Full text loading...
The reptile eye
/content/chapter/10.22233/9781905319794.chap16
- Home
- Manuals
- BSAVA Manual of Reptiles
- Chapter
The reptile eye
- Author: David Williams
- From: BSAVA Manual of Reptiles
- Item: Chapter 16, pp 273 - 283
- DOI: 10.22233/9781905319794.16
- Copyright: © 2019 British Small Animal Veterinary Association
- Publication Date: March 2019
Abstract
A wide range of genetic diversity gives rise to many differences between the eyes of different reptile species. This chapter covers anatomy and physiology, what and how reptiles see and ophthalmic examination, as well as the aetiology, diagnosis and management of a wide range of ocular diseases.
Preview this chapter:
The reptile eye, Page 1 of 1
< Previous page | Next page > /docserver/preview/fulltext/10.22233/9781905319794/9781905319794.16-1.gif
/content/chapter/10.22233/9781905319794.chap16
Figures
/content/figure/10.22233/9781905319794.chap16.fig16_1
16.1
Cross-section of a lizard eye. Drawn by S.J. Elmhurst BA Hons (www.livingart.org.uk) and reproduced with her permission. © 2019 British Small Animal Veterinary Association
10.22233/9781905319794/fig16_1_thumb.gif
10.22233/9781905319794/fig16_1.png
16.1
Cross-section of a lizard eye. Drawn by S.J. Elmhurst BA Hons (www.livingart.org.uk) and reproduced with her permission.
/content/figure/10.22233/9781905319794.chap16.fig16_2
16.2
Eye of the Tokay gecko with its multiple pupils. (© David Williams) © 2019 British Small Animal Veterinary Association
10.22233/9781905319794/fig16_2_thumb.gif
10.22233/9781905319794/fig16_2.png
16.2
Eye of the Tokay gecko with its multiple pupils. (© David Williams)
/content/figure/10.22233/9781905319794.chap16.fig16_3
16.3
Histological section of the pineal gland or parietal eye. (© David Williams) © 2019 British Small Animal Veterinary Association
10.22233/9781905319794/fig16_3_thumb.gif
10.22233/9781905319794/fig16_3.png
16.3
Histological section of the pineal gland or parietal eye. (© David Williams)
/content/figure/10.22233/9781905319794.chap16.fig16_6
16.6
Terrapin with hypovitaminosis A. (Courtesy of Dr Edward Elkan Reference Collection) © 2019 British Small Animal Veterinary Association
10.22233/9781905319794/fig16_6_thumb.gif
10.22233/9781905319794/fig16_6.png
16.6
Terrapin with hypovitaminosis A. (Courtesy of Dr Edward Elkan Reference Collection)
/content/figure/10.22233/9781905319794.chap16.fig16_7
16.7
Bacterial conjunctivitis and exudate in a water dragon. (Courtesy of Paul Raiti) © 2019 British Small Animal Veterinary Association
10.22233/9781905319794/fig16_7_thumb.gif
10.22233/9781905319794/fig16_7.png
16.7
Bacterial conjunctivitis and exudate in a water dragon. (Courtesy of Paul Raiti)
/content/figure/10.22233/9781905319794.chap16.fig16_8
16.8
Iguana with a periocular inflammatory mass. In this case it was determined to be a fibriscess/granuloma. (© David Williams) © 2019 British Small Animal Veterinary Association
10.22233/9781905319794/fig16_8_thumb.gif
10.22233/9781905319794/fig16_8.png
16.8
Iguana with a periocular inflammatory mass. In this case it was determined to be a fibriscess/granuloma. (© David Williams)
/content/figure/10.22233/9781905319794.chap16.fig16_9
16.9
The plexus of blood vessels in the reptilian spectacle. (Courtesy of Dr A Mead) © 2019 British Small Animal Veterinary Association
