Badanie wzroku jest jutro.

Because wzroku is in the genitive case.

In Polish, many nouns formed from verbs, like badanie (examination / testing), are followed by the thing being examined in the genitive:

• badanie krwi = blood test
• badanie moczu = urine test
• badanie wzroku = eye test / eyesight examination

The base noun is wzrok (sight / eyesight / vision), but after badanie it changes to wzroku.

Because the subject badanie wzroku is singular and neuter.

The noun badanie is a neuter singular noun, so the verb uses the 3rd person singular form:

• jest = is

So:

• Badanie wzroku jest jutro. = The eye test is tomorrow.

If the subject were plural, you would use są:

• Badania są jutro. = The examinations are tomorrow.

Yes, sometimes, especially in casual speech.

You may hear:

• Badanie wzroku jutro.

This sounds shorter and more note-like or conversational, similar to English reminders such as Eye test tomorrow.

But the full sentence

• Badanie wzroku jest jutro. is completely natural and clear, especially for learners and in neutral standard Polish.

Because jutro already means tomorrow, so no preposition is needed.

Polish often uses time words directly:

• dziś / dzisiaj = today
• jutro = tomorrow
• wczoraj = yesterday

So:

• jest jutro = is tomorrow

You do not say w jutro.

The word order can be changed, because Polish is more flexible than English.

The most neutral version is:

• Badanie wzroku jest jutro.

But you could also say:

• Jutro jest badanie wzroku.
• Jutro badanie wzroku jest. (much less neutral, more marked or stylistic)

Changing the order changes the focus or emphasis, not the basic meaning. The original sentence sounds natural and straightforward.

Because Polish has no articles like English a / an / the.

So badanie wzroku can mean:

• an eye test
• the eye test

Which one is meant depends on context.

In this sentence, English would often naturally use the:

• The eye test is tomorrow.

But Polish does not need a separate word for that.

It is a very natural and correct way, especially in a medical or formal context.

Badanie wzroku literally refers to an examination of eyesight/vision. Depending on context, Polish speakers might also use other expressions, for example:

• badanie oczu = examination of the eyes
• test wzroku = vision test
• wizyta u okulisty = appointment with the eye doctor

So badanie wzroku is good Polish, but the exact wording can vary depending on whether you mean a medical exam, a routine test, or a doctor’s appointment.

The noun wzrok usually means sight, eyesight, or vision.

In the phrase badanie wzroku, it refers to checking someone’s ability to see, so English often translates it as:

• eye test
• eyesight test
• vision test

Even though the literal structure is closer to examination of vision, the natural English translation is usually eye test.

A simple approximate pronunciation for an English speaker is:

bah-DAH-nyeh VZROH-koo yest YOO-troh

A few useful notes:

• nie in badanie sounds roughly like nyeh
• wz at the start of wzroku can feel difficult; the w is pronounced like English v
• rz in wzroku sounds like zh in measure, though in this word it is influenced by the surrounding sounds
• j in Polish sounds like English y, so jutro begins like yoo-

Stress in Polish is usually on the second-to-last syllable:

• baDAnie
• wzROku
• JUtro

Yes. In English, several translations may fit naturally:

• The eye test is tomorrow.
• The vision test is tomorrow.
• The eye exam is tomorrow.
• The eyesight examination is tomorrow.

The best English version depends on context. If this is an everyday appointment, eye test sounds very natural. If it is in a medical setting, eye exam or vision examination may fit better.

Badanie is a noun, not a verb form in this sentence.

It comes from the verb badać (to examine / to investigate / to test) and is a verbal noun, often translated as:

• examination
• testing
• test

Here it functions as the subject of the sentence:

• Badanie wzroku = the eye test / eyesight examination

So even though it is related to a verb, in this sentence it behaves like an ordinary noun.