Person: González Alonso-Alegre, Elisa-Margarita
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First Name
Elisa-Margarita
Last Name
González Alonso-Alegre
Affiliation
Universidad Complutense de Madrid
Faculty / Institute
Veterinaria
Department
Medicina y Cirugía Animal
Area
Medicina y Cirugía Animal
Identifiers
2 results
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Item Characterisation of cataracts and other ophthalmic findings in various species of captive penguins(Veterinary Record (VetRecord), 2023) González Alonso-Alegre, Elisa-Margarita; Martínez Nevado, Eva; Pérez de Quadros, Lino; de la Riva-Fraga, Manuel; Rodríguez Álvaro, AlfonsoBackground: Identification of ophthalmic diseases that affect vision and/or cause discomfort should be a priority in captive penguins to guarantee their wellness and life quality. Methods: An observational study was conducted. A routine ophthalmologic examination was performed on eighty clinically normal penguins (160 eyes). Results: Ocular lesions were frequent (56% of penguins). Cataracts were the most common (48.8% of penguins). Cortical cataracts (63% of eyes) and posterior subcapsular cataracts (27.4%) were the most common. All maturation stages were found; incipient cataracts (52.1% of eyes with cataracts) were predominant, while morgagnian cataracts (8.2%) were the least frequent. A correlation existed between lenticular changes and increasing age. Uveitis was present in 43.8% of eyes with cataracts, and ectropion uveae was the predominant clinical sign. Other ocular findings included blepharitis (3.8% of all eyes), corneal leukoma (5.6%) and posterior lens subluxation (7.5%). Limitations: The small number of birds of some species prevented comparison of ophthalmic findings between them. Conclusion: This study corroborates the high prevalence of ocular lesions in captive penguins. Cataracts were frequent and age related. Most cataracts were cortical and the predominant maturation stage was incipient. Lens induced uveitis was a common finding. Lowered intraocular pressure was related to cataract formation.Item Central corneal thickness and intraocular pressure in captive black-footed penguins (Sphenicus dermersus)(Veterinary Ophthalmology, 2014) Martinez Nevado, Eva; González Alonso-Alegre, Elisa-Margarita; Caro Vadillo, Alicia; Rodríguez Álvaro, AlfonsoObjective To determine the central corneal thickness (CCT) by ultrasonic pachymetry and the effect of these values on the measurements of intraocular pressures (IOP) with rebound tonometry (TonoVet®) in a captive flock of black-footed penguins (Spheniscus dermersus). Variations in CCT by age and weight, and variations in IOP by age were compared. Animal studied Both eyes of 18 clinically normal black-footed penguins (Spheniscus dermersus) were used. Procedure The IOP was measured by the TonoVet® in both eyes of all the penguins. CTT measurements were performed 5 min later in all eyes using an ultrasound pachymeter. Results The mean IOP values ± SD were 31.77 ± 3.3 mm Hg (range of mean value: 24–38). The mean CCT values were 384.08 ± 30.9 μm (range of mean value: 319–454). There was no correlation between IOP and CCT values (P = 0.125). There was no difference in CCT measurements by age (P = 0.122) or weight (P = 0.779). A correlation was observed (P = 0.032) between IOP values and age. The coefficient of correlation was negative (ρ = −0.207). Conclusions Ultrasound pachymetry has shown to be a reliable and easy technique to measure CCT in penguins. No correlation was observed between IOP and CCT values in this study. IOP showed a significant but weak decrease as age increased in the black-footed penguin.