|Year : 2022 | Volume
| Issue : 2 | Page : 608
Fine needle diathermy for reducing corneal vascularization prior to high-risk corneal grafts
Swetha Ravichandran, Radhika Natarajan
Department of Cornea and Refractive Surgery, Sankara Nethralaya, Medical Research Foundation, Chennai, Tamil Nadu, India
|Date of Web Publication||13-Apr-2022|
Sankara Nethralaya, Medical Research Foundation, 41, College Road, Chennai - 600 006, Tamil Nadu
Source of Support: None, Conflict of Interest: None
|How to cite this article:|
Ravichandran S, Natarajan R. Fine needle diathermy for reducing corneal vascularization prior to high-risk corneal grafts. Indian J Ophthalmol Case Rep 2022;2:608
|How to cite this URL:|
Ravichandran S, Natarajan R. Fine needle diathermy for reducing corneal vascularization prior to high-risk corneal grafts. Indian J Ophthalmol Case Rep [serial online] 2022 [cited 2022 Jun 29];2:608. Available from: https://www.ijoreports.in/text.asp?2022/2/2/608/342904
Fine-needle diathermy (FND) is used to occlude corneal neovascularization before penetrating keratoplasty in high-risk grafts such as healed viral keratitis [Figure 1]a, lipid keratopathy, and failed graft with stromal vessels., Monopolar cautery is applied over a needle directed parallel to large vessels and perpendicular to tufts of smaller vessels, minding the depth. Coagulation of corneal collagen occludes discreet vessels, which can happen quickly over an existing scar. Transient whitening, intracorneal hemorrhages, and striae [Figure 1]b are reversible [Figure 1]c. Keratoplasty is best planned at 3–4 months [Figure 1]d before re-canalization occurs. FND is an inexpensive technique, used alone or as adjunct for angio-regression to enhance corneal graft survival.
|Figure 1: Composite picture showing (a) healed viral keratitis with corneal neovascularization; (b) whitening during FND; (c) regression of vessels at 3 months follow-up; (d) penetrating keratoplasty at 4 months following FND under prophylactic dose of oral acyclovir cover|
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