10.22233/9781905319794/fig16_9_thumb.gif
10.22233/9781905319794/fig16_9.png
16.9
The plexus of blood vessels in the reptilian spectacle. (Courtesy of Dr A Mead)
/content/figure/10.22233/9781905319794.chap16.fig16_10
16.10
Oedematous spectacle in a snake about to shed its skin. (Courtesy of Professor Elliott Jacobson) © 2019 British Small Animal Veterinary Association
10.22233/9781905319794/fig16_10_thumb.gif
10.22233/9781905319794/fig16_10.png
16.10
Oedematous spectacle in a snake about to shed its skin. (Courtesy of Professor Elliott Jacobson)
/content/figure/10.22233/9781905319794.chap16.fig16_11
16.11
Retention of the spectacle. (Courtesy of Dr Stephen Barten) © 2019 British Small Animal Veterinary Association
10.22233/9781905319794/fig16_11_thumb.gif
10.22233/9781905319794/fig16_11.png
16.11
Retention of the spectacle. (Courtesy of Dr Stephen Barten)
/content/figure/10.22233/9781905319794.chap16.fig16_12
16.12
The snake mite Ophinyssus natricius. (Courtesy of Dr Stephen Barten) © 2019 British Small Animal Veterinary Association
10.22233/9781905319794/fig16_12_thumb.gif
10.22233/9781905319794/fig16_12.png
16.12
The snake mite Ophinyssus natricius. (Courtesy of Dr Stephen Barten)
/content/figure/10.22233/9781905319794.chap16.fig16_13
16.13
Snake mites appearing as dark deposits around a retained spectacle. (Courtesy of Dr Stephen Barten) © 2019 British Small Animal Veterinary Association
10.22233/9781905319794/fig16_13_thumb.gif
10.22233/9781905319794/fig16_13.png
16.13
Snake mites appearing as dark deposits around a retained spectacle. (Courtesy of Dr Stephen Barten)
/content/figure/10.22233/9781905319794.chap16.fig16_14
16.14
Severe keratitis resulting from attempted removal of a retained spectacle in a snake. © 2019 British Small Animal Veterinary Association
10.22233/9781905319794/fig16_14_thumb.gif
10.22233/9781905319794/fig16_14.png
16.14
Severe keratitis resulting from attempted removal of a retained spectacle in a snake.
/content/figure/10.22233/9781905319794.chap16.fig16_15
16.15
The spectacle shed with the rest of the exuvium in a normal ecdysis. (Courtesy of Dr Stephen Barten) © 2019 British Small Animal Veterinary Association
10.22233/9781905319794/fig16_15_thumb.gif
10.22233/9781905319794/fig16_15.png
16.15
The spectacle shed with the rest of the exuvium in a normal ecdysis. (Courtesy of Dr Stephen Barten)
/content/figure/10.22233/9781905319794.chap16.fig16_16
16.16
Exceptional spectacle swelling in a snake with an obstructed nasolacrimal duct and bullous spectaculopathy. (Courtesy of Dr Frederic Frye) © 2019 British Small Animal Veterinary Association
10.22233/9781905319794/fig16_16_thumb.gif
10.22233/9781905319794/fig16_16.png
16.16
Exceptional spectacle swelling in a snake with an obstructed nasolacrimal duct and bullous spectaculopathy. (Courtesy of Dr Frederic Frye)
/content/figure/10.22233/9781905319794.chap16.fig16_17
16.17
Less obvious distention of the spectacle of the right eye of a snake with nasolacrimal duct obstruction and mild bulbous spectaculopathy. © 2019 British Small Animal Veterinary Association
10.22233/9781905319794/fig16_17_thumb.gif
10.22233/9781905319794/fig16_17.png
16.17
Less obvious distention of the spectacle of the right eye of a snake with nasolacrimal duct obstruction and mild bulbous spectaculopathy.
/content/figure/10.22233/9781905319794.chap16.fig16_18
16.18
Incision to relieve distension of the spectacle in a snake with bullous spectaculopathy. (Courtesy of Dr Daniel Priehs) © 2019 British Small Animal Veterinary Association
10.22233/9781905319794/fig16_18_thumb.gif
10.22233/9781905319794/fig16_18.png
16.18
Incision to relieve distension of the spectacle in a snake with bullous spectaculopathy. (Courtesy of Dr Daniel Priehs)
/content/figure/10.22233/9781905319794.chap16.fig16_19
16.19
Subspectacular abscess in a python with necrotic stomatitis and an ascending infection up the nasolacrimal duct to the subspectacular space. © 2019 British Small Animal Veterinary Association
10.22233/9781905319794/fig16_19_thumb.gif
10.22233/9781905319794/fig16_19.png
16.19
Subspectacular abscess in a python with necrotic stomatitis and an ascending infection up the nasolacrimal duct to the subspectacular space.
/content/figure/10.22233/9781905319794.chap16.fig16_20
16.20
Central corneal ulcer in an aged tortoise following trauma. (© David Williams) © 2019 British Small Animal Veterinary Association
10.22233/9781905319794/fig16_20_thumb.gif
10.22233/9781905319794/fig16_20.png
16.20
Central corneal ulcer in an aged tortoise following trauma. (© David Williams)
/content/figure/10.22233/9781905319794.chap16.fig16_21
16.21
Corneal lipidosis in a red-footed tortoise. (Courtesy of Dr Stephen Barten) © 2019 British Small Animal Veterinary Association
10.22233/9781905319794/fig16_21_thumb.gif
10.22233/9781905319794/fig16_21.png
16.21
Corneal lipidosis in a red-footed tortoise. (Courtesy of Dr Stephen Barten)
/content/figure/10.22233/9781905319794.chap16.fig16_22
16.22
Post-hibernational corneal deposit in a terrapin. (Courtesy of Dr Frederic Frye) © 2019 British Small Animal Veterinary Association
10.22233/9781905319794/fig16_22_thumb.gif
10.22233/9781905319794/fig16_22.png
16.22
Post-hibernational corneal deposit in a terrapin. (Courtesy of Dr Frederic Frye)
/content/figure/10.22233/9781905319794.chap16.fig16_23
16.23
Uveitis in a tortoise with profound hypopyon. © 2019 British Small Animal Veterinary Association
10.22233/9781905319794/fig16_23_thumb.gif
10.22233/9781905319794/fig16_23.png
16.23
Uveitis in a tortoise with profound hypopyon.
/content/figure/10.22233/9781905319794.chap16.fig16_24
16.24
Mature cataract in a tree monitor lizard. (© David Williams) © 2019 British Small Animal Veterinary Association
10.22233/9781905319794/fig16_24_thumb.gif
10.22233/9781905319794/fig16_24.png
16.24
Mature cataract in a tree monitor lizard. (© David Williams)
/content/figure/10.22233/9781905319794.chap16.fig16_25
16.25
Cataract formation in a monitor lizard that was housed in close proximity to a UV light source. Although suggestive, there is currently no direct evidence of UV light causing cataracts in reptiles. (© David Williams) © 2019 British Small Animal Veterinary Association
10.22233/9781905319794/fig16_25_thumb.gif
10.22233/9781905319794/fig16_25.png
16.25
Cataract formation in a monitor lizard that was housed in close proximity to a UV light source. Although suggestive, there is currently no direct evidence of UV light causing cataracts in reptiles. (© David Williams)
/content/figure/10.22233/9781905319794.chap16.fig16_26
16.26
Microphthalmos and corneal oedema in a snake hatched from an egg incubated at too high a temperature. (© David Williams) © 2019 British Small Animal Veterinary Association
10.22233/9781905319794/fig16_26_thumb.gif
10.22233/9781905319794/fig16_26.png
16.26
Microphthalmos and corneal oedema in a snake hatched from an egg incubated at too high a temperature. (© David Williams)