Vet360 Vol 3 Issue 04 August 2016 - Page 27

OPTHALMOLOGY Exophthalmos An overview of common causes and treatment Dr Izak Venter BVSc MMedVet (Opthal) Johannesburg Animal Eye Hospital 44 Kingfisher Drive, Fourways, 2067 Tel: 011 465 1237 The purpose of this article is to describe the more common causes of exophthalmos and their treatment. The authors did not aim to supply a complete differential diagnosis list and also do not discuss the less common causes. There is very specific terminology used in ophthalmology which describes the position of the globe or size of the globe. These include: • Buphthalmos: Enlargement of the eye due to glaucoma. • Enophthalmos: Abnormal recession of the eye into the orbit. • Exophthalmos: Abnormal protrusion of the ^YX[ (H\\[N[[܈XXؙH\H\[و[X\HH[XYH[][XH܂[\[^YH[X[ۈ܈[[[X][ۋ(H\ΈXܛX[\[ۈوH^YX[^[ۙHܘ][[K\X[H\X]Y]][XK[^[Z[[[[[X[]HZ[[^YK\H\HH\وX\]Y\ٙX]\\X[H\YZY[\XYۛ\˂KHYX\\[Y[YX\\HHܛX[X[Y]\[\\H]H]H^YK\[[BX\[HY\[X]H\[[H^[[˂H][[ێ[\\و^[[\H[H[ܙH\\[H][[ۈوHؙK˂H\[ۈوH\^Y[Y\\YHœ\\HۈH]Y]H\HوH\^Y[Y \[X[Yۜ\[[[ۈ[\\›و\[[]\\]Y[H[^[[˂ H؜\[H]Y[Y]HXYH[™\XHۈHۛ]\[\HHܜ[][ۈ\\XX]H[H\[[Y]HY]\œ\[ Y JKKH^[Z[HHܘ[[\[]]Y\ΈH[][H^[Z[Y\^[[ۈوܘ[]H[YXHܘ][Y[ۋ\\[H^[Z[Y܈\\\\\[[\XH܂[[[X[ۜX^H\HHYYX[ܘ][[]\HXۙ\H[\]KY\H N\[[Y]HوH^Y\\؜\YHXݙKBY^YH\Y[‚H\]H[ܛY\ܞH\[\\]]H[\\و^[[ˈX]Hۜ]\\X[H[]Y]؝[\X\][XH܈ܙZYۈH[Hܙ\]H^[[X^HH]\YB\X\X\KY\]]H\X\H܈[\XKܘ][[\XH\\H[[[X[\[ YX\قYK][Hو^[[ŒKH\[X[ []ZX[^[[XX\[XYY]HH\H[ܘ]X]\\HؙHH[ܙHZ[[ \˜ۙ][ۈ\ۛۈ\\[X[^[[˂YH\^[[YY[\H\]]\[܂ܛX[[\][ۈ\[[ۛH\[[\H]Y[ˈ\HYY\H[\H\\XH][X]X\ Y KH][X]X^[[•][X]X^[[[\[H\X[Y[وX\Yۙ\[ ܈ٝ\YH[[]Y[[ܜZK[\]Y[H\\H\]Y[YB[܈[]][][XH]\YH[܈ZXHXY[܈\[ۜ]][ۘ\HؚX˂\YH UQT M ‚U ͌UQT Mܚ[˚[ ‚ M ̍H LN B