoplasties for keratoconus were analyzed. The surgery, using an 8.2 mm donor cornea into an 8.0 mm recipient opening, was performed over the period January 1983 to January 1986 by one surgeon. The donor cornea was secured by two opposing continuous sutures, placed at full corneal thickness under surgical keratometry control. Both sutures were removed at an average 30 weeks after surgery. The mean postoperative sutures-out astigmatism was 5.4 diopters (range 0-19.0 diopters) and following secondary astigmatism surgery in 17 eyes, the mean group astigmatism was 4.3 diopters (range 0-10.5 diopters). Although graft reaction occurred in 11.6% of cases it was cleared medically and did not affect final vision results. One month after suture removal, with spectacle correction, 45.5% of the primary group saw 20/20, 90.7% 20/30 or better, and 97.7% 20/40 or better. Comparing these results with recently published data on epikeratophakia for the treatment of keratoconus, it is evident that penetrating keratoplasty offers these usually young patients a better chance for recovery of useful industrial acuity.
Astigmatism↗