Our cat has a deep cut on its eyeball. Apparently the cornea has three layers and the cut has penetrated the top two. The vet has given us a regime of eyedrops (4 different kinds) as well as painkillers. The cat is fairly comfortable. There is an option for surgery but we're looking at a specialist and a cost of around £2,000 - £2,500 (no insurance but we do have £2,000 in a savings account for vets bills for our two cats). I have opted for eye drops and wait and see until we go back on Friday. Anyone else have direct experience of this? What was the outcome?