Die optometris toets die sigsveld en die oogdruk.

In Afrikaans, die is the definite article for the. It is used for:

• singular nouns: die optometris = the optometrist
• plural nouns: die boeke = the books
• nouns of any grammatical gender, since Afrikaans does not use separate words like the for masculine/feminine/neuter

In this sentence, die appears before each definite noun phrase:

• die optometris
• die sigsveld
• die oogdruk

Afrikaans usually repeats the article just as English does in a sentence like the optometrist tests the visual field and the eye pressure.

Here, toets is a verb and means tests.

So:

• Die optometris toets ... = The optometrist tests ...

Be careful, because toets can also be a noun in other contexts, meaning test or exam:

• Ek skryf môre 'n toets. = I am writing a test tomorrow.

In your sentence, it is clearly a verb because it comes after the subject die optometris.

Afrikaans verbs do not usually change form according to the subject in the present tense.

Compare:

• Ek toets = I test
• Jy toets = you test
• Hy toets = he tests
• Ons toets = we test

The verb stays toets in all these cases.

This is much simpler than English, where the third-person singular usually adds -s.

Yes, in this sentence the basic word order is very similar to English:

• Die optometris = subject
• toets = verb
• die sigsveld en die oogdruk = object

So the pattern is:

Subject + Verb + Object

That makes this sentence quite straightforward for an English speaker.

However, Afrikaans word order can change in other sentence types, especially when another element comes first:

• Vandag toets die optometris die sigsveld.

There, the verb still comes early in the sentence, which is an important Afrikaans pattern.

Yes, optometris is the Afrikaans word for optometrist.

It is a noun referring to the eye specialist who tests vision and related things.

A learner might also come across other eye-related professionals, for example:

• oogarts = eye doctor / ophthalmologist
• optometris = optometrist

So optometris is the correct word here.

Afrikaans very often forms compound nouns by writing them as one word.

So:

• sig = sight / vision
• veld = field
• sigsveld = visual field

and

• oog = eye
• druk = pressure
• oogdruk = eye pressure

This is extremely common in Afrikaans. English sometimes writes similar ideas as separate words, but Afrikaans often joins them.

A few examples:

• huisdeur = house door / front door
• kinderskoene = children’s shoes
• sonbril = sunglasses

So sigsveld and oogdruk are normal Afrikaans compound nouns.

The -s- in sigsveld is a linking sound often found in Afrikaans compounds. It helps connect the two parts of the compound.

So:

• sig
  • veld becomes sigsveld

This linking -s- does not always appear in compounds, but it is common enough that learners should get used to seeing it.

It is best to learn many compounds as complete vocabulary items, because the linking pattern is not always fully predictable from an English speaker’s point of view.

A helpful rough pronunciation is:

• oog ≈ like the vowel in Scottish loch is not right here; better think of a long oh sound followed by a guttural g
• druk ≈ roughly drik with a rounded vowel somewhere between English book and put, depending on accent

A rough learner-friendly guide might be:

• oogdruk ≈ OHKH-druk

A few pronunciation notes:

• oo in Afrikaans is usually a long o sound
• g is often a throaty sound, not the English g in go
• dr is pronounced together as expected

If your accent is still influenced by English, that is normal; the key is to work gradually on the Afrikaans g sound.

A rough pronunciation guide is:

• sigsveld ≈ SEKHS-felt or SIKHS-felt, depending on accent and how narrowly you want to imitate the Afrikaans sounds

Useful points:

• The g is again the guttural Afrikaans sound
• The v in veld may sound softer than an English v
• e in veld is usually a short vowel

Because sigsveld is a compound, it may help to say it in parts first:

• sig
• veld
• then combine them: sigsveld

Yes, en means and and is used in a very similar way.

In this sentence:

• die sigsveld en die oogdruk = the visual field and the eye pressure

It simply joins the two noun phrases.

Afrikaans learners usually find en easy because it behaves much like English and.

You may sometimes hear article omission in certain styles or very compact expressions, but in normal clear prose, die is repeated because both nouns are definite:

• die sigsveld en die oogdruk

This is the most natural full form.

Repeating die makes it clear that both items are separate definite objects being tested. It matches the English pattern the visual field and the eye pressure.

One nice thing for English speakers is that Afrikaans has no grammatical gender system like German or Dutch for articles in everyday use.

So you do not have to learn separate words for:

• masculine the
• feminine the
• neuter the

You just use die.

That means:

• die optometris
• die sigsveld
• die oogdruk

all use the same article.

Yes, the main change would usually be the use of het plus the past participle with ge-.

Present:

• Die optometris toets die sigsveld en die oogdruk.

Past:

• Die optometris het die sigsveld en die oogdruk getoets.

Notice two important things:

• toets becomes getoets
• the helping verb het appears in second position
• the participle usually goes near the end

This is a very common Afrikaans tense pattern.

Yes, they can, depending on meaning and context.

Possible plurals include:

• sigsvelde = visual fields
• oogdrukke = eye pressures

But in medical language, the singular is often used when referring to a measurement or category in a general sense, just as English often says eye pressure rather than eye pressures.

So the singular in your sentence is perfectly natural.

It sounds neutral to slightly formal/medical, mainly because of the vocabulary:

• optometris
• sigsveld
• oogdruk

These are not difficult by Afrikaans standards, but they are clearly part of a medical or eye-care context.

Grammatically, though, the sentence is very ordinary and natural. It is a good example of standard Afrikaans word order and noun phrase structure.