A Comparison between Corneal Topography and Keratometry in Midlimbal Incision Cataract Surgery

To determine amount of surgically induced outcome of 3.5mm clear corneal incisin, 30 eyes(30 patients) were evaluted retrospectively. Corneal curvature was measured using cmputerized videokeratography, and the induced astigmatism was calculated with using the Holladat-Cravy-Koch formula. The corneal flattening was significantly more prominent at distances of 0.5, 1.5 and 2.5mm along 90-degree meridian and 270 degree meridian at one week 1 month postoperatively but decreased at 6 months. Surgically induced astigmatism was -0.5D at one week, -0.12D at 1 month, and -0.13D at 6 month in groups using keratometry and in group using toography. At 1 month postoeratively surgically induced astigmatism in topography was statically sigmificant(p<0.05).

Autologous Simple Conjunctival Graft and Conjunctiva/Tenon Graft on Focal Scleromalacia

A retrospective review was done on 15 eyes of consecutive patients who presented to the Asan Medical Center with scleronecrosis between January 1993 and June 1996 was studies. Ten eyes were managed by autologous conjunctival graft(group 1) and others by autologous conjunctiva/tenon graft(group 2), followed over 9 months, and the outcome evaluated included symptoms and complications. All patients had scleronecrois size less than 3mm in diameter with foreign body sensation, tearing, and pain etc. In both group, the symptoms were improved after surgery. The complications were that first group was slippage of donor tissue in graft site in two eyes and focal hyperemia in all cases. Management of slippage was sucessfully performed by reoperation; focal hyperemia was gradually improved no other specific management. These results indicate that autologus conjunctiva and autologous conjunctiva/tenon graft may be effective for the treatment of small scleronecrosis.

Success Rate of Silicone Tube Intubation

It has been Known that silicone intubation may be an effective procedure for total or partial obstruction in infants of age one year or less, and the older the patient, the lower the success rate. We had performed silicone intubation on 40 eyes of 39 patients from january 1995 to May 1996, and they were divided into 3 groups according to age: group 1, 6 months to 6 years: group 2,6 to 16.: group 3, one 16 years. The success rate was 92.4% in groups 1 and 2, respectively: 83.3% ingroup 3. The success rate in patients with partial obstruction in group 3 was 100% In view of the results of the present study, silicone intubation may be in primary procedure for partial obstruction of lacrimal drainage system.