Corneal grafting for the treatment of feline corneal sequestrum: a retrospective study of 18 eyes (13 cats)

Abstract

Keratoplasty is an effective surgical treatment for FCS. The donor tissue provides excellent tectonic support to the affected corneas, with good visual and cosmetic outcome.

Effects of intracameral injection of epinephrine and 2% lidocaine on pupil diameter, intraocular pressure, and cardiovascular parameters in healthy cats

“…A previous study conducted in cats has reported that tropicamide induce pupil dilation greater than 10 mm for more than 2 hours . Therefore, we aimed to compare the maximal pupil diameter (MPD) reached in the treatments groups with the MPD reached by a topical cholinergic agent that is commonly prescribed for intraocular procedures . In humans and rabbits, the intracameral injection of 0.2‐0.3 mL of 1% lidocaine provided similar or even superior pupil dilation when compared to that obtained with the use of topical mydriatics.…”

“…The ideal protocol for pupil dilation should induce fast, intense, and stable mydriasis with a duration of at least 2 to 3 hours, while minimizing adverse effects . Topical mydriatic eyedrops are currently the standard method for routine pupil dilation in cats that must undergo corneal and intraocular surgeries . The main disadvantages of mydriatic eyedrops are related to delayed local effect .…”

“…Prostaglandins appear to be released when the anterior chamber is entered surgically and initiate strong miotic activity . Thus, maximum mydriasis is also essential when performing keratoplasties for the treatment of corneal sequestrum and corneal perforation . Under such circumstances, drug‐induced irido‐cycloplegia helps to reduce the pain associated with preoperative anterior uveitis, and pupil dilatation reduces the likelihood of posterior synechiae formation …”

“…In cats, preoperative pupil dilatation for corneal and intraocular surgeries is achieved with 1% atropine, 1% cyclopentolate, and 0.5% tropicamide . However, intraoperative miosis is a complication that may occur in dogs and humans, resulting in inadequate equatorial lens exposure during lensectomy.…”

Corneal collagen cross‐linking following superficial keratectomy as treatment for corneal endothelial cell dystrophy in dogs: Preliminary clinical study

“…PK is not presently routinely performed in dogs and uncommonly used for visual rehabilitation. Most corneal transplants are applied as tectonic grafts in dogs …”