Effects of incision angle in construction of clear corneal cataract incision are studied with optical coherence tomography (OCT). A stable incision angle range is found to be existent for single-planed, clear corneal cataract incisions. When well pressurized, incision angles within this stable range result in well-apposed incision edges that resist gapping while incision angles falling outside ...

PERFORATING keratoplasty is found to be most successful in cases of small central corneal nebulae and keratoconus. In both these conditions the graft lies completely surrounded by healthy cornea. Where there is gross opacification extending widely throughout the thickness of the cornea and especially if degenerative changes are present, then a simple perforating graft rapidly becomes completely...

PERFORATING keratoplasty is found to be most successful in cases of small central corneal nebulae and keratoconus. In both these conditions the graft lies completely surrounded by healthy cornea. Where there is gross opacification extending widely throughout the thickness of the cornea and especially if degenerative changes are present, then a simple perforating graft rapidly becomes completely...

Purpose. To compare the surgically induced astigmatism from clear corneal and square posterior limbal incisions at the time of cataract surgery. Methods. Surgically induced astigmatism was calculated for a set of eyes after cataract surgery using a temporal 2.2 mm square posterior limbal incision. Results were compared to similar available data from surgeons using clear corneal incisions of sim...

The thermal damage caused by 2.94-micron Er:YAG laser ablation of skin, cornea, aorta, and bone was quantified. The zone of residual thermal damage produced by normal-spiking-mode pulses (pulse duration approximately 200 microseconds) and Q-switched pulses (pulse duration approximately 90 ns) was compared. Normal-spiking-mode pulses typically leave 10-50 microns of collagen damage at the smooth...

OBJECTIVE To evaluate the safety and efficacy of a Q-switched neodymium:YAG (Nd:YAG) laser for removal of the human cataract. DESIGN A multicenter, prospective, noncomparative study. PARTICIPANTS A total of 100 consecutive eyes undergoing cataract extraction with the Dodick Photolysis, Q-switched Nd:YAG laser. MAIN OUTCOME MEASURE Corneal endothelial cell loss, visual acuity improvement, ...