We analyzed an astigmatism and an uncorrected visual acuity in 235 eyes for 6 months following sutureless cataract surgery(167 eyes) with 5 mm(Group 1), 6 mm(Group 2), and 7 mm(Group 3) incision lengths at 2.5 mm posteriorly from the corneoscleral limbus, and shoelace sutured cataract surgery(68 eyes) with 7 mm(Group 4) incision length at 1 mm posteriorly from the corneoscleral limbus performed by one surgeon. In three groups of sutureless cataract surgery, the surgically induced corneal astigmatisms were stable after one month postoperatively, but decreasing the length of incision substantially reduced the astigmatic changes(p>0.05), the astigmatic swings(p>0.05) and the astigmatic ranges. In comparison to sutured cataract surgery with 7 mm incision length, sutureless cataract surgery with same incision length reduced the astigmatic changes(p<0.01), reduced the astigmatic swings(p<0.01) and narrowed the astigmatic ranges and also was stabilized earlier. The shorter the length of incision in sutureless cataract surgery, the higher the incidence of an uncorrected visual acuities of 20/40 or better(p>0.05) was noted. In comparison to sutured catarct surgery with 7 mm incision length, suture less cataract surgery with same incision length had higher incidence of an uncorrected visual acuities of 20/40 or better(p<0.01). The tesults indicate that smaller incision length in sutureless cataract surgery was associated with a lower surgically induced astigmatism(p>0.05) and a better uncorrected visual acuity(p>0.05). And sutureless cataract surgery rather than sutured cataract surgery was associated with a lower surgically induced astigmatism(p<0.01), an earlier stability, and a better uncorrected visual acuity(p<0.01).

Corneoscleras were stored in 4 degrees C, 98% glycerin and were examined histologically at various storage periods. There were no remarkable pathologic changes in the stainability or arrangement of collagen fibers in stored corneoscleras from one month to 33 months. 12 eyes of 12 patients underwent tectonic or therapeutic keratoplasty with them. The integrity of the globe was maintained in all cases and vision improved in three cases without the second operation. One case achieved visual improvement by optical keratoplasty. In four cases, the vision may be improved by the second operation, such as optical keratoplasty and keratoprosthesis.