Volume: 55 Issue: 2
Year: 2024, Page: 460-464, Doi: https://doi.org/10.51966/jvas.2024.55.2.460-464
Received: Oct. 14, 2021 Accepted: Dec. 28, 2023 Published: June 30, 2024
A total of 13 corneas affected with pigmentary keratitis were selected for the study. Corneal clarity was assessed by visual examination and direct ophthalmoscope.Central and limbal corneal thickness was recorded with an Ultrasound pachymeter (PachPen). Pigmentation grade and mean pigment density (MPD) were assessed in all corneas. Isolation of bacterial organisms was performed through a corneal swab from all the corneas affected with pigmentary keratitis. Out of the 13 corneal swabs, the major organism isolated was staphylococcus aureus. The mean value of pigmentation grade was 55.3 ± 5.84 and the mean pigment density was 2.3 ± 0.24.
Keywords: Corneal pigmentation, PachPen, pigmentation grade, mean pigment density
Alario, A.F. and Pirie, C.G., 2014. Central corneal thickness measurements in normal dogs: a comparison between ultrasound pachymetry and optical coherence tomography. Vet. Ophthalmol. 17: 207-211.
Allgoewer, I. and Hoecht, S. 2010. Radiotherapy for canine chronic superficial keratitis using soft X-rays (15 kV). Vet. Ophthalmol. 13: 20-25.
Anoop, S., Devanand, C.B., Syam, K.V., John Martin, K.D., Ajithkumar, S., Gleeja, L. and Aravindha Ghosh, K.N.A. 2015a. Pigmentary keratitis in dogs. Indian J. Vet. Res. 24: 31-33.
Anoop, S., Devanand, C.B. and Syam, K.V., 2015b. Assessment of grading and isolation of bacterial organisms in canine pigmentary keratitis. Int. J. Adv. Res. 3: 440-443.
Anoop, S., Devanand, C.B., Syam, K.V., John Martin, K.D., Ajithkumar, S., Aravindha Ghosh, K.N.A. and Gleeja, L. 2016. Pigmentary keratitis in dogs – a study on incidence in 83 corneas. Malaysian J. Vet. Res. 7: 15-20
Antonia, N.A., Narayanan, M.K., Anoop, S., Devanand, C.B. and Martin, J., 2014. Occurrence of ophthalmic disorders in dogs. Indian J.Vet. Res. 23: 21-24
Appelboam, H., 2016. Pug appeal: brachycephalic ocular health. Companion Animal. 21 :29-36.
Aswathy, M.A., Anoop, S., John, M.K.D., Laiju M.P., Vasudevan, V.N. and Ashlin, M. 2023. Lamellar keratoplasty using decellularised porcine cornea as an acellular scaffold graft for surgical management of deep corneal ulcer in a dog. J. Vet. Anim. Sci. 54: 600-603
Azoulay, T., 2014. Adjunctive cryotherapy for pigmentary keratitis in dogs: a study of 16 corneas. Vet. Ophthalmol. 17: 241- 249.
Costa, J., Steinmetz, A. and Delgado, E., 2021. Clinical signs of brachycephalic ocular syndrome in 93 dogs. Irish Vet. J. 74: 1-8.
Das, S., Mishra, R., Rath, P.K., Mishra, B., Mishra, C. and Behera, S.S., 2019. Antimicrobial Sensitivity Profile of Eye Infection in Dogs. Int. J. Curr. Microbiol. Appl. Sci. 8: 505-511.
Hewitt, J.S., Allbaugh, R.A., Kenne, D.E. and Sebbag, L., 2020. Prevalence and antibiotic susceptibility of bacterial isolates from dogs with ulcerative keratitis in Midwestern United States. Front. Vet. Sci. 7: 583965.
Hoehn, A.L., Thomasy, S.M., Kass, P.H., Horikawa, T., Samuel, M., Shull, O.R., Stewart, K.A. and Murphy, C.J., 2018. Comparison of ultrasonic pachymetry and Fourier-domain optical coherence tomography for measurement of corneal thickness in dogs with and without corneal disease. Vet. J. 242: 59-66.
Labelle, A.L., Dresser, C.B., Hamor, R.E., Allender, M.C. and Disney, J.L., 2013. Characteristics of, prevalence of, and risk factors for corneal pigmentation (pigmentary keratopathy) in Pugs. J. Am. Vet. Med. Assoc. 243: 667-674.
Sarangom, S.B., Venugopal, S.K., Martin, K.J., Narayanan, M.K., Mini, M. and Anoop, S., 2014. Incidence and predisposing factors of keratopathies in Chinese Pugs. Indian Vet. J. 91: 41-43.
Thajunnisa, A.S., Sainulabdeen, A., Dileepkumar, K.M., Philip, L.M., Vasudevan, V.N. and Devanand, C.B., 2020. Comparative evaluation of decellularized bovine omentum alone and in combination with mitomycin-C in the management of corneal injuries in dogs. Vet. World. 13: 2401.
Venugopal, S.K., 2013. Management of exposure keratopathy and corneal ulceration in buphthalmic dogs. Indian J. Canine Pract. 5: 28.
Villavicencio, O., Belin, M.W., Ambrósio Jr, R. and Steinmueller, A., 2014. Corneal pachymetry: new ways to look at an old measurement. J. Cataract Refract. 40: 695-701.
Wongchaisuwat, N., Metheetrairat, A., Chonpimai, P., Nujoi, W. and Prabhasawat, P., 2018. Comparison of central corneal thickness measurements in corneal edema using ultrasound pachymetry, Visante anterior-segment optical coherence tomography, Cirrus optical coherence tomography, and Pentacam Scheimpflug camera tomography. Clin. Ophthalmol. 12: 1865- 1873.
© 2024 Shareef et al. This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Shareef, M.S., Anoop, S., Ramankutty, S., Philip, L.M., Martin, J.K.D., Venugopal, S.K. and Harshan, H.M. 2024. Assessment of corneal clarity, corneal thickness, grading and isolation of bacterial organisms in canine pigmentary keratitis. J. Vet. Anim. Sci. 55(2):460-464
DOI: https://doi.org/10.51966/jvas.2024.55.2.460-464