Ophthalmology A Short Textbook - part 3 ppt

... 137 Acanthamoeba keratitis. Fig. 5.10 a Clini- cal findings in- clude keratitis with a ring- shaped corneal abscess. b Histologic findings after kerato- plasty include typical double-walled amebic ... cornea is 11.5 mm (10– 13 mm). A congenitally small cornea ( microcornea, diameter less than 10.0 mm) or a congenitally large cornea ( megalocornea, diameter from 13 to 15 mm) is alwa...

Ngày tải lên: 09/08/2014, 20:22

... with accompanying blepharoconjunctivi- tis). Corneal ulceration may occur. Moraxella lacunata (Morax- Axenfeld diplobacillus): large Gram-negative diplobacilli Topical: broad-spectrum antibiotic 0.25 ... bypass, this operation involves opening the lateral wall of the nose and bypassing the nasolacrimal duct to create a direct con- nection between the lacrimal sac and the nasal mucosa. 3 L...

Ngày tải lên: 09/08/2014, 20:22

... therapy for bronchial asthma. 7.4.7.1 Hereditary Congenital Cataracts Familial forms of congenital cataracts may be autosomal dominant, auto- somal recessive, sporadic, or X-linked. They are easily ... lens capsule develops fol- lowing severe blunt trauma to the eyeball. Rarer traumatic cataracts: ❖ Infrared radiation cataract (glassblower’s cataract): This type of cataract occurs after decad...

Ngày tải lên: 09/08/2014, 20:22

... humor drainage. ❖ Suitable for all patients with pri- mary open angle glau- coma. ❖ Adjunctive therapy with beta blockers, epine- phrine deri- vatives, pilocarpine, and car- bonic anhy- drase inhib- itors. ❖ No ... ther- apy causes malaise, nau- sea, depres- sion, anorexia, weight loss, and decreased libido in 40– 50% of glaucoma patients. – Acetazolamide: – Dichlorphenamide: Continued Ǟ 10 G...

Ngày tải lên: 09/08/2014, 20:22

... Disease Definition Congenital retinal telangiectasia with vascular anomalies that nearly always presents unilaterally and can lead to exudation and eventually to exudative reti- nal detachment. Epidemiology: This rare ... forms can lead to a permanent loss of visual acuity. Local stress-related factors and steroids can lead to macular edema in predisposed patients. 12 Retina Lang, Ophthalm...

Ngày tải lên: 09/08/2014, 20:22

... A retinoblastoma that also involves the fellow eye and pineal body is referred to as a trilateral retinoblastoma. A trilateral retinoblastoma is defined as additional manifestation of the tumor in the pineal ... cause or location of a process. In approximately 60% of all cases, the increased intracranial pressure with papilledema is caused by an intracranial tumor; 40% of all cases ar...

Ngày tải lên: 09/08/2014, 20:22

... microphthalmos associated with cataract, nystagmus, and stra- bismus. 15 .3. 2.4 Rubinstein–Taybi Syndrome This craniomandibulofacial dysplasia is primarily characterized by antimon- goloid palpebral ... con- traindicated because it result in aniseikonia of approximately 25%. 16.4 Impaired Accommodation 16.4.1 Accommodation Spasm Definition An accommodation spasm is defined as inadequate prot...

Ngày tải lên: 09/08/2014, 20:22

... surgery). Berlin’s edema Retinal and macular edema at the posterior pole of the globe (contre- coup location) possibly asso- ciated with bleeding. Loss of visual acuity. Watch-and-wait approach is advised until ... license. 4 93 Table 17.4 Differential diagnosis between concomitant strabismus and paralytic stra- bismus Differential criterion Concomitant strabismus Paralytic strabismus Onset...

Ngày tải lên: 09/08/2014, 20:22

... 172, 1 73 complicated cataracts 180, 181 congenital 182 –185, 192– 195 anterior pyramidal cat- aract 1 83 cerulean cataract 1 83 coronary cataract 1 83 from transplacental infection 185 lamellar/zonular cata- ract ... 181 diabetic cataract 179 dialysis cataract 179 galactosemic cataract 179, 185 snowflake cataract 179 tetany cataract 180 medical treatment 185 membranous cataract 285 secon...

Ngày tải lên: 09/08/2014, 20:22

... -1 .25 -0 .78 -0 .79 -0 .96 -1 .40 -1 .67 8 -1 .46 -0 .92 -1 .14 -1 .44 -1 .87 -2 .54 10 -1 .66 -1 . 13 -1 .10 -1 .44 -1 .95 -2 .46 13 -1 . 53 -1 .12 -1 .28 -1 .47 -2 .07 -2 .80 16 -1 .50 -1 .34 -1 .39 -1 .65 -1 .96 -3 .35 ... 0.00 2 -1 .64 -0 .74 -2 .48 -2 .05 4 -1 .59 -1 . 23...

Ngày tải lên: 22/06/2014, 04:20