Az optometrista ülve nézi a szemfeneket.

Az is the definite article, meaning the.

Hungarian has two forms of the definite article:

• a before most consonant sounds
• az before vowel sounds

Because optometrista begins with a vowel, Hungarian uses az:

• az optometrista = the optometrist

This choice is based on sound, not on spelling rules like in English.

This is a very common and important question.

Hungarian verbs can use two main conjugation patterns:

• indefinite conjugation
• definite conjugation

Here, the object is definite: a szemfeneket = the retina / the fundus of the eye. Because the verb has a definite object, Hungarian uses the definite conjugation:

• néz = he/she looks, watches
• nézi = he/she looks at it / the specific thing

So:

• Az optometrista nézi a szemfeneket. = The optometrist is examining/looking at the retina.

If there were no definite object, you would normally get néz instead.

Ülve means sitting or more literally while sitting / in a seated position.

It comes from the verb:

• ül = to sit

The form -va/-ve often creates an adverbial participle, which describes how or while something happens.

So:

• ülve nézi = looks at it while sitting
• more natural English: examines it sitting down or is sitting while examining it

In this sentence, ülve describes the optometrist’s position during the action.

It is often closest to while sitting or sitting in English, depending on context.

For example:

• ülve olvas = reads sitting down / reads while sitting
• állva vár = waits standing up
• fekve pihen = rests lying down

So in your sentence, ülve does not mean a separate full action like he sits and looks. It describes the manner or state in which the main action happens.

Because it is the direct object of the verb, so it takes the accusative ending.

The base noun is:

• szemfenék

When it becomes the object, it gets the accusative suffix:

• szemfeneket

So:

• nézi a szemfeneket = looks at/examines the retina

This is one of the most basic case endings in Hungarian: the accusative, usually shown by -t, though the exact form can vary a little depending on the word.

Literally, it is a compound noun:

• szem = eye
• fenék = bottom, base, sometimes back part

So szemfenék literally means something like the back/bottom of the eye.

Medically, it refers to the fundus of the eye—the inner surface at the back of the eye, including the retina area. Depending on context, a translation may say retina or eye fundus.

Yes, Hungarian word order is flexible, but not random. It often shows focus, emphasis, and topic.

This sentence is neutral and natural:

• Az optometrista ülve nézi a szemfeneket.

Roughly:

• Az optometrista = topic, what we’re talking about
• ülve = manner/state
• nézi = verb
• a szemfeneket = object

You could change the order, but the emphasis would change. For example:

• Az optometrista a szemfeneket nézi ülve. This sounds more marked and may emphasize the retina.

• Ülve nézi a szemfeneket az optometrista. This can sound more literary or contrastive, with stronger emphasis on sitting.

So the original version is a good neutral sentence.

Yes, literally nézi means looks at / watches. But in many contexts, English uses a more natural verb such as examines.

For example, in a medical setting:

• Az orvos nézi a torkát. Literally: The doctor is looking at your throat. Natural English: The doctor is examining your throat.

So in your sentence, nézi a szemfeneket may literally be looks at the retina/fundus, but idiomatic English may prefer examines.

No. Hungarian does not usually separate looks and is looking the way English does.

The present tense form nézi can mean:

• looks at
• is looking at
• sometimes, depending on context, even something habitual like looks at regularly

So the exact English translation depends on context.

In this sentence, because it describes an ongoing action, English would often use:

• The optometrist is examining the retina while sitting or more naturally
• The optometrist is examining the retina seated / while seated

Hungarian nouns do not have grammatical gender.

So optometrista can refer to:

• a male optometrist
• a female optometrist

The sentence itself does not tell you the person’s gender unless extra information is added.

This is very different from languages that assign masculine/feminine gender to nouns. In Hungarian:

• articles do not change for gender
• adjectives do not change for gender
• verbs do not change for gender

Yes, that is grammatically possible, but it sounds less neutral.

Putting ülve right before the verb is very natural because it closely links the manner/state to the action:

• ülve nézi = looks at it sitting down

If you move ülve to the end:

• Az optometrista nézi a szemfeneket ülve

it can still be understood, but it may sound a little more like an afterthought or a marked structure. A learner should probably prefer the original version unless there is a specific reason to change the emphasis.

In this sentence, the default reading is that ülve describes the subject, az optometrista.

So the natural interpretation is:

• The optometrist, while sitting, examines the retina.

If you wanted to make it clearer that someone else is sitting, Hungarian would usually need a different structure or extra wording.

For example, if the patient were sitting, you might say something more explicit, depending on what exactly you want to express.

So as written, learners should understand ülve as referring to the optometrist.