Optyk dobierze soczewki i dopasuje oprawki.

Because both verbs are perfective.

In Polish, a perfective verb does not have a true present tense. Its form that looks “present-like” is normally used with future meaning.

So:

• dobierze = will select / will choose appropriately
• dopasuje = will fit / will match

Compare:

• dobiera = is selecting / selects (imperfective)

• dobierze = will select (perfective)

• dopasowuje = is fitting / fits (imperfective)
• dopasuje = will fit (perfective)

So this sentence describes a completed future action: the optician will choose the lenses and fit the frames.

The infinitives are:

• dobrać → dobierze
• dopasować → dopasuje

These are both perfective infinitives.

Their imperfective partners are:

• dobierać
• dopasowywać

This is a very common Polish pattern:

• imperfective = process, repetition, habit
• perfective = one completed result

So here the speaker is focusing on the result: the optician will successfully choose the right lenses and fit the frames.

They are similar, but not identical.

• dobrać soczewki means to select the right lenses, especially according to someone’s needs, prescription, or situation.
• dopasować oprawki means to fit / adjust / match the frames, for example to the face, size, or style.

So the idea is:

• first, the optician chooses the appropriate lenses
• then, the optician fits or matches the frames

In English, both can sometimes sound like choose or match, but in Polish the collocations are more specific:

• dobrać soczewki
• dopasować oprawki

They are in the accusative plural, because they are the direct objects of the verbs.

The basic singular forms are:

• soczewka = lens
• oprawka = frame

Plural:

• soczewki
• oprawki

In this sentence:

• dobierze co? → soczewki
• dopasuje co? → oprawki

For these nouns, the accusative plural looks the same as the nominative plural. That is very common with non-masculine-personal nouns in Polish.

So although the form looks unchanged, the function is different:

• nominative plural = subject form
• accusative plural = object form

Here they are clearly objects.

It can mean either in some contexts, because soczewka simply means lens.

But in this sentence, because it is paired with oprawki (frames), the most natural meaning is eyeglass lenses, not contact lenses.

So the sentence is about assembling or preparing glasses:

• the optician selects the lenses
• the optician fits the frames

If the sentence were specifically about contact lenses, the context would usually make that clearer.

No.

• oprawki = frames
• okulary = glasses / spectacles as a whole

So:

• oprawki are only the frame part
• soczewki are the lenses
• together they make okulary

That is why this sentence separates the two:

• dobierze soczewki
• dopasuje oprawki

It sounds like something an optician would say or do during the process of choosing glasses.

Because Polish has no articles.

So optyk can mean:

• an optician
• the optician
• sometimes just optician in a general sense

The exact English choice depends on context.

This is normal in Polish. You understand definiteness from the situation, not from a separate word like the or a/an.

Usually optyk means optician.

That is, a person or business connected with glasses, lenses, and frames.

It is not exactly the same as every English eye-related profession:

• optyk = usually optician
• okulista = eye doctor / ophthalmologist

Depending on country and context, English terms like optometrist and optician do not always match Polish words perfectly. But in this sentence, optician is the best choice.

Grammatically, optyk is the subject of the sentence and is in the nominative singular.

Because one subject can govern both verbs.

So:

• Optyk dobierze soczewki i dopasuje oprawki.

means:

• The optician will select the lenses and fit the frames.

Polish, like English, does not need to repeat the subject if it is the same for both actions.

You could repeat it:

• Optyk dobierze soczewki i optyk dopasuje oprawki.

But that would sound unnecessarily heavy unless you wanted special emphasis.

Yes, Polish word order is fairly flexible.

The given order:

• Optyk dobierze soczewki i dopasuje oprawki.

is a neutral, natural order.

But other orders are possible for emphasis, for example:

• Soczewki dobierze optyk, a oprawki dopasuje.
• Oprawki optyk dopasuje, a soczewki dobierze.

These versions shift the focus or contrast.

So the original sentence is the most straightforward way to say it, but Polish can move words around more freely than English because grammatical roles are shown partly by endings, not only by position.