📚 Video-Call Speaking Tests: Glasses Requirements for Short-Sighted Candidates and Desk Setup Rules | 视频通话口语考试：近视考生必戴眼镜与桌面设备规则
Video-call speaking tests are now a standard format for many A-Level, IGCSE and ESL oral examinations. The rules that govern them look simple on paper, yet short-sighted candidates frequently lose marks - or their entire result - because of small, avoidable errors involving spectacles, camera height and desk layout. This guide explains what typical exam boards expect, why glasses are treated as compulsory equipment rather than a personal accessory, and how to build a desk setup that survives scrutiny from the first identity check to the final goodbye.
视频通话口语考试如今已成为许多 A-Level、IGCSE 与 ESL 口试的标准形式。规则写在纸面看似简单，但近视考生常常因为一些本可避免的小失误——眼镜、摄像头高度、桌面布置——而丢分，甚至影响整场成绩。本文说明典型考试局的要求、为什么眼镜被视为必需设备而非个人配饰，以及如何搭建一个从身份核验到考试结束都经得起审视的桌面与设备方案。
1. From Face-to-Face to Video Call | 从面对面到视频通话：规则逻辑的变化
In a face-to-face oral, the examiner physically controls the room: they can see your hands, your desk and your whole body. In a video-call test, the webcam becomes the examiner's only window into your environment. Every rule about glasses, cameras and desks exists to keep that window trustworthy. If the examiner cannot see your eyes, your hands and your desk surface, they cannot certify that the test was conducted fairly.
在线下面对面口试中，考官本人掌控考场：能看到你的手、桌面和整个身体。而在视频通话考试里，网络摄像头是考官观察你环境的唯一窗口。所有关于眼镜、摄像头和桌面的规则，都是为了让这个窗口保持"可信"。如果考官看不到你的眼睛、双手和桌面，就无法确认考试是公平进行的。
The practical consequence is that the camera frame is not a cosmetic detail - it is part of the exam specification. Candidates who lean forward, tilt the screen towards themselves or angle the camera to one side may be asked to reset mid-test, which costs time and disrupts fluency.
由此带来的实际后果是：摄像头画面绝不是"外观细节"，它本身就是考试规范的一部分。那些身体前倾、把屏幕往自己方向扳、或把摄像头扭向一侧的考生，可能在考试中途被要求重新调整，既浪费时间也打断表达的流畅度。
2. Why Glasses Are Compulsory for Short-Sighted Candidates | 为什么近视考生必须戴眼镜
Most boards phrase the rule as 'remove anything that obscures your face'. Glasses are an explicit exception to that instruction, because they are corrective medical equipment, not a head covering. If you normally wear glasses for reading or for distance vision, the default expectation is that you wear them for the whole session.
大多数考试局的表述是"移除任何遮挡面部的物品"。眼镜是这条规定的明确例外，因为它属于视力矫正的医疗设备，而不是头饰或遮挡物。如果你平时看书或看远处就需要眼镜，那么默认要求就是整场考试都要佩戴。
There are three concrete reasons. First, consistency of identity: the face on your identification document must match the face on screen. Second, task demands: you will need to read a screen, a task card or a prompt sheet, sometimes at short notice. Third, gaze behaviour: a candidate who cannot see clearly tends to squint, move closer to the lens or stare oddly, all of which can be misread as reading from notes.
原因有三点。第一，身份一致性：证件上的面孔必须与屏幕上的面孔匹配。第二，任务需要：你需要阅读屏幕、任务卡或提示单，有时几乎没有准备时间。第三，目光行为：看不清的考生容易眯眼、凑近镜头或眼神异常，这些都可能被误判为"在看小抄"。
The most common failure is inconsistency. A candidate checks in wearing glasses, takes them off because the frames feel tight, and then reads a task card while squinting. This single moment can trigger a formal query about what was on the desk. Keep the same pair on your face from the identity check until the examiner says the test has ended.
最常见的失误是"前后不一致"。考生戴着眼镜完成签到，考试中觉得镜框夹头就摘掉，然后眯着眼去读任务卡。这一瞬间就可能引来"桌面上有什么"的正式质询。从身份核验到考官宣布考试结束，请保持同一副眼镜始终戴在脸上。
3. Glasses and Identity Verification | 眼镜与身份核验：照片对不上的风险
Identity checks in video-call tests usually involve holding your document next to your face and rotating your head slowly. If your registration photo or your passport photo shows you wearing glasses, appearing without them can delay or even compromise verification. Tell your exam centre in advance if your appearance has changed significantly.
视频通话考试的身份核验通常要求你把证件举到脸旁，并缓慢转动头部。如果你的报名照或护照照上是戴眼镜的，考试时不戴就可能造成核验延迟，甚至无法通过。如果你近期外貌变化较大，务必提前告知考点。
Some document standards require photographs without glasses, while others accept them. This creates a mismatch that is not your fault, and the solution is simply to declare it. A short email to the exams officer stating 'I wear prescription glasses and will wear them throughout the test' removes almost all ambiguity.
有些证件标准要求照片不戴眼镜，有些则允许佩戴，这种差异不是考生的过错，解决办法就是提前申报。给考务老师发一封简短邮件，写明"本人佩戴处方眼镜，考试全程将佩戴"，几乎可以消除所有争议。
Tinted, coloured or heavily reflective lenses are the real problem. Prescription sunglasses and cosmetic coloured lenses should not be worn unless there is a documented medical reason and prior approval. Photochromic lenses that darken indoors are rare but possible; if your lenses look dark on camera, you may be asked to switch to a clear pair.
真正有风险的是染色镜片、彩色镜片和高反光镜片。处方墨镜与美容用彩色镜片除非有医学证明并获事先批准，否则不应佩戴。室内会变深的变色镜片虽少见但确实存在；如果你的镜片在画面中显得发暗，你可能被要求换成透明镜片。
4. Desk Setup Rules at a Glance | 桌面与设备规则一览
The table below summarises the requirements that appear most often across online speaking tests. Treat it as a checklist, then confirm the exact wording in your own board's specification, because individual boards do add or remove items.
下表汇总了在线口语考试中最常见的要求。请把它当作清单使用，但最终仍要以你所报考考试局的官方说明为准，因为各考试局会有所增删。
| Item | 项目 | Status | 状态 | Notes | 说明 |
| Prescription glasses | 处方眼镜 | Required if normally worn | 平时佩戴则必须戴 | Clear lenses, no tint | 镜片需透明无染色 |
| ID document | 身份证件 | Required | 必须 | Kept on desk, face up | 平放桌面，正面朝上 |
| Pen and one sheet of paper | 笔与一张纸 | Only if permitted | 仅在允许时 | Blank, no notes | 必须空白，不得有笔记 |
| Second device | 第二台设备 | Prohibited | 禁止 | Phones off and out of frame | 手机关机并移出画面 |
| Smart watch | 智能手表 | Prohibited | 禁止 | Remove before check-in | 签到时即取下 |
| Water in a clear glass | 透明杯装水 | Usually allowed | 通常允许 | No labels, no lids | 无标签、无杯盖 |
Notice the underlying principle: nothing on the desk should be able to transmit, store or display information. Your glasses pass this test because they only refract light; a smart watch fails because it can receive messages.
请注意背后的原则：桌面上任何物品都不应具备传输、存储或显示信息的能力。眼镜之所以合规，是因为它只折射光线；智能手表之所以违规，是因为它能接收信息。
5. Camera Height, Distance and Eye Line | 摄像头高度、距离与视线角度
The examiner needs to see your eyes clearly enough to judge where you are looking. A camera that sits too low produces a view up your nose and hides the eyes behind the frame; a camera that sits too high makes you look down constantly. The practical target is to keep the lens within about 10 degrees of your horizontal eye line.
考官需要清楚看到你的眼睛，以判断你的视线方向。摄像头太低会拍到仰视角度，镜框容易遮住眼睛；摄像头太高则会让你一直低头。实用目标是：镜头与你的水平视线夹角控制在 10 度以内。
θ = arctan(h ÷ d)
0 m below eye level and 0.60 m away, then θ = arctan(0.20 ÷ 0.60) ≈ 18.4°, which exceeds the target. Raising the camera by roughly 10 cm would bring it back within range.
其中 h 是镜头与眼睛水平线之间的垂直高差，d 是眼睛到摄像头的水平距离。若摄像头比视线低 0.20 m、距离 0.60 m，则 θ = arctan(0.20 ÷ 0.60) ≈ 18.4°，超过目标值。把摄像头抬高约 10 cm 即可回到合理区间。
Working backwards gives a quick rule:
反推可得到一个快速经验公式：
h = d × tan(10°) ≈ 0.176 d
At a viewing distance of 0.60 m the camera should be no more than about 10.5 cm below eye level; at 0.80 m, no more than about 14 cm. In practice, a stack of two or three textbooks under a laptop, or a simple monitor stand, solves the problem in seconds.
观看距离 0.60 m 时，摄像头最多只能低于视线约 10.5 cm；距离 0.80 m 时，最多约 14 cm。实际操作中，在笔记本电脑下垫两到三本书，或使用一个显示器支架，几秒钟就能解决。
Distance also matters for framing. Sit roughly 0.50 m to 0.80 m from the lens so that your head, shoulders and hands are all visible. If you must lean in to be heard, the microphone position is wrong, not the camera.
距离也影响构图。请坐在距镜头约 0.50 m 至 0.80 m 处，使头部、肩膀和双手都在画面内。如果你必须前倾才能被听清，说明麦克风位置不对，而不是摄像头的问题。
6. Device Placement and Cable Discipline | 设备摆放与线缆管理
Place the main device directly in front of you, with the screen perpendicular to your line of sight. An external webcam should sit on top of the monitor, centred, not clipped to one corner. Off-centre cameras make you appear to be looking away from the examiner even when you are looking straight at the screen.
主机应正对你的正前方，屏幕与视线垂直。外接摄像头应放在显示器上方中央，而不是夹在某一侧。摄像头偏置会让你在直视屏幕时，画面上看起来像在看向别处。
Keep cables behind the device, never across the desk. A cable running between your hands and the camera creates movement in the frame every time you gesture, and movement draws the examiner's attention away from your language. If you use a headset, route the cable down your back or over one shoulder.
线缆要走在设备后方，绝不能横穿桌面。一条从双手与摄像头之间穿过的线，会随着你每次手势而在画面中晃动，而晃动会把考官的注意力从你的语言表现上拉走。使用耳麦时，线缆应顺着背后或单侧肩膀走。
Headphones are a special case. Many boards allow a single earphone or a headset for audio quality, while others prohibit anything in or over the ears. If headphones are permitted, keep the microphone boom below your chin so that it does not hide your mouth, and never cover both ears with large cups unless explicitly allowed.
耳机属于特殊情况。许多考试局出于音质考虑允许使用单耳耳机或耳麦，另一些则禁止任何入耳或包耳设备。若允许使用耳机，请把麦克风杆放在下巴以下，不要遮住嘴部；除非明确允许，不要用大耳罩同时盖住双耳。
7. On-Desk and Off-Desk: What May Stay | 桌面许可清单：什么可以留、什么必须移走
A clean desk is the fastest way to avoid suspicion. The following items are normally acceptable:
一张干净的桌面是避免被怀疑的最快方式。以下物品通常可以保留：
- Your ID document, face up and visible. | 身份证件，正面朝上且可见。
- One pen and, if permitted, one blank sheet of paper. | 一支笔，以及在允许时的一张空白纸。
- Your glasses, worn on your face; the case closed and off to the side or out of frame. | 眼镜（戴在脸上），眼镜盒合上放在一侧或画面之外。
- A microfibre cleaning cloth, flat on the desk. | 一块超细纤维擦镜布，平放在桌面。
- A clear glass of water with no label. | 一只无标签的透明水杯。
- The keyboard, mouse and monitor stand that are part of your setup. | 属于你的设备的键盘、鼠标与显示器支架。
Everything else should be removed before check-in: notebooks, textbooks, printed vocabulary lists, sticky notes, wall planners within reach, and any second screen. Even an unused second monitor in the background can raise questions, so turn it off and, if possible, cover it.
其他所有物品都应在签到时候移走：笔记本、教科书、打印的词汇表、便利贴、伸手可及的墙面计划表，以及任何第二块屏幕。即便背景里有一台未使用的副屏也可能引起疑问，请关掉它，并尽可能遮挡。
If you use reading glasses only for close work, decide in advance whether you will need them. Slipping them on and off mid-sentence looks exactly like consulting a hidden note. Either wear them throughout, or place them out of frame and ask the examiner's permission before putting them on.
如果你只在近距离阅读时戴眼镜，请提前决定是否需要。在一句话中间反复戴上摘下，看起来就像在偷看隐藏的笔记。要么全程佩戴，要么把它放在画面之外，并在戴上之前先征得考官同意。
8. Lens Glare, Screen Glare and Reflections | 镜片反光与屏幕反光
Anti-reflective coating is not just about comfort - it is about visibility. The examiner must be able to see your eyes, and a bright reflection sitting exactly where your pupil should be can make that impossible. Reflections obey a simple law:
防反射镀膜不只是为了舒适，它关系到可见性。考官必须能看到你的眼睛，而如果一块明亮的反光正好落在瞳孔位置，这件事就变得不可能。反光遵循一条简单定律：
θᵢ = θᵣ
The angle of incidence equals the angle of reflection. Light from a window or lamp behind the camera bounces off your lens and travels straight back towards the lens of the webcam. Move the light source 40-50 degrees to either side of the camera axis, and that return path is broken.
入射角等于反射角。来自摄像头后方窗户或灯具的光线打到你的镜片上后，会沿原路直接返回网络摄像头的镜头。把光源移到摄像头轴线两侧 40 至 50 度的位置，这条返回光路就被切断了。
Screen reflections matter too. A large bright display in front of you acts as a secondary light source, and its image can appear as a pale rectangle across both lenses. Lowering screen brightness to roughly 50-70 per cent, or switching to a dark interface theme, usually removes it.
屏幕反光同样重要。正前方一块大而亮的显示屏相当于第二个光源，它的影像会以浅色矩形的形式横跨两片镜片。把屏幕亮度降到大约 50% 至 70%，或改用深色界面主题，通常就能消除。
Test this before the exam day, not on it. Record a 30-second video of yourself answering a question, then watch it at full size and ask one question: can I clearly see both of my eyes throughout? If the answer is no, adjust the light before you adjust anything else.
请在考前而非考试当天测试。录一段 30 秒自己回答问题的视频，然后按原始尺寸回看，只问一个问题：我整段过程中两只眼睛是否都清晰可见？如果答案是否定的，先调整光线，再考虑其他。
9. Contact Lenses, Backup Pairs and Emergencies | 隐形眼镜、备用眼镜与突发状况
Contact lenses are usually permitted, but they must be declared. Identity verification sometimes requires you to remove them, and a candidate who has not mentioned wearing lenses can end up in an uncomfortable and time-consuming conversation. Keep a pair of glasses within reach as a backup if you are allowed to.
隐形眼镜通常允许使用，但必须提前申报。身份核验有时会要求你取下，而未事先说明的考生可能陷入尴尬又耗时的沟通。若获允许，请把一副眼镜放在手边作为备用。
It helps to understand what prescription numbers mean when you explain your situation. Lens power in dioptres relates to focal length by:
在说明自己的情况时，理解度数含义会有帮助。镜片屈光度与焦距的关系为：
D = 1 ÷ f
3 cm in front of the eye. Candidates with corrections beyond about ±6.00 D often find that strong lens curvature produces extra edge reflections, so a smaller frame with a good anti-reflective coating is a practical advantage.
其中 f 为以米为单位的焦距。-3.00 D 的近视矫正对应 f ≈ -0.33 m，即镜片把远处光线汇聚在眼前 33 cm 的虚焦点上。矫正度数超过约 ±6.00 D 的考生常会发现，镜片弧度大会在边缘产生
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