Department of Neuroscience, The University of Sheffield, Sheffield Clinical Genetics, Service Sheffield Children's Hospital NHS Foundation Trust, Sheffield, UK.
Senior Clinical Lecturer in Neurogenetics & Consultant in Clinical Genetics, Department of Neuroscience, The University of Sheffield, Sheffield, UK.
J Genet Couns. 2022 Oct;31(5):1231-1234. doi: 10.1002/jgc4.1601. Epub 2022 Jul 4.
In the United Kingdom (U.K), 2.19 million people are affected by visual loss. Monogenic causes of visual loss include retinal dystrophies, optic neuropathies, and congenital glaucoma. A variety of reproductive options are available to adults with genetic visual loss to permit them to have an unaffected child. Prenatal diagnostic testing (PND) via amniocentesis or chorionic villus sampling (CVS) or Preimplantation Genetic Testing (PGT) is possible, provided the causal genetic variants are known in the family. We report a qualitative interview study of people with genetic causes of visual loss to explore their attitudes toward reproductive options. Participants reported a range of challenges associated with living with genetic conditions associated with visual loss. These had the potential to shape attitudes to reproductive options. Participants expressed enthusiasm for genetic testing, as it enabled them to understand if relatives might be affected by the visual loss. Decisions around reproductive options were recognized as challenging and highly personal. Positive opinions of PGT were reported, as it permitted conception of a child without the genetic cause of visual loss while avoiding the need for the termination of pregnancy. The provision of accessible information resources on genetics and reproductive options was reported to be important.
在英国,有 219 万人受到视力丧失的影响。单基因原因导致的视力丧失包括视网膜营养不良、视神经病变和先天性青光眼。对于有遗传性视力丧失的成年人,可以通过羊膜穿刺术或绒毛膜活检(CVS)或胚胎植入前遗传学检测(PGT)等各种生殖选择,前提是家族中已知导致视力丧失的遗传变异。我们报告了一项针对遗传性视力丧失患者的定性访谈研究,以探讨他们对生殖选择的态度。参与者报告了与遗传性视力丧失相关的各种挑战,这些挑战可能会影响他们对生殖选择的态度。参与者对基因检测表示热情,因为这使他们能够了解亲属是否可能受到视力丧失的影响。生殖选择的决策被认为是具有挑战性的,而且非常个人化。人们对 PGT 持积极态度,因为它可以在避免终止妊娠的情况下,使他们能够生育一个没有遗传性视力丧失的孩子。据报道,提供有关遗传学和生殖选择的可访问信息资源非常重要